Facile fabrication of Bi2O3/TiO2-xNx nanocomposites for excellent visible light driven photocatalytic hydrogen evolution

被引：93

作者：

Naik, Brundabana ^{[1
]}

Martha, Satyabadi ^{[1
]}

Parida, K. M. ^{[1
]}

机构：

[1] Inst Minerals & Mat Technol CSIR, Colloids & Mat Chem Dept, Bhubaneswar 751013, Orissa, India

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 04期

关键词：

Hydrogen fuel; N doped TiO2; Bi2O3; Nanocomposites; Visible light; Water splitting; TIO2; WATER; BI2O3;

D O I：

10.1016/j.ijhydene.2010.11.104

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：

Mesoporous Bi2O3/TiO2-xNx nanocomposites (BiNT) were synthesized by soft chemical template free homogeneous co-precipitation technique. XRD, XPS, TEM, UV-Vis DRS and photoluminescence studies were adapted to determine the structural, electronic and optical properties. The photocatalytic activities of the catalysts were evaluated for water splitting to generate clean hydrogen fuel under visible light irradiation (lambda >= 400 nm). BiNT-400 catalyst showed highest results towards hydrogen production (198.4 mu mol/h) with an apparent quantum efficiency of 4.3%. The pronounced activity of BiNT-400 sample towards hydrogen production was well consistent with high crystallinity, large surface area, proper excitation by N doping and Bi2O3 sensitization. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

引用

页码：2794 / 2802

页数：9