Metal Oxide Nanocomposites. Группа авторов

Metal Oxide Nanocomposites - Группа авторов


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and gas-sensing applications, applications of metal oxide-based nanocomposites, triboelectric nanogenerators (TENG) based on nanocomposites, and metal oxide nanocomposites for water purification. Since this book is an up-to-date record of the major findings and observations in the field—with chapters contributed by prominent researchers from industry, academia and government/private research laboratories across the world—it will act as a very valuable reference source for university and college faculties, professionals, post-doctoral research fellows, senior graduate students, and researchers from R&D laboratories working in the area of metal oxide nanocomposites.

      The introductory chapter discusses the scope, state of the art, preparation methods, new challenges and opportunities concerning metal oxide nanocomposites. Chapter 2 gives a more detailed review of structure-property relationships. Included in the many topics discussed in this chapter are the functions of fibers and matrix, classification of composites, matrix-based composites, reinforcements, polymer composites, composites processing, product fabrication, application, and special features of composites, along with their advantages and disadvantages compared with metals.

      Two main topics are addressed in Chapter 5. The first is nanocomposite photocatalysts based on metal oxide, including those based on TiO2, ZnO and WOx. The second topic, the application of metal oxide composites in photocatalysis, includes a discussion of water splitting for hydrogen generation, photodegradation of pollutants and wettability patterning based on photocatalysts. Chapter 6 is a structural analysis of metal oxide nanocomposites for sensor applications. Following an introduction to the subject matter, the chapter goes on to discuss binding of metal oxide with imidazole and silane, characterizations, absorption and emission characteristics, and sensing mechanisms.

      Thermal property analysis of metal oxide nanocomposites is discussed in Chapter 7. In this chapter the authors explain the use of metal and metal oxide nanoparticles in thermal management and synthesis procedures, the mechanism of thermal conductivity enhancement and thermal conductivity modeling of nanofluids. In Chapter 8 there is a two-part discussion on the topic of semiconducting metal oxides for photocatalytic and gassensing applications. The first part covers topics such as organic dyes as a major source of water pollution, conventional methods used for dye degradation, advanced oxidation processes, the role electronic structure of semiconducting metal oxide plays in photocatalysis, basic principles of photocatalysis, oxidizing species generation mechanism, semiconductor photocatalysts, kinetic studies of semiconductor photocatalysis and parameters affecting dye degradation. The second part of the chapter covers topics such as the evolution of gas sensors and their necessity, metal oxides as gas sensors, the gas-sensing mechanism of metal oxides and factors influencing sensor performance.

      In conclusion, we would like to express our sincere gratitude to all the contributors to this book, whose commitment and sincerity shown towards their contributions, along with their enthusiasm and excellent support, enabled the successful completion of this venture. We would also like to thank all the reviewers who have taken their valuable time to make critical comments on each chapter. Finally, our thanks go out to Scrivener Publishing for recognizing the demand for such a book and realizing the increasing importance of the area of metal oxide nanocomposites and their synthesis and applications.

       Dr. B. Raneesh Dr. Visakh P. M. November 2020

      Metal Oxide Nanocomposites: State-of-the-Art and New Challenges

       Visakh P.M.1* and B. Raneesh2

       1Department of Physical Electronics, TUSUR University, Tomsk, Russia

       2Department of Physics, Catholicate College, Pathanamthitta, Kerala, India

       Abstract

      This first chapter discusses about the metal oxide nanocomposites: synthesis and applications with many different topics such as introduction to nanocomposites, graphene-based metal, metal oxide nanocomposites, carbon nanotube–metal oxide nanocomposites, metal oxide-based nanocomposites application towards photocatalysis, metal oxide nanomaterials for sensor applications, metal oxide nanocomposites and its thermal property analysis, semiconducting metal oxides for photocatalytic and gas sensing applications, and other potential applications of metal oxide-based nanocomposites.

      Keywords: Metal oxide nanocomposites, carbon nanotube, graphene, photocatalysis, gas sensor


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