文献类型：期刊文献

英文题名：Synthesis of hollow core-shell CdS@TiO2/Ni2P photocatalyst for enhancing hydrogen evolution and degradation of MB

作者：Wu, Keliang[1,2];Wu, Pengcheng[1];Zhu, Junfang[2];Liu, Chang[1];Dong, Xuejun[1];Wu, Jianning[1];Meng, Guihua[1];Xu, Kangbo[1];Hou, Juan[1];Liu, Zhiyong[1];Guo, Xuhong[1,3]

机构：[1]Shihezi Univ, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Key Lab Mat Oriented Chem Engn Xinjiang Uygur Aut, Sch Chem & Chem Engn,Engn Res Ctr Mat Oriented Ch, Shihezi 832003, Xinjiang, Peoples R China;[2]Bayingoleng Vocat & Tech Coll, Dept Petr & Chem, Shihezi 841000, Xinjiang Uygur, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：360

起止页码：221

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20184906203907);WOS:【SCI-EXPANDED(收录号:WOS:000460964000024)】；

基金：This work was supported financially by funding from the National Natural Science Foundation of China (61704114, 51662036), Graduate student scientific research innovation projects in Xinjiang autonomous region (XJGRI2017046) and Open Foundation of Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bintuan (2016BTRC005).

语种：英文

外文关键词：Hollow core-shell; Hydrogen production; CdS@TiO2/Ni2P; Template

摘要：During the photocatalytic production of hydrogen gas, close interface with a catalyst is very important. We designed a noble-metal-free photocatalytic system that is spatially separated to produce hydrogen by high frequency visible light. We used a new type of a catalyst consisting of hollow core-shell CdS@TiO2/Ni2P structures prepared using sacrificial template method. Photocatalytic decomposition of water was tested using this catalyst. Hydrogen production yield using 420 nm light was 14.80 mmol/g after 2.5 h and using Xe lamp with AM1.5G filter was 34.78 mmol/g after 2.5 h. Hollow core shell CdS@TiO2/Ni2P particles were more stable than hollow core shell CdS@TiO2/Pt structures because TiO2 protected CdS from photo-corrosion. Combination of CdS and Ni2P increased absorption range of TiO2 at 720 nm. Holes and electrons produced during the photo-reaction can migrate to the CdS on the inside and to the Ni2P on the outside of the TiO2 protective coating. Such design exposes more surface, thus, increases hydrogen production.