Ferrites boosting photocatalytic hydrogen evolution over graphitic carbon nitride: a case study of(Co, Ni)Fe2O4 modification

被引：6

作者：

Jie Chen ^{[1
]}

Daming Zhao ^{[1
]}

Zhidan Diao ^{[1
]}

Miao Wang ^{[1
]}

Shaohua Shen ^{[1
]}

机构：

[1] International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University

来源：

ScienceBulletin | 2016年 / 61卷 / 04期

基金：

中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

Graphitic carbon nitride; Ferrites; Photocatalytic water splitting; Solar hydrogen conversion;

D O I：

暂无

中图分类号：

TQ116.2 [氢气]; O643.3 [催化];

学科分类号：

0817 ; 081705 ;

摘要：

The charge carrier separation and surface catalytic redox reactions are of primary importance as elementary steps in photocatalytic hydrogen evolution. In this study, both of these two processes in photocatalytic hydrogen evolution over graphitic carbon nitride(g-CN) were greatly promoted with the earth-abundant ferrites(Co,Ni)FeOmodification. Co FeOwas further demonstrated to be a better modifier for g-CNas compared to Ni FeO,due to the more efficient charge carrier transfer as well as superior surface oxidative catalytic activity. When together loading Co FeOand reductive hydrogen production electrocatalyst Pt onto g-CN, the obtained Pt/g-CN/Co FeOphotocatalyst achieved visible-light(λ>420 nm) hydrogen production rate 3.5 times as high as Pt/g-CN, with the apparent quantum yield reaching 3.35 % at 420 nm.

引用

页码：292 / 301

页数：10