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Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids

Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids
Methods, Fundamentals and Modeling

by Can Erkey,Michael Turk

  • Publisher : Elsevier
  • Release : 2021-08-15
  • Pages : 210
  • ISBN : 9780444640895
  • Language : En, Es, Fr & De
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Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids: Methods, Fundamentals and Modeling offers a comprehensive review of the current status of research, development and insights on promising future directions, covering the synthesis of nanostructured materials using supercritical fluid-based processes. The book presents fundamental aspects such as high-pressure phase behavior of complex mixtures, thermodynamics and kinetics of adsorption from supercritical solutions, mechanisms of particle formation phenomena in supercritical fluid-based processes, and models for further development. It bridges the gap between theory and application, and is a valuable resource for scientists, researchers and students alike. Includes thermodynamic and mass transfer data necessary for industrial plant design Explains the mechanisms of reactions in a supercritical fluid environment Lists numerous industrial processes for the production of many consumer products

Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids

Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids
Methods, Fundamentals and Modeling

by Can Erkey,Michael Turk

  • Publisher : Elsevier
  • Release : 2021-08-01
  • Pages : 210
  • ISBN : 0444640908
  • Language : En, Es, Fr & De
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Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids: Methods, Fundamentals and Modeling offers a comprehensive review of the current status of research, development and insights on promising future directions, covering the synthesis of nanostructured materials using supercritical fluid-based processes. The book presents fundamental aspects such as high-pressure phase behavior of complex mixtures, thermodynamics and kinetics of adsorption from supercritical solutions, mechanisms of particle formation phenomena in supercritical fluid-based processes, and models for further development. It bridges the gap between theory and application, and is a valuable resource for scientists, researchers and students alike. Includes thermodynamic and mass transfer data necessary for industrial plant design Explains the mechanisms of reactions in a supercritical fluid environment Lists numerous industrial processes for the production of many consumer products

Supercritical Fluids and Organometallic Compounds

Supercritical Fluids and Organometallic Compounds
From Recovery of Trace Metals to Synthesis of Nanostructured Materials

by Can Erkey

  • Publisher : Elsevier
  • Release : 2011
  • Pages : 233
  • ISBN : 0080453295
  • Language : En, Es, Fr & De
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Organometallic compounds are utilized as reagents in the preparation and processing of advanced nanostructured materials, as catalysts in the production of a wide variety of specialty chemicals and polymers, and as drugs. Supercritical fluid science and technology has a wide variety of applications ranging from extraction of pharmaceutically active compounds to the synthesis of advanced materials. The combination of organometallic chemistry and supercritical fluids has significant potential. This book covers the fundamental aspects and related applications in this rapidly growing area. Covers the preparation of nanostructured composite materials using supercritical fluids Focuses on the intersection of organometallic chemistry and supercritical fluids Addresses the behavior of organometallic compounds in supercritical fluid environments

