文献类型：期刊文献

中文题名：纳米BiVO_4的制备表征及光催化性能研究

英文题名：Preparation and photocatalytic property of nano-sized BiVO_4

作者：周建伟[1];黄建新[2];李洁[2];王金娜[2]

机构：[1]新乡学院化学化工学院;[2]新乡学院应用生物系

第一机构：新乡学院化学化工学院

年份：2009

卷号：31

期号：3

起止页码：169-172

中文期刊名：化学试剂

外文期刊名：Chemical Reagents

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：光催化降解;钒酸铋;半导体;可见光;亚甲基蓝

外文关键词：photocatalytic degradation; bismuth vanadate; semiconductor; visible light; methylene blue

摘要：以十二烷基苯磺酸钠(SDBS)为分散剂,采用水热合成法制备了纳米钒酸铋,采用红外光谱(FT-IR)、X射线衍射(XRD)、扫描电子显微镜(SEM)和紫外-可见光(UV-Vis)吸收光谱进行了结构表征。通过模型化合物亚甲基蓝的降解脱色实验研究了其光催化活性,考察了亚甲基蓝初始浓度、催化剂加量、pH等因素对降解率影响。结果表明,纳米BiVO4在可见光照射下具有良好的光催化性能,450 W高压汞灯光照2.0 h,可使浓度为10 mg/L亚甲基蓝溶液的降解率达90%。在环境水污染治理中有良好的应用前景。
Bismuth vanadate（BiVO4） nanoparticles were hydrothermally synthesized in the presence of sodium dodecylbenzene sulfonate（SDBS） used as the dispersant.FT-IR,XRD,SEM and UV-Vis diffuse reflection spectra were used to characterize the BiVO4 nanoparticles.Photodegradation of methylene blue（MB） under visible-light irradiation in aqueous solution was investigated by using the BiVO4 particles as a photocatalyst.The effect of initial concentration of methylene blue,the quantity of catalyst,the pH value and the light intensity on the degradation rate was studied.Test results indicated that the photocatalyst showed good activity under visible light irradiation for degradation of the dye solution.Under 2 h illumination using a 450 W high-pressure mercury lamp,the decolorizing rate of 10 mg/L methylene blue could reach 90% upon catalysis in the presence of 2.0 g/L BiVO4 catalyst.This method will have potential applications in many areas such as environmental protection.