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

被引：105

作者：

Chen, Jie ^{[1
]}

Zhao, Daming ^{[1
]}

Diao, Zhidan ^{[1
]}

Wang, Miao ^{[1
]}

Shen, Shaohua ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China

来源：

SCIENCE BULLETIN | 2016年 / 61卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Graphitic carbon nitride; Ferrites; Photocatalytic water splitting; Solar hydrogen conversion; BI-FUNCTIONAL ELECTROCATALYSTS; OXYGEN EVOLUTION; FACILE SYNTHESIS; WATER; REDUCTION; COFE2O4; G-C3N4; NANOCOMPOSITES; STRATEGY; NIFE2O4;

D O I：

10.1007/s11434-016-0995-0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

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-C3N4) were greatly promoted with the earth-abundant ferrites (Co, Ni)Fe2O4 modification. CoFe2O4 was further demonstrated to be a better modifier for g-C3N4 as compared to NiFe2O4, due to the more efficient charge carrier transfer as well as superior surface oxidative catalytic activity. When together loading CoFe2O4 and reductive hydrogen production electrocatalyst Pt onto g-C3N4, the obtained Pt/g-C3N4/CoFe2O4 photocatalyst achieved visible-light (lambda > 420 nm) hydrogen production rate 3.5 times as high as Pt/g-C3N4, with the apparent quantum yield reaching 3.35 % at 420 nm.

引用

页码：292 / 301

页数：10

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