Synthesis of Nanostructured Materials by Etching in Supercritical Carbon Dioxide

Synthesis of Nanostructured Materials by Etching in Supercritical Carbon Dioxide
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2009
  • Pages : 228
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Supercritical CO2(scCO2) is emerging as a viable and environmentally sustainable platform for nanomaterials synthesis due to its tunable solvent properties combined with low surface tension and viscosity, which allow rapid, non-destructive wetting within small features. However, to advance the utility of this fluid, a more thorough understanding of surface chemistry at high pressures is needed. In this study, the behavior of reactive solids in scCO2was examined by etching thin dielectric, metal, and alloy films to determine the fundamental mechanisms controlling the reactions. Models were developed to describe the etching processes and to benchmark scCO2with conventional methods. Dielectric SiOxNyfilms were etched with an HF/pyridine complex dissolved in scCO2. The anhydrous etching process resulted in formation of a residual (NH4)2SiF6layer that limited transport of reactants to the film and caused a drop in reaction order. Partial removal of the salt was accomplished by sublimation under vacuum. Etching of thin CuO films with hexafluoroacetylacetone (hfacH) in scCO2was studied and found to occur via a 3-step Langmuir-Hinshelwood reaction sequence. The kinetic model showed that lower scCO2densities favored hfacH adsorption on the CuO surface and that scCO2solvation forces lowered the activation barrier for the rate-limiting step. Adding up to 10 & times the molar ratio of pure H2O to hfacH nearly doubled theetching rate through formation of a hydrogen-bonded hfacH complex. Both bulk and thin film AgCu alloys were selectively etched in scCO2to generatenanoporous Ag structures. As Cu was preferentially removed through selective oxidation and chelation, the Ag atoms conglomerated into successively larger clusters similar to mechanisms reported in aqueous phase dealloying. Supercritical dealloying was observed at Cu compositions below typical parting limits, suggesting enhanced fluid transport in the evolving pores. When using in situ oxidation, the etching reaction was limited by decomposition of H2O2. Inverse space image analysis of samples with initial phase domain sizes between 250 - 1000 nm showed that below a threshold of approximately 500 nm, the dealloyed feature size mimicked the starting microstructure. Larger phase domains prohibited surface diffusion of Ag between phases producing a mixture of large and small Ag nanostructures.

Synthesis of Nanomaterials

Synthesis of Nanomaterials
Mechanisms, Kinetics and Materials Properties

by S. Noor Mohammad

  • Publisher : Springer Nature
  • Release : 2020-11-28
  • Pages : 446
  • ISBN : 3030575853
  • Language : En, Es, Fr & De
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This book deals with the synthesis of nanomaterials with a strong focus on the underlying reaction kinetics and various synthesis mechanisms. It gives a detailed description of all major synthesis routes of many types of novel nanomaterials including nanowires, carbon nanotubes, semiconductor nanotubes, carbon nanobelts, nanofibers, nanorings, nanodots and quantum dots. In addition, it articulates the fundamental mechanisms of nanomaterials synthesis via vapor-phase, liquid-phase and solid-phase processes, highlighting the various strengths and weaknesses of each mechanism. This monograph provides the reader with a thorough review of the known state-of-the-art, along with a detailed comparison and analysis of all possible nanomaterials synthesis mechanisms. An important element of the book is how to obtain critical knowledge for controlling the morphology of nanomaterials and thereby fine tune their materials properties. The book is an ideal guide for graduate students and researchers new to the field seeking to establish or enhance their understanding of the physical and chemical fundamentals of nanomaterials synthesis mechanisms.

Handbook of Greener Synthesis of Nanomaterials and Compounds

Handbook of Greener Synthesis of Nanomaterials and Compounds
Volume 1: Fundamental Principles and Methods

by Boris Kharisov,Oxana Kharissova

  • Publisher : Elsevier
  • Release : 2021-04-16
  • Pages : 976
  • ISBN : 012821967X
  • Language : En, Es, Fr & De
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Handbook of Greener Synthesis of Nanomaterials and Compounds, Volume One: Fundamental Principles and Methods provides a comprehensive review of developments in this field, combining foundational green and nano-chemistry with key information researchers need to assess, select and apply the most appropriate green synthesis approaches to their own work. Beginning with a clear introduction to the fundamentals of green synthesis that places synthesis in the context of green chemistry, the book goes on to discuss key greener physical, chemical and biological methods for synthesis, before going on to discuss greener synthesis at the macro and nanoscales. Further chapters explore the potential for synthesis at the industrial scale, synthesis from renewable sources, and environmental aspects of greener synthesis. Drawing on the experiences of a global team of expert contributors, this book provides an indispensable guide for all those interested in understanding, identifying, developing or applying greener synthetic approaches in their work. Highlights innovative, greener technologies for the synthesis of nanomaterials and related composites under green chemistry conditions Discusses the synthesis of widely different groups of chemical compounds and distinct materials Provides illustrative examples throughout to support learning and guide implementation of theory in practice

