Sol-gel Modified TiO2 Powder Composite Films for Photoelectrochemical Hydrogen Generation

被引：1
作者：
Sun, Yan [1 ]
Yan, Kangping [2 ]
机构：
[1] Chengdu Univ, Sch Mech Engn, Chengdu 610106, Peoples R China
[2] Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
来源：
JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES | 2016年 / 19卷 / 02期
关键词：
TiO2; P25; sol-gel; photoelectrochemical; hydrogen production; ELECTROPHORETIC DEPOSITION; PHOTOCATALYTIC ACTIVITY; NANOTUBE ARRAYS; STAINLESS-STEEL; WATER; ANODIZATION; PHOTOANODES; SUBSTRATE;
D O I：
10.1515/jaots-2016-0223
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：
Sol-gel modified TiO2 powder composite films were prepared as photoeletrode for the hydrogen generation in a two-compartment photoelectrochemical cell. Commercial Degussa P25 TiO2 powders have been successfully incorporated into TiO2 sol prepared by sol-gel method using tetrabutyl orthotitanate as precursor material to form thick TiO2 films via coating on the indium-tin oxide (ITO) conductive glass. With assistance of polyethylene glycol (PEG), the macroporous structure TiO2 film was obtained after calcination. The film samples were characterized by XRD, SEM and UV-Vis spectrophotometer. The XRD result indicated that TiO2 films were composed of the anatase-rutile mischcrystal phase. Furthermore, the coating layer had a great effect on the photoelectrochemical properties and photocatalytic activity. The experimental results showed that TiO2-P25/ITO film with 5 coating layers demonstrated a maximum hydrogen production rate, which implied that TiO2-P25/ITO film prepared by this convenient and economic method is a promising photocatalyst for efficient hydrogen production.
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页码：376 / 380
页数：5
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