Low-temperature synthesis of mesoporous TiO2 photocatalyst with self-cleaning strategy to remove organic templates

被引：21
作者：
Chu, Sheng [1 ,2 ]
Luo, Leilei [1 ,2 ]
Yang, Juncheng [1 ,2 ]
Kong, Fei [1 ,2 ]
Luo, Si [1 ,2 ]
Wang, Ying [1 ,2 ]
Zou, Zhigang [1 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Eco Mat & Renewable Energy Res Ctr ERERC, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 24期
关键词：
Titania; Template; Porous materials; Solar energy materials; Photocatalysis; SUPERCRITICAL-FLUID EXTRACTION; SIMULATED SUNLIGHT IRRADIATION; SOL-GEL METHOD; SURFACTANT TEMPLATE; TITANIUM-DIOXIDE; MCM-41; DEGRADATION; PRECURSORS; SBA-15;
D O I：
10.1016/j.apsusc.2012.06.007
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：
A novel low-temperature method integrated solvothermal and self-cleaning technique has been developed to prepare mesoporous TiO2 photocatalyst using triblock copolymers P123 as templates. The organic templates could be removed completely by the self-cleaning strategy under simulated sunlight irradiation. The product is characterized by FTIR, TG, XRD, N-2 adsorption-desorption isotherms and TEM. The mild condition of the method is advantageous to retain the mesostructure compared with the calcination procedure. Further study indicates that the sample displays a higher photocatalytic activity for MO degradation than that of calcined sample, which could be attributed to its higher surface area, smaller crystal size and larger surface hydroxyl content. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码：9664 / 9667
页数：4
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