Supercritical Fluid Technology in Materials Science and Engineering

Supercritical Fluid Technology in Materials Science and Engineering
Syntheses: Properties, and Applications

by Ya-Ping Sun

  • Publisher : CRC Press
  • Release : 2002-03-26
  • Pages : 600
  • ISBN : 0824744713
  • Language : En, Es, Fr & De
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This title analyzes the chemical reactions, structures and fundamental properties of supercritical fluid systems for the production of new compounds, nanomaterials, fibers, and films. It complies contemporary research and technological advances for increased selectivity and reduced waste in chemical, industrial, pharmaceutical, and biomedical applications. Topics include fluid dynamics, catalysis, hydrothermal synthesis, surfactants, conducting polymers, crystal growth, and other aspects and applications of supercritical fluids.

Supercritical Fluid Nanotechnology

Supercritical Fluid Nanotechnology
Advances and Applications in Composites and Hybrid Nanomaterials

by Concepcion Domingo Pascual,Pascale Subra-Paternault

  • Publisher : CRC Press
  • Release : 2015-10-22
  • Pages : 566
  • ISBN : 981461341X
  • Language : En, Es, Fr & De
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The environmental and climate program demands technological solutions in the chemical industry that incorporate prevention of pollution. Major advances are needed to reduce the use of organic solvents, such as methanol, toluene, xylene, methyl ethyl ketone, and dichloromethane, which account for 27 percent of total toxics release inventory chemical

Organometallic Flow Chemistry

Organometallic Flow Chemistry
A Book

by Timothy Noël

  • Publisher : Springer
  • Release : 2016-04-22
  • Pages : 267
  • ISBN : 3319332430
  • Language : En, Es, Fr & De
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The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics of pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors. All chapters from Topics in Organometallic Chemistry are published OnlineFirst with an individual DOI. In references, Topics in Organometallic Chemistry is abbreviated as Top Organomet Chem and cited as a journal

Advances in Microporous and Mesoporous Materials

Advances in Microporous and Mesoporous Materials
A Book

by Rafael Huirache Acuña

  • Publisher : BoD – Books on Demand
  • Release : 2020-07-15
  • Pages : 124
  • ISBN : 1838807551
  • Language : En, Es, Fr & De
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Nowadays, microporous and mesoporous materials are versatile solids of great interest due to their structures and pore sizes, which allow their application in many areas. Accordingly, with IUPAC, materials with pore sizes smaller than 2 nm are called microporous and with pore sizes between 2 and 50 nm are called mesoporous. The pore size has an important impact on the material properties and affects their applications. In addition, high surface area, and their ability to incorporate functional groups on the framework are of great relevance for commercial and science applications. This book intends to provide readers with a comprehensive overview of recent improvements in the microporous and mesoporous materials field.

Environment, Energy and Climate Change I

Environment, Energy and Climate Change I
Environmental Chemistry of Pollutants and Wastes

by Elena Jiménez,Beatriz Cabañas,Gilles Lefebvre

  • Publisher : Springer
  • Release : 2015-01-16
  • Pages : 432
  • ISBN : 3319129074
  • Language : En, Es, Fr & De
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This volume offers a comprehensive overview of advanced research in the field of environmental green chemistry for air, soil and water pollutants, and presents emerging technologies on the chemical treatment of polluted sites and wastes. The 15 chapters, prepared by internationally respected experts, address the following topics: (1) monitoring of indoor and outdoor air pollutants; (2) atmospheric degradation processes and formation mechanisms of secondary pollutants; (3) the environmental assessment and impacts of soils polluted by heavy metals and hydrocarbons; (4) sustainable and emerging technologies for the chemical treatment of organic and animal wastes and wastewaters; (5) photocatalytic CO2 conversion methods for the mitigation of greenhouse effects; and (6) non-conventional methods in green chemistry synthesis. Lastly, the authors outline the future perspectives of each topic. Given its multidisciplinary approach, combining environmental analysis and engineering, the book offers a valuable resource for all researchers and students interested in environmental chemistry and engineering.

