表面活性剂增强Bi_2S_3纳米颗粒光催化活性的研究  

Effects of surfactant on the photocatalytic degradation activity of Bi_2S_3 nanoparticles

作　　者：王巧玲[1] 黄国芳 

机构地区：[1]长沙环境保护职业技术学院,湖南长沙410004 [2]长沙南方职业技术学院,湖南长沙410208

出　　处：《湖南农业大学学报（自然科学版）》2015年第6期666-669,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南省环境保护厅项目(湘财建指(2014)287号)

摘　　要：为开发高效的光催化材料,以利用太阳能来分解有机污染物,采用化学水浴沉积法制备Bi2S3纳米光催化材料,并分析其形貌、结构和光催化降解有机污染物的能力。结果表明:所制备的Bi2S3为表面粗糙的纳米颗粒;Bi2S3纳米颗粒对亚甲基蓝有较好的光催化降解效果,添加表面活性剂聚乙二醇(PEG)有助于Bi2S3纳米颗粒尺寸减小,增大颗粒比表面积,促进光生电子与空穴的有效分离,进一步增强其光催化活性。Bi2S3 nanomaterial was synthesized by the method of chemical bath deposition and its morphology, construction and capacity of degradation organic pollutant were tested. The results showed that Bi2S3 nanoparticles had rough surface and good photocatalytic degradation efficiency for methylene blue （MB）; The addition of surfactant polyethylene glycol （PEG） was conducive to decrease the size of Bi2S3, to increase the specific surface area of Bi2S3 and promote separation ofphotoinduced electrons and holes and enhance photocatalytic degradation activity of Bi2S3.

关 键 词：硫化铋 光催化活性 表面活性剂 聚乙二醇 有机污染物 

分 类 号：X592[环境科学与工程—环境工程]