Arrayed porous iron-doped TiO2 as photoelectrocatalyst with controllable pore size

被引：36

作者：

Lei, Jianfei ^{[1
]}

Li, Xiaoping ^{[1
,2
,3
]}

Li, Weishan ^{[1
,2
,3
]}

Sun, Fengqiang ^{[1
,2
,3
]}

Lu, Dongsheng ^{[1
,2
,3
]}

Yi, Jin ^{[1
]}

机构：

[1] S China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China

[2] S China Normal Univ, Guangdong Higher Educ Inst, Key Lab Electrochem Technol Energy Storage & Powe, Guangzhou 510006, Guangdong, Peoples R China

[3] S China Normal Univ, Minist Educ, Engn Res Ctr Mat & Technol Electrochem Energy Sto, Guangzhou 510006, Guangdong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Iron-doped TiO2; Porous arrays; Preparation; Photoelectrocatalysis; PHOTOCATALYTIC ACTIVITY; HYDROGEN GENERATION; FABRICATION; LAYER;

D O I：

10.1016/j.ijhydene.2011.03.121

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：

Arrayed porous iron-doped TiO2 with controllable pore size was prepared by using polystyrene spheres and its structure, morphology, composition and photoelectrochemical properties were characterized with X-ray diffraction, scanning electron microscope, inductively coupled plasma-atomic emission spectrometer and electrochemical methods. It is found that the photoelectrochemical properties of the arrayed porous TiO2 can be improved by doping adequate amount of iron in the lattice of TiO2 and the sample doped with 0.01 wt% Fe (based on Ti) exhibits the best photoelectrochemical performance. With doping 0.01 wt% Fe in TiO2, the photocurrent density of the sample is improved from 2.0 mu A cm(-2) to 10.0 mu A cm(-2) and its flat-band potential shifts from -0.38 V to -0.55 V (vs. SCE). Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：8167 / 8172

页数：6

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