Recent Advancements in Photocatalytic Nanocomposites

Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials Pub Date : 1900-01-01 DOI:10.4018/978-1-7998-1530-3.ch006

A. Shajkumar, Ananthakumar Ramadoss

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Abstract

Photocatalysts utilize light energy or photons to catalyze a reaction. The most significant characteristics of a photocatalyst lies in its ability to simultaneously oxidize a donor molecule and reduce an acceptor through the electron-hole pair generated upon excitation. With the emergence of nanotechnology, the utilization of nanomaterials for their photocatalytic properties has gained a new pace. TiO2 and ZnO nanoparticles are exploited widely for their photocatalytic properties. The recent trends concentrate on devising composite nanostructures that utilize both the properties of the photocatalyst and supporting materials such as graphene, carbon nanotubes, or noble metal nanoparticles to enhance the photocatalytic properties of the semiconductor metal oxide. The main areas of application of such structures lie in the field of water purification and energy harvesting. This chapter outlines an overview of the photocatalytic process and the existing technologies followed by the application areas and the recent advancements lying in that area.

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光催化纳米复合材料的研究进展

光催化剂利用光能或光子催化反应。光催化剂最显著的特性在于它能够通过激发后产生的电子-空穴对同时氧化给体分子和还原受体分子。随着纳米技术的出现，对纳米材料光催化性能的利用取得了新的进展。二氧化钛和氧化锌纳米粒子因其光催化性能而被广泛利用。最近的趋势集中在设计复合纳米结构，利用光催化剂和支撑材料(如石墨烯、碳纳米管或贵金属纳米颗粒)的特性来增强半导体金属氧化物的光催化性能。这种结构的主要应用领域是水净化和能量收集领域。本章概述了光催化过程和现有技术，然后是应用领域和该领域的最新进展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials

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