A simple method for the preparation of titania hollow sphere

被引：71

作者：

Ao, Yanhui ^{[1
,2
,3
]}

Xu, Jingjing ^{[1
,2
,3
]}

Fu, Degang ^{[1
,2
,3
]}

Yuan, Chunwei ^{[1
,2
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 210096, Peoples R China

[2] Southeast Univ, State Key Lab Bioelect, Nanjing 210096, Peoples R China

[3] Southeast Univ Suzhou, Lab Environm & Biosafety, Res Inst, Suzhou 215123, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 15期

基金：

中国国家自然科学基金;

关键词：

hollow sphere; titania; photocatalysis; carbon sphere; methylene blue;

D O I：

10.1016/j.catcom.2008.07.020

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：

Anatase titania hollow spheres were prepared using hydrothermally prepared carbon spheres as template. The prepared hollow spheres were characterized by XRD, BET, TEM, XPS and diffuse reflectance spectrum (DRS). The photocatalytic activity of the as-prepared titania hollow spheres was determined by degradation of MB in aqueous solution, and was compared to commercial P25 titania. It was revealed that the photocatalytic activity of the titania hollow spheres enhanced a lot. The apparent rate constant of the titania hollow spheres is almost 6 times as that of P25 titania. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2574 / 2577

页数：4

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