One-step synthesis of few layers g-C3N4 with suitable band structure and enhanced photocatalytic activities

被引：7

作者：

Hu, Kuo ^{[1
]}

Wei, Ziyu ^{[1
]}

Yang, Zhenxing ^{[1
]}

Jia, Guangri ^{[1
]}

Dong, Jiajun ^{[2
]}

Zhu, Luyao ^{[1
]}

Fan, Xianhong ^{[1
]}

Yao, Mingguang ^{[1
]}

机构：

[1] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China

[2] Jilin Univ, Sch Mat Sci & Engn, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2019年 / 732卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Self-exfoliated; Few-layers g-C3N4; Conductive band position; Photocatalytic; GRAPHITIC CARBON NITRIDE; EFFICIENT PHOTOCATALYST; NITROGEN-CONTENT; NANOSHEETS; EVOLUTION; WATER; H-2;

D O I：

10.1016/j.cplett.2019.136613

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report a one-step process to prepare high activity few-layers g-C3N4 by a self-exfoliated method. Two kinds of few layers materials are obtained from heating melamine (M-CN) and urea (U-CN), respectively. Although both materials exhibit similar high specific surface area, the conducive band position of M-CN ( -1.89 eV) is obviously lower than U-CN ( -1.45 eV). As a result, the M-CN sample exhibits a much higher hydrogen evolution rate than U-CN. Remarkably, the hydrogen evolution rate of M-CN is 37 higher than the bulk. Our results provide a new strategy for the preparing few-layers g-C3N4 for high photocatalytic performance.

引用

页数：6

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