Cu_2ZnSnS_4结构调控与光催化产氢性能研究
详细信息 查看官网全文
- 英文论文题名：Structure Regulation and Photocatalytic Hydrogen Production Performance of Cu_2ZnSnS_4
- 论文作者：周文辉 ; 常志显 ; 王继磊 ; 陈小艳 ; 武四新
- 英文论文作者：Wen-Hui Zhou ; Zhi-Xian Chang ; Ji-Lei Wang ; Xiao-Yan Chen ; Si-Xin Wu ; the Key Laboratory for Special Functional Materials of MOE ; Henan University
- 年：2016
- 作者机构：河南大学特种功能材料重点实验室;
- 论文关键词：铜锌锡硫 ; 结构调控 ; 光催化产氢
- 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：TQ116.2;O643.36
- 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：164k
- 原文格式：D
- 会议级别：全国
摘要
高性能的光催化剂是获得高效、稳定催化产氢能力的关键。作为一种新出现的可见光催化剂,Cu_2ZnSnS_4(CZTS)在催化产氢领域受到了极大的关注。我们在研究CZTS催化产氢过程中,首次发现CZTS产氢活性具有相依赖性,即锌黄锡矿结构CZTS比纤锌矿结构CZTS具有更高的产氢活性[1]。在此工作基础上,我们通过高温重结晶实现了锌黄锡矿CZTS催化产氢活性的调控[2]。针对CZTS表面缺陷导致光生载流子复合严重的问题,通过与其它硫属化合物构建异质结构,有望获得高催化产氢活性和稳定性的CZTS基催化剂。
High performance photocatalyst is the key for photocatalytic hydrogen production with high efficiency and stability. As a kind of new emerging photocatalyst, Cu_2ZnSnS_4(CZTS) has received considerable attention in the field of photocatalytic H_2 production. We found CZTS exhibited apparently phase-dependent photocatalytic H_2 evolution under visible light, namely Kesterite CZTS exhibits superior H_2 evolution performance than that of wurtzite CZTS. Furthermore, the photocatalytic H_2 evolution performance also could be controlled by high temperature recrystallization of CZTS. In view of carriers recombination caused by surface defects, CZTS based photocatalyst with high H_2 yield and stability could be obtained via construction of heterostructures with other chalcogenides.
High performance photocatalyst is the key for photocatalytic hydrogen production with high efficiency and stability. As a kind of new emerging photocatalyst, Cu_2ZnSnS_4(CZTS) has received considerable attention in the field of photocatalytic H_2 production. We found CZTS exhibited apparently phase-dependent photocatalytic H_2 evolution under visible light, namely Kesterite CZTS exhibits superior H_2 evolution performance than that of wurtzite CZTS. Furthermore, the photocatalytic H_2 evolution performance also could be controlled by high temperature recrystallization of CZTS. In view of carriers recombination caused by surface defects, CZTS based photocatalyst with high H_2 yield and stability could be obtained via construction of heterostructures with other chalcogenides.
引文
[1]Chang,Z.X.;Zhou,W.H.;Kou,D.X.;Zhou,Z.J.;Wu S.X.Chem.Commun.2014,50(84):12726.
[2]Chang,Z.X.;Chong,R.F.;Meng,Y.N.;Zhou,W.H.;Kou,D.X.;Zhou,Z.J.;Wu S.X.Int.J.Hydrogen Energ.2015,40(39):13456.
[2]Chang,Z.X.;Chong,R.F.;Meng,Y.N.;Zhou,W.H.;Kou,D.X.;Zhou,Z.J.;Wu S.X.Int.J.Hydrogen Energ.2015,40(39):13456.