钛网上CdS纳米微球的制备及可见光下产氢性能研究  

Preparation of CdS Nanospheres on Titanium Meshes with Photocatalytic H_(2) Evolution under Visible Light

作　　者：陈志强[1] 崔磊[1,2] 董晶[1,2] 李海霞[1] 夏炜炜 CHEN Zhiqiang;CUI Lei;DONG Jing;LI Haixia;XIA Weiwei(College of Information and Technology,Suqian University,Suqian 223800,China;College of Physics Science and Technology,Yangzhou University,Yangzhou 225002,China)

机构地区：[1]宿迁学院信息工程学院,宿迁223800 [2]扬州大学物理科学与技术学院,扬州225002

出　　处：《硅酸盐通报》2024年第2期727-733,共7页Bulletin of the Chinese Ceramic Society

基　　金：江苏省六大人才高峰项目(XCL227);江苏省高校“青蓝工程”自助(20210310);宿迁市重点实验室资助(M202109);宿迁学院多功能材料研发平台(2021pt04);宿迁学院科技创新团队资助;宿迁学院江苏省家禽智慧养殖与智能装备工程研究中心开放基金资助;江苏省航空发动机用钛基复合材料研发创新平台。

摘　　要：为了提高催化剂的光催化产氢能力,本文采用简单的水热法,在处理后的钛网表面生长了CdS纳米微球。利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线光电子能谱(XPS)等测试手段对样品的成分、结构、形貌进行了表征,并研究了其光电化学性能及可见光下光催化性能。结果表明,钛网上生长的CdS微球由纳米棒组装而成,通过缺陷调控,Cd/S物质的量之比为1∶1(CdS-1)的样品具有良好的光电响应,在零偏压下最大光电流约为140μA,可见光下的产氢率可达212.6μmol·h^(-1)·cm^(-2),并且方便回收,是一种理想的光催化产氢材料。It is an interesting topic to improve the photocatalytic H_(2) evolution activities of catalysts.In this parper,CdS nanospheres on titanium meshes have been synthesized by a simple hydrothermal method.The composition,microstructure and morphology of samples were investigated using X-ray diffractometer(XRD),scan electron microscopy(SEM),transmission electron microscope(TEM)and X-ray photoelectron spectroscopy(XPS).And the photoelectrochemical properties and photocatalytic properties under visible light were studied.The results show that,each CdS nanosphere on titanium meshes is self-assembled with nanorods.Then,the samples were used as photoelectrochemical photoanodes and photocatalytic water-splitting processes,the sample with a Cd/S amount of substance ratio of 1∶1(CdS-1)has a good photoelectric response,and has a maximal photocurrent of~140μA.At the same time,the results show that the sample has a good H_(2) evolution activity with the rate of 212.6μmol·h^(-1)·cm^(-2) and recycling convenient,reusable,which can be an ideal photocatalyst.

关 键 词：水热法 缺陷调控 钛网 CdS纳米微球 光电化学性能 光催化产氢 

分 类 号：O643[理学—物理化学] O474[理学—化学]