title: An efficient p-n heterojunction photocatalyst constructed from a coordination polymer nanoplate and a partically reduced graphene oxide for visible-light hydrogen production.
abstract: A new p-n heterojunction photocatalyst has been synthesized successfully through chemical-bond-mediated combination of coordination polymer nanoplates (CPNPs) and partially reduced graphene oxide (PRGO) with a simple colloidal blending process. Photocatalytic H2 production by the p-n heterojunction photocatalyst PRGO/CPNP was investigated under visible-light irradiation, which illustrates that PRGO/CPNP exhibits a much higher photocatalytic H2 production rate than neat the CPNPs. The improvement of this photocatalytic property can be attributed to the inner electrical field formed in the p-n heterojunction, which impedes recombination of photogenerated electrons and holes. In PRGO/CPNP, the existence of the p-n heterojunction has been confirmed by electrochemical methods clearly. For PRGO/CPNP, the reductive degree of the PRGO has a great influence on the H2 production rate and an ideal condition to get a PRGO/CPNP photocatalyst with higher performance has been obtained.
authors.affiliation: Department of Chemistry, College of Science, Northeast University, Shenyang, Liaoning Province, 110819 (P. R. China).
authors.forename: Xinxin
authors.initials: X
authors.lastname: Xu
authors.affiliation: Department of Chemistry, College of Science, Northeast University, Shenyang, Liaoning Province, 110819 (P. R. China).
authors.forename: Tingting
authors.initials: T
authors.lastname: Lu
authors.affiliation: Department of Chemistry, College of Science, Northeast University, Shenyang, Liaoning Province, 110819 (P. R. China). xxliu@mail.neu.edu.cn.
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Bohai University, Jinzhou, Liaoning Province, 121013 (P. R. China). wangxl@bhu.edu.cn.
authors.forename: Xiuli
authors.initials: X
authors.lastname: Wang
keywords: coordination effects; graphene; hydrogen; p-n heterojunctions; photocatalytisis