Bi_2S_3基异质结型复合半导体光催化剂的合成及其性能
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- 英文论文题名：Preparation and performs of Bi_2S_3 heterojunction photocatalysts
- 论文作者：高霖 ; 张旭红 ; 吴秀明 ; 张欣 ; 于海涛
- 英文论文作者：Lin Gao ; Xuhong Zhang ; Xiuming Wu ; Xin Zhang ; Haitao Yu ; College of Chemistry and Materials Science ; Hebei Normal University
- 年：2016
- 作者机构：河北师范大学化学与材料科学学院;
- 论文关键词：可见光催化 ; 异质结 ; 光催化机理
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十二分会：能源纳米材料物理化学
- 语种：中文
- 分类号：O643.36;O644.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十二分会 ; 能源纳米材料物理化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：153k
- 原文格式：D
- 会议级别：全国
摘要
由于可见光在太阳光谱中所占比例最大,可见光下光解水及光降解有机污染物越来越引起研究者的兴趣。~1Bi_2S_3因其独特的电子结构和优良的可见光吸收性能,近年来受到人们的广泛关注。~2我们设计制备了一系列分布均匀、能级匹配的硫化铋基异质结型复合半导体光催化剂。~3通过对亚甲基蓝的降解来研究其光催化效率。在可见光的照射下,硫化铋基异质结型复合半导体光催化剂对于亚甲基蓝的降解率最高达到98.85%,比单纯的Bi_2S_3降解率高33.28%。我们还探讨了材料的微观结构、异质结的构成和光催化性能之间的关系。开展硫化铋基异质结型复合半导体光催化剂光催化活性及机理研究。
Owing to the visible light accounts for the largest proportion of the solar spectrum, great interests in photocatalysis have been focused on photocatalytic splitting of water or photodegradation of organic pollutants under visible light irradiation.Bi_2S_3 with a narrow bandgap of 1.3 eV, has received great attention as a potential visible light photocatalyst. In this work, a series of bismuth-based composite photocatalysts withtightly interface, evenly distributed and matching energy level, was designed and prepared by wet chemistry method..We demonstrated that the synthesized nanoparticles exhibit photocatalytic efficiency towards the degradation of methylene blue(MB). 98.85% of MB can be decomposed by the heterojunction photocatalysts under visible light irradiation, which 33.28% higher than pure photocatalyst. We not only discussed the relationship of microstructure, the composition of the heterojunction and the catalytic performance, but also conducted the research of the degradation mechanism and the photocatalytic activity of the heterojunction photocatalysts.
Owing to the visible light accounts for the largest proportion of the solar spectrum, great interests in photocatalysis have been focused on photocatalytic splitting of water or photodegradation of organic pollutants under visible light irradiation.Bi_2S_3 with a narrow bandgap of 1.3 eV, has received great attention as a potential visible light photocatalyst. In this work, a series of bismuth-based composite photocatalysts withtightly interface, evenly distributed and matching energy level, was designed and prepared by wet chemistry method..We demonstrated that the synthesized nanoparticles exhibit photocatalytic efficiency towards the degradation of methylene blue(MB). 98.85% of MB can be decomposed by the heterojunction photocatalysts under visible light irradiation, which 33.28% higher than pure photocatalyst. We not only discussed the relationship of microstructure, the composition of the heterojunction and the catalytic performance, but also conducted the research of the degradation mechanism and the photocatalytic activity of the heterojunction photocatalysts.
引文
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[3]Fengjuan,Chen.;Yali,Cao.;Dianzeng,Jia.Journal of Colloid and Interface Science.2013,404:110.
[2]Wu,T.;Zhou,X.G.;Zhang,H.;Zhong,X.H.Nano.Res.2010,3:379.
[3]Fengjuan,Chen.;Yali,Cao.;Dianzeng,Jia.Journal of Colloid and Interface Science.2013,404:110.