Preparation and photocatalytic property of LiCr(WO4)2

被引：11

作者：

Lv, Jun ^{[1
,2
,4
]}

Zhao, Zongyan ^{[1
,3
]}

Li, Zhaosheng ^{[1
,2
]}

Ye, Jinhua ^{[4
]}

Zou, Zhigang ^{[1
,3
]}

机构：

[1] Natl Lab Solid State Microstruct, ERERC, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210093, Peoples R China

[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[4] Natl Inst Mat Sci, PCMC, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 485卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

LiCr(WO4)(2); Photocatalytic activity; Electronic structure; VISIBLE-LIGHT; RUO2-LOADED PBWO4; WATER; HYDROGEN; OXIDE; DECOMPOSITION; O-2; H-2;

D O I：

10.1016/j.jallcom.2009.05.090

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new photocatalyst LiCr(WO4)(2) was synthesized via a polymer complex method and was characterized by X-ray diffraction, BET measurement, UV-vis diffuse reflectance spectra and photocatalytic experiments for H-2 and O-2 evolution. The crystal model of LiCr(WO4)(2), including lattice constants and atomic position parameters, was obtained by Rietveld refinement of powder X-ray diffraction data The photocatalytic evaluation measurements showed that LiCr(WO4)(2) exhibits the ability for H-2 evolution from an aqueous methanol solution and for O-2 evolution from an aqueous AgNO3 solution under ultraviolet and visible light irradiation. The mechanism for H-2 and O-2 evolution over LiCr(WO4)(2) photocatalyst was further investigated by density functional theory calculations and was discussed from the view of electronic structure point. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：346 / 350

页数：5

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