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Library of Congress Cataloging‐in‐Publication Data
Names: Pandikumar, Alagarsamy, editor. | Jothivenkatachalam, Kandasamy, 1973‐ editor.
Title: Photocatalytic functional materials for environmental remediation / edited by Alagarsamy Pandikumar
(Functional Materials Division, CSIR‐Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India), Kandasamy Jothivenkatachalam (Department of Chemistry, Bharathidasan Institute of Technology (UCE ‐ BIT campus), Anna University, Tiruchirappalli, Tamil Nadu, India).
Description: First edition. | Hoboken, New Jersey : John Wiley & Sons, Inc., 2019. | Includes bibliographical references and index. | Identifiers: LCCN 2019008193 (print) | LCCN 2019021592 (ebook) | ISBN 9781119529910 (Adobe PDF) | ISBN 9781119529897 (ePub) | ISBN 9781119529842 (hardcover)
Subjects: LCSH: Photocatalysis. | Nanocomposites (Materials)–Environmental aspects. | Nanostructured materials–Environmental aspects. | Carbon dioxide mitigation.
Classification: LCC QD716.P45 (ebook) | LCC QD716.P45 P56 2019 (print) | DDC 628.5028/4–dc23
LC record available at https://lccn.loc.gov/2019008193
Cover Design: Wiley
Cover Images: © R.Tsubin / Getty Images, © Geir Pettersen / Getty Images,
© Jacky Parker Photography / Getty Images,
© Valentyn Volkov / Shutterstock, © djgis / Shutterstock
Increasing environmental concerns are driving a growing need for clean and renewable energy sources. Photocatalysis driven by visible light is a promising strategy which can be used in many applications, such as the removal of organic pollutants, hydrogen production, air purification, and biological studies. Photocatalysis has been considered to be one of the most promising technologies for the production of solar fuel as well as the mineralization of pollutants. As photocatalysts use photon energy, either from sunlight or from simulated illumination, they are relatively inexpensive, non‐toxic and ecofriendly. Upon illumination, the semiconductor photocatalysts undergo charge separation. Holes are produced in the valance band and electrons are promoted to the conduction band. These electrons and holes are then involved in redox reactions with adsorbed species.
Multifunctional photocatalytic materials are of interest in designing and constructing advanced light energy harvesting assemblies for both energy production and environmental remediation. In this book you will find recent developments in multifunctional photocatalytic materials, such as semiconductors, nanocomposites, quantum dots, carbon nanotubes, and graphitic materials, along with novel synthetic strategies and details of their physicochemical properties. These materials are suitable for the photocatalytic conversion of CO2 into solar fuels and value‐added products. Also, photocatalysts are used to generate H2 via the water splitting reaction and are used to remove contamination. The elaboration of molecular systems and interfaces for the conversion of CO2 into energy‐rich molecules is an important technical and environmental challenge, because the abundance of CO2 in the atmosphere contributes significantly to the greenhouse effect. In this perspective, important research activities are directed toward the preparation of photocatalysts containing: (i) a photosensitizer unit, which initiates photochemical one‐electron transfer events, and (ii) a catalyst, which stores reducing equivalents to achieve multi‐electron reduction of CO2 and produce fuels.
This book presents a collection of twelve chapters written by researchers who are the leading experts in their fields of study. In their chapters they explain the strategies to overcome the challenges in photocatalytic functional materials for environmental remediation. The first chapter of this book is a succinct summary of the state‐of‐the‐art of titanium dioxide and carbon‐based nanomaterials for the photocatalytic degradation of organic dyes in wastewater. Chapters 2 and 3 focus more on the aspects of visible light driven photocatalysts and their impact on energy and environmental applications. Chapters 4, 5, and 6 explore the plasmonic effect of the nanocomposites. Chapters 7, 8, and 9 discuss the details of the multifunctional hybrid materials and their applications. Chapters 10 and 11 address the key challenges in the fabrication of photocatalysts and give possible strategies to improve the efficiency of the photocatalysts. Chapter 12 describes the reduction of CO2 using functionally active materials.
Finally, we would like to express our sincere thanks to all the authors for sharing their knowledge on photocatalytic functional materials for environmental remediation. They have made it possible to produce this book for the benefit of those interested in visible light harvesting by functional materials and applications of this process. We are very grateful to all the authors whose chapters make this a valuable book.
Dr. Alagarsamy Pandikumar (Editor)
Scientist
Functional Materials Division
CSIR‐Central Electrochemical Research Institute
Karaikudi‐630 003, Tamil Nadu, India
Dr. Kandasamy Jothivenkatachalam (Editor)
Professor
Department of Chemistry
Bharathidasan Institute of Technology
Anna University (UCE – BIT Campus)
Tiruchirappalli‐620 024, Tamil Nadu, India