Nanostructured Materials

Nanostructured Materials
A Book

by Jackie Ying

  • Publisher : Academic Press
  • Release : 2001-12-28
  • Pages : 222
  • ISBN : 9780127444512
  • Language : En, Es, Fr & De
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This thematic volume of Advances in Chemical Engineering presents the latest advances in the exciting interdisciplinary field of nanostructured materials. Written by chemical engineers, chemists, physicists, materials scientists, and bioengineers, this volume focuses on the molecular engineering of materials at the nanometer scale for unique size-dependent properties. It describes a "bottom-up" approach to designing nanostructured systems for a variety of chemical, physical, and biological applications.

Advanced Nanotechnology and Application of Supercritical Fluids

Advanced Nanotechnology and Application of Supercritical Fluids
A Book

by Inamuddin,Abdullah M. Asiri

  • Publisher : Springer Nature
  • Release : 2020-07-27
  • Pages : 245
  • ISBN : 303044984X
  • Language : En, Es, Fr & De
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Globalization and industrialization involve a number of reactions, products, extractions, and separations that require the use of organic solvents. These solvents are responsible for a number of ecological concerns, including atmospheric and land toxicity. Conventional organic solvents are regarded as volatile organic compounds; some are even limited due to their potential for ozone layer depletion. While supercritical liquids exhibit physical properties that could make them ideal substitutes for these volatile compounds, there is particular interest in the use of carbon dioxide as a solvent of crude material. In particular, carbon dioxide has apparent ‘green’ properties, like its noncombustible nature, the fact that it is generally nonpoisonous, and its relative inertness. Thus, the use of supercritical carbon dioxide can provide practical improvements to the sustainability of industrial products and processes. This book provides in-depth literature in the area of industrial green processes, focusing on the separation, purification, and extraction of compounds utilizing supercritical carbon dioxide as a green solvent.

Green Synthesis of Nanomaterials for Bioenergy Applications

Green Synthesis of Nanomaterials for Bioenergy Applications
A Book

by Neha Srivastava,Manish Srivastava,P. K. Mishra,Vijai Kumar Gupta

  • Publisher : John Wiley & Sons
  • Release : 2020-10-26
  • Pages : 272
  • ISBN : 1119576814
  • Language : En, Es, Fr & De
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An authoritative summary of the quest for an environmentally sustainable synthesis process of nanomaterials and their application for environmental sustainability Green Synthesis of Nanomaterials for Bioenergy Applications is an important guide that provides information on the fabrication of nanomaterial and the application of low cost, green methods. The book also explores the impact on various existing bioenergy approaches. Throughout the book, the contributors—noted experts on the topic—offer a reliable summary of the quest for an environmentally sustainable synthesis process of nanomaterials and their application to the field of environmental sustainability. The green synthesis of nanoparticles process has been widely accepted as a promising technique that can be applied to a variety of fields. The green nanotechnology-based production processes to fabricate nanomaterials operates under green conditions without the intervention of toxic chemicals. The book’s exploration of more reliable and sustainable processes for the synthesis of nanomaterials, can lead to the commercial application of the economically viability of low-cost biofuels production. This important book: Summarizes the quest for an environmentally sustainable synthesis process of nanomaterials for their application to the field of environmental sustainability Offers an alternate, sustainable green energy approach that can be commercially implemented worldwide Covers recent approaches such as fabrication of nanomaterial that apply low cost, green methods and examines its impact on various existing bioenergy applications Written for researchers, academics and students of nanotechnology, nanosciences, bioenergy, material science, environmental sciences, and pollution control, Green Synthesis of Nanomaterials for Bioenergy Applications is a must-have guide that covers green synthesis and characterization of nanomaterials for cost effective bioenergy applications.

