Cu-grafted TiO2 photocatalysts: effect of Cu on the action spectrum of composite materials

被引：8

作者：

Kovalevskiy, Nikita S. ^{[1
]}

Lyulyukin, Mikhail N. ^{[1
]}

Kozlov, Denis, V ^{[1
]}

Selishchev, Dmitry S. ^{[1
]}

机构：

[1] Russian Acad Sci, GK Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia

来源：

MENDELEEV COMMUNICATIONS | 2021年 / 31卷 / 05期

关键词：

photocatalytic oxidation; visible light; Cu-grafted TiO2; action spectrum; interfacial charge transfer; DEGRADATION; NANOCOMPOSITES; OXIDATION; WATER;

D O I：

10.1016/j.mencom.2021.09.017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper describes a simple technique for the modification of titania with copper to enhance its photocatalytic performance. In addition to the absorption of UV light resulted in band-to-band excitation of electrons, TiO2 grafted with copper species absorbs radiation in the visible region of spectrum, and it is able to completely oxidize volatile organic pollutants both under UV and visible light. The action spectra of pristine and Cu-grafted TiO2 photocatalysts are measured and discussed to elucidate the reasons for appearance of the activity under visible light.

引用

页码：644 / 646

页数：3

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