Template-Free Synthesis and Photocatalytic Application of Rutile TiO2 Hierarchical Nanostructures

被引：66

作者：

Ge, M. ^{[1
]}

Li, J. W. ^{[1
]}

Liu, L. ^{[1
]}

Zhou, Z. ^{[2
,3
]}

机构：

[1] Nankai Univ, Tianjin Key Lab Environm Remediat & Pollut Contro, Tianjin 300071, Peoples R China

[2] Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China

[3] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2011年 / 50卷 / 11期

关键词：

AZO-DYE; TEMPERATURE SYNTHESIS; HYDROGEN-PEROXIDE; DEGRADATION; OXIDATION; SURFACES; NANORODS; ORANGE; PHOTOOXIDATION; FABRICATION;

D O I：

10.1021/ie1023113

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A simple template-free hydrothermal method was employed to synthesize flower-shaped single-crystal rutile TiO2 hierarchical nanostructures without calcination process. Scanning electron microscope and transmission electron microscope images show that rutile TiO2 nanostructures with diameters of 1-1.5 mu m are composed of nanorods with a wimble shape. The band gap of the as-prepared rutile TiO2 is about 3.02 eV by ultraviolet-visible absorption spectrum. The photocatalytic performance of the as-obtained samples as catalysts for Rhodamine B (RhB) degradation under simulated solar light was greatly enhanced with the assistance of a small amount of H2O2. In the H2O2-containing system, the as-prepared rutile TiO2 photocatalyst was more efficient in the photodegradation of RhB than commercial P25. The stability and recycle of the rutile TiO2/H2O2 system were also investigated.

引用

页码：6681 / 6687

页数：7

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