基于上转换发光的可见/近红外光催化研究现状及展望

CIESC Journal

基于上转换发光的可见/近红外光催化研究现状及展望

刘恩周1，樊君1，胡晓云2，侯文倩1

1西北大学化工学院，陕西西安 710069；2西北大学物理学系，陕西西安 710069

出版日期:2011-12-05 发布日期:2012-03-02

Progress of visible-light and near-infrared-driven photocatalysis based on upconversion luminescence

LIU Enzhou1，FAN Jun1，HU Xiaoyun2，HOU Wenqian1

1School of Chemical Engineering，Northwest University，Xi’an 710069，Shaanxi，China；2Department of Physics，Northwest University，Xi’an 710069，Shaanxi，China

Online:2011-12-05 Published:2012-03-02

摘要/Abstract

摘要：

上转换发光材料可将低能光子转换为高能光子，对于太阳能的转化利用具有潜在的应用前景。本文以TiO₂为例，介绍了上转换发光在可见/近红外光催化领域的研究背景，说明了光能吸收、光能转换、光能转移、表面反应的光能利用机制，总结了上转换发光的研究进展。同时重点分析了稀土上转换发光在可见/近红外光催化领域的研究现状，阐述了上转换发光与其它改性方法协同提高TiO₂光催化效率的基本原理。最后提出了基于复合上转换发光的光催化研究思路，展望了上转换发光在光催化中的应用前景。

Abstract:

Up-converting phosphors（UCPs）can effectively convert longer wavelength radiation into shorter wavelength fluorescence and exhibit application potential in improving the light energy utilization，especially the sunlight with a longer wavelength. In this paper， the research background of the photocatalysis based on UCPs is introduced with TiO₂ as an example，the advances of research on UCPs are summarized，and the mechanism of light energy utilization is presented，including light absorption，light conversion，light transfer，and surface reaction. Meanwhile，the visible-light and near-infrared-driven photocatalysis based on rare-earth UCPs are analyzed in detail，and the mechanism for improving TiO₂ catalytic activity using UCPs and other methods are explained. Additionally，a research approach to improve TiO₂ photocatalytic efficiency by UCPs composite of is presented，and the application perspective of photocatalysis based on upconversion luminescence is discussed as well.

刘恩周1，樊君1，胡晓云2，侯文倩1. 基于上转换发光的可见/近红外光催化研究现状及展望[J]. CIESC Journal.

LIU Enzhou1，FAN Jun1，HU Xiaoyun2，HOU Wenqian1. Progress of visible-light and near-infrared-driven photocatalysis based on upconversion luminescence[J]. .