Solvothermal synthesis of BiOI hierarchical spheres with homogeneous sizes and their high photocatalytic performance

被引：57

作者：

Shi, Xiaojing ^{[1
]}

Chen, Xiliang ^{[1
]}

Chen, Xin ^{[2
]}

Zhou, Shaomin ^{[1
]}

Lou, Shiyun ^{[1
]}

机构：

[1] Henan Univ, Key Lab Special Funct Mat, Minist Educ, Kaifeng 475004, Peoples R China

[2] Henan Univ, Coll Chem & Chem Engn, Kaifeng 475004, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 68卷

关键词：

Nanoparticles; Nanocomposites; Microstructure; Optical materials and properties;

D O I：

10.1016/j.matlet.2011.10.063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sphere-like hierarchical bismuth oxyiodides (BiOIs) were synthesized by using polyvinylpyrrolidone (PVP) assisted solvothermal synthesis approach, and characterized by X-ray diffraction/photoelectron spectroscopy and scanning/transmitting electron microscopy. The prepared hierarchical microspheres (HMs) possess a tetragonal phase and are composed of primary plate-like nanostructures with a thickness of several tens nanometers. Visible light photocatalytic activities (VLPAs) of BiOI HMs on the degradation of methyl orange (MO) were studied at room temperature. Twenty minutes later. VLPAs of the HMs reached up to about 80% whereas those of the corresponding conventional powders (CPs) were less than 20%. The high VLPAs of the HMs would have a potential photocatalytic application in environmental purification. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：296 / 299

页数：4

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