Particulate Materials

Particulate Materials
Synthesis, Characterisation, Processing and Modelling

by Chuan-Yu Wu,Wei Ge

  • Publisher : Royal Society of Chemistry
  • Release : 2011-11-16
  • Pages : 304
  • ISBN : 184973514X
  • Language : En, Es, Fr & De
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Naturally occurring or manufactured through chemical and/or physical processes, particulate materials are substances consisting of individual particles which have significance to the global economy, society and environments. Due to the diversity and intrinsic nature, manufacturing, handling and processing of particulate materials still face numerous challenges. Aimed at addressing these challenges, this book contains a selection of papers discussing the state-of-the-art research in particulate materials science that were presented at the UK–China Particle Technology Forum III held at Birmingham, UK in 2011. Classified into four distinct topics namely synthesis, characterisation, processing and modelling, the chapters showcase the advances in these areas including a range of advanced synthesis methods for example, spray-pyrolysis, supercritical fluid synthesis assisted with ultrasound, continuous synthesis using supercritical water, hydrothermal synthesis of nano-particulate materials and jet milling. For characterisation, various methods for characterising particulate materials at both particle and system levels are introduced and how these properties affect the behaviour of particulate materials in various processes, such as inhalation, filling, and consolidation, are discussed. In the processing section, recent advances such as capsule filling, micro-dosing, dry granulation, roll compaction, milling, and more are presented. The last section concerns mathematical and numerical modelling in particulate materials, for which the book includes both analytical methods and advanced numerical methods, such as discrete element methods (DEM), computational fluid dynamics (CFD), lattice Boltzmann methods (LBM), coupled DEM/CFD and DEM/LBM, and their applications. Particulate Materials is aimed at research communities dealing with these diverse materials, and scientists and engineers in powder handling industries, such as pharmaceutical, food, fine chemical and detergents.

Dekker Encyclopedia of Nanoscience and Nanotechnology

Dekker Encyclopedia of Nanoscience and Nanotechnology
A Book

by James A. Schwarz,Cristian I. Contescu,Karol Putyera

  • Publisher : CRC Press
  • Release : 2004
  • Pages : 4014
  • ISBN : 9780824750497
  • Language : En, Es, Fr & De
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Near-infrared Nanomaterials

Near-infrared Nanomaterials
Preparation, Bioimaging and Therapy Applications

by Professor Fan Zhang

  • Publisher : Royal Society of Chemistry
  • Release : 2016-07-28
  • Pages : 409
  • ISBN : 1782623191
  • Language : En, Es, Fr & De
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In the last decade, bioimaging and therapy based on near-infrared (NIR) nanomaterials have played an important role in biotechnology due to their intrinsic advantages when compared with the traditional imaging probe and medicine. NIR nanomaterials allow deeper penetration depth, low detection threshold concentration and better targeted performance. This book systematically summarises the recent progress in the fabrication and application of NIR nanomaterials for biomedical imaging and therapy, and discusses the advantages, challenges and opportunities available. Near-infrared Nanomaterials contains a chapter highlighting the outlook of these materials, detailing novel ideas for the further application of NIR nanomaterials in bioimaging and medicine. Written by leading experts working in the field, this title will have broad appeal to those working in chemistry, materials science, nanotechnology, biology and bioengineering, biomedical science and biophysics.

Green Sustainable Process for Chemical and Environmental Engineering and Science

Green Sustainable Process for Chemical and Environmental Engineering and Science
Green Inorganic Synthesis

