Efficient Methylene Blue Removal over Hydrothermally Synthesized Starlike BiVO4

被引：139

作者：

Sun, Songmei ^{[1
]}

Wang, Wenzhong ^{[1
]}

Zhou, Lin ^{[1
]}

Xu, Haolan ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2009年 / 48卷 / 04期

关键词：

VISIBLE-LIGHT IRRADIATION; TIO2; THIN-FILMS; PHOTOCATALYTIC PROPERTIES; WATER; TEMPERATURE; EVOLUTION; HYDROGEN; O-2; H-2;

D O I：

10.1021/ie801516u

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Nanoplate-stacked starlike BiVO4 products have been successfully synthesized by a hydrothermal method, where a water/ethanol mixture was the solvent and ethylenediamine tetraacetic acid (EDTA) was the chelating agent. The molar ratio of EDTA to Bi3+ was found to play an important role in the formation of this morphology. These starlike BiVO4 samples exhibited a high visible-light-driven photocatalytic efficiency. For the degradation of methylene blue (MB) under visible-light irradiation (lambda > 420 nm), about 91% of the MB was degraded within 25 min. This is much higher than. for BiVO4 samples prepared by solid-state reaction (bulk BiVO4) and other hydrothermal synthesis methods. The reasons for the differences in the photocatalytic activities of these BiVO4 samples were further investigated.

引用

页码：1735 / 1739

页数：5

共 27 条

[1] PHOTOELECTROLYSIS AND PHYSICAL-PROPERTIES OF SEMICONDUCTING ELECTRODE WO3 [J].