Carbon doped honeycomb-like graphitic carbon nitride for photocatalytic hydrogen production

被引:51
作者
Liu, Guangqing [1 ]
Xue, Mengwei [1 ]
Liu, Qinpu [1 ]
Yang, Hui [1 ]
Zhou, Yuming [2 ]
机构
[1] Nanjing Xiaozhuang Univ, Sch Environm Sci, Nanjing 211171, Jiangsu, Peoples R China
[2] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Carbon doped; g-C3N4; Honeycomb-like; Electronic modulation strategy; Hydrogen evolution; G-C3N4; NANOSHEETS; STRUCTURED G-C3N4; EFFICIENT; ENHANCEMENT; OXYGEN; PERFