Hydrothermal synthesis and photocatalytic performance of metal-ions doped TiO2

被引：82

作者：

Feng, Huajun ^{[1
]}

Zhang, Min-Hong ^{[1
]}

Yu, Liya E. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore

来源：

APPLIED CATALYSIS A-GENERAL | 2012年 / 413卷

关键词：

Metal-ions doped TiO2; Photocatalytic performance; Solar-light irradiation; Hydrothermal synthesis; VISIBLE-LIGHT RESPONSE; DEGRADATION; SYSTEMS;

D O I：

10.1016/j.apcata.2011.11.014

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：

Metal-ions doped TiO2 (M-TiO2) were synthesized using a hydrothermal method with a post-annealing process, including individual Ag+, Cu2+, Mn2+, Ce3+, Fe3+ and Zr4+ ions. Physical properties of the synthesized M-TiO2 were characterized including XRD pattern, BET surface area, diffuse reflectance spectra and visible-light photoactivity tests. Total photocatalytic performances of M-TiO2 were evaluated by degrading rhodamine b under whole solar-light irradiation with manganese-ions doped TiO2 (Mn-TiO2) showing the highest degradation efficiency. Compared to crystalline structure and visible-light photoactivity, BET surface area of M-TiO2 particles exhibits the most significant impacts, showing a positive correlation with the total photocatalytic performance of M-TiO2. Total photocatalytic efficiencies of Mn-TiO2 were further optimized through synthesis with 3% of Mn doping concentration, 180 degrees C of hydrothermal treatment and 450 degrees C of post-annealing temperature. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：238 / 244

页数：7

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