Hydrothermal synthesis and photoelectric properties of BiVO4 with different morphologies: An efficient visible-light photocatalyst

被引：149

作者：

Fan, Haimei ^{[1
]}

Wang, Dejun ^{[1
]}

Wang, Lingling ^{[1
,3
]}

Li, Haiyan ^{[1
]}

Wang, Ping ^{[2
]}

Jiang, Tengfei ^{[1
]}

Xie, Tengfeng ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Theoret & Computat Chem, Changchun 130012, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

[3] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 17期

基金：

中国国家自然科学基金;

关键词：

BiVO4; Monoclinic; Photocatalysis; Photovoltage; MONOCLINIC BISMUTH VANADATE; ASSISTED SYNTHESIS; NANOCRYSTALS; TEMPERATURE; DEGRADATION;

D O I：

10.1016/j.apsusc.2011.04.025

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Different morphologies of monoclinic BiVO4 with smaller size were hydrothermal synthesized by simply adjusting the amount of surfactant (polyvinyl pyrrolidone PVP K30) added. The detailed field emission scanning electron microscope (FESEM) analysis revealed that the amount of PVP added could significantly affect the morphology and size of BiVO4. Their photocatalytic activities were evaluated by the decolorization of methylene blue (MB) aqueous solution under visible-light irradiation (lambda > 400 nm), and the as-prepared sample with well-assembled flower-like morphology showed a much higher photocatalytic activity due to larger specific surface area and higher separation efficiency of photo-induced carriers. The relationship between the behavior of photo-induced carriers and photocatalytic activity was studied using the surface photovoltage spectroscopy (SPS) and corresponding phase spectra. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：7758 / 7762

页数：5

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