Graphitic carbon nitride nanoribbon for enhanced visible-light photocatalytic H2 production

被引：29

作者：

Bu, Xiuming ^{[1
,2
]}

Bu, Yu ^{[1
]}

Yang, Siwei ^{[2
]}

Sun, Feng ^{[1
]}

Tian, Linfan ^{[2
]}

Peng, Zheng ^{[2
]}

He, Peng ^{[2
]}

Sun, Jing ^{[2
]}

Huang, Tao ^{[2
]}

Wang, Xianying ^{[1
]}

Ding, Guqiao ^{[2
]}

Yang, Junhe ^{[1
]}

Xie, Xiaoming ^{[2
]}

机构：

[1] Univ Sch Sci & Technol, Sch Mat Sci & Engn, Shanghai 20093, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Sch Key Lab Funct Mat Informat, Shanghai 200500, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 113期

关键词：

GRAPHENE QUANTUM DOTS; HYDROGEN-PRODUCTION; METAL-FREE; G-C3N4; NANOSHEETS; PERFORMANCE; EVOLUTION; STRATEGY; WATER; EXFOLIATION;

D O I：

10.1039/c6ra23218c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Chemical scissors provide a new vision to manufacture unique carbon nitride nanostructures with improved photocatalytic performance. Herein, graphitic carbon nitride nanoribbon (GCNR), with a typical length of 1.75 mu m, width of 210 nm and thickness of 3 nm, was obtained by acid treatment of bulk g-C3N4 with HNO3/H2SO4 mixtures. The C/N molar ratio of GCNR (around 0.629) was much smaller than that of pristine g-C3N4 (0.758). It was demonstrated that larger amounts of carbon vacancies on the ultra-thin ribbon structures could contribute to improved electron-hole separation efficiency and excellent photocatalytic H-2 production. The average H-2 production rate of GCNR under visible light was 49.4 mu mol h(-1), which was 20 times that of the original catalyst.

引用

页码：112210 / 112214

页数：5

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