by Dr. Inamuddin,Rajender Boddula,Mohd Imran Ahamed,Abdullah M. Asiri

  • Publisher : Elsevier
  • Release : 2020-12-01
  • Pages : 298
  • ISBN : 0128219017
  • Language : En, Es, Fr & De
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Green Sustainable Process for Chemical and Environmental Engineering and Science: Green Inorganic Synthesis provides an in-depth review of the synthesis of inorganic materials utilizing green chemistry protocols. It summarizes the green synthesis methods used for the preparation, processing and development of inorganic materials. The methods for the synthesis of various inorganic materials includes microwaves, sonochemical, electrochemical, bioinspired, enzyme mediated, sol-gel, solid state, etc. It also includes green-solvents driven inorganic material synthesis using ionic liquids, supercritical fluids, plant-derived materials, and microorganisms. The content of this book provides useful information which may be used to inspire the readers to new synthetic routes for sustainable inorganic synthesis. This book brings together panels of highly-accomplished experts in the field of inorganic chemistry. It is a unique book, extremely well structured and essential resource for undergraduate, postgraduate students, faculty, R&D professionals, production chemists, environmental engineers, and industrial experts. Essential study guide for inorganic chemical synthesis Provides a broad overview of eco-friendly methods in inorganic synthesis Bestows the latest advances in inorganic synthetic protocols Provides key references and details in each synthesis technique/methods Outlines eco-friendly inorganic synthesis and chemical processes using microwave, sonochemical and solid-state techniques

Green Sustainable Processes for Chemical and Environmental Engineering and Science

Green Sustainable Processes for Chemical and Environmental Engineering and Science
Supercritical Carbon Dioxide As Green Solvent

by Abdullah M. Asiri,Inamuddin,Arun M. Isloor

  • Publisher : Unknown Publisher
  • Release : 2019-10
  • Pages : 506
  • ISBN : 0128173882
  • Language : En, Es, Fr & De
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Green Sustainable Processes for Chemical and Environmental Engineering and Science: Supercritical Carbon Dioxide as Green Solvent provides an in-depth review on the area of green processes for the industry, focusing on the separation, purification and extraction of medicinal, biological and bioactive compounds utilizing supercritical carbon dioxide as a green solvent and their applications in pharmaceuticals, polymers, leather, paper, water filtration, textiles and more. Chapters explore polymerization, polymer composite production, polymer blending, particle production, microcellular foaming, polymer processing using supercritical carbon dioxide, and a method for the production of micro- and nano-scale particles using supercritical carbon dioxide that focuses on the pharmaceutical industry. A brief introduction and limitations to the practical use of supercritical carbon dioxide as a reaction medium are also discussed, as are the applications of supercritical carbon dioxide in the semiconductor processing industry for wafer processing and its advantages and obstacles. Reviews available green solvents for extraction, separation, purification and synthesis Outlines environmentally friendly chemical processes in many applications, i.e., organic reactions, metal recovery, etc. Includes numerous, real industrial applications, such as polymers, pharmaceuticals, leather, paper, water filtration, textiles, food, oils and fats, and more Gives detailed accounts of the application of supercritical CO2 in polymer production and processing Provides a process for extraction, seperation and purification of compounds of biological medicinal importance Gives methods for nanoparticle production using supercritical carbon dioxide Provides a systematic discussion on the solubility of organic and organometallic compounds

Functionalized Nanomaterials

Functionalized Nanomaterials
A Book

by Vineet Kumar,Praveen Guleria,Nandita Dasgupta,Shivendu Ranjan

  • Publisher : CRC Press
  • Release : 2021-04-07
  • Pages : 648
  • ISBN : 1000367207
  • Language : En, Es, Fr & De
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Nanomaterials contain some unique properties due to their nanometric size and surface functionalization. Nanomaterial functionalization also affects their compatibility to biocompatibility and toxicity behaviors. environment and living organism. This makes functionalized nanomaterials a material with huge scope and few challenges. This book provides detailed information about the nanomaterial functionalization and their application. Recent advancements, challenges and opportunities in the preparation and applications of functionalized nanomaterials are also highlighted. This book can serve as a reference book for scientific investigators, doctoral and post-doctoral scholars; undergrad and grad. This book is very useful for multidisciplinary researchers, industry personnel’s, journalists, and policy makers. Features: Covers all aspects of Nanomaterial functionalization and its applications Describes and methods of functionalized nanomaterials synthesis for different applications Discusses the challenges, recent findings, and cutting-edge global research trends on functionalization of nanomaterials and its applications It discusses the regulatory frameworks for the safe use of functionalized nanomaterials. It contains contributions from international experts from multiple disciplines.