Fabrication of molybdenum doped carbon nitride nanosheets for efficiently photocatalytic water splitting

被引：21

作者：

Che, Haibing ^{[1
]}

Ngaw, Chee Keong ^{[2
]}

Hu, Peng ^{[1
]}

Wang, Jinshu ^{[1
]}

Li, Yongli ^{[1
]}

Wang, Xuekai ^{[1
]}

Teng, Weili ^{[1
]}

机构：

[1] Beijing Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China

[2] Chulalongkorn Univ, Fac Engn, Int Sch Engn, Bangkok 10330, Thailand

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 849卷

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Carbon nitride; Nanosheet; Doping; Photocatalyst; Hydrogen evolution; HYDROGEN GENERATION; G-C3N4; NANOSHEETS; QUANTUM DOTS; DEFECT; DEGRADATION; COCATALYST; EVOLUTION; ROUTE; MOS2;

D O I：

10.1016/j.jallcom.2020.156440

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：

Rational design of photocatalyst with efficient performance in water splitting is highly desired for solar energy utilization. In this work, a simple and facile strategy was developed to synthesize Mo doped graphic carbon nitride (g-C3N4) by a two-step thermal treatment process. As obtained product exhibits sheet-like morphology with porous structure, and the formation mechanism could be ascribed to the exfoliation effect in thermal environment. Photocatalytic property investigation reveals that Mo doped g-C3N4 nanosheets present greatly improved hydrogen evolution rate of 1.6 mmol g(-1) h(-1) under visible light, which is about 9.4 times higher than that of pristine g-C3N4. The improved performance could be well attributed to its enhanced visible light absorption, well suppressed carrier recombination and greatly increased specific surface area. Accordingly, our work provides a promising and straight forward way to develop advanced photocatalyst with high efficiency for renewable energy generation. (C) 2020 Elsevier B.V. All rights reserved.

引用

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