Photocatalytic reforming of biomass: A systematic study of hydrogen evolution from glucose solution

被引：290

作者：

Fu, Xianliang ^{[1
]}

Long, Jinlin ^{[1
]}

Wang, Xuxu ^{[1
]}

Leung, Dennis Y. C. ^{[2
]}

Ding, Zhengxin ^{[1
]}

Wu, Ling ^{[1
]}

Zhang, Zizhong ^{[1
]}

Li, Zhaohui ^{[1
]}

Fu, Xianzhi ^{[1
]}

机构：

[1] Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Res Inst Photocatalysis, Fuzhou 350002, Peoples R China

[2] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 22期

基金：

中国国家自然科学基金;

关键词：

Photocatalytic reforming; Hydrogen; Glucose; Biomass; Titania;

D O I：

10.1016/j.ijhydene.2008.07.068

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：

The present work reports the renewable hydrogen production by an anaerobic photocatalytic reforming of glucose, a compound that could be derived from biomass, over noble-metal-loaded TiO2 photocatalyst. The effects of reaction parameters, such as reaction atmosphere, noble-metal loading, amount of loaded platinum, crystalline phase of TiO2, initial concentration of glucose, and the pH value of the reaction solution on the hydrogen evolution are systematically investigated. The results show that the photocatalytic H-2 production from the glucose solution can be significantly enhanced by depositing various noble metals on anatase TiO2, and the hydrogen evolution rates are decreased in the order Pd > Pt > Au approximate to Rh > Ag approximate to Ru. For Pt/TiO2 the greatest photocatalytic reforming activity of glucose occurs as the Pt loading content of ca. 1.0 wt.%. The presence of O-2 and acid strongly inhibits the hydrogen production. The effect of initial concentration of glucose on the hydrogen evolution rate could be well represented by the Langmuir-Hinshelwood kinetics model. A probable mechanism for the photocatalytic reforming process was proposed and discussed. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：6484 / 6491

页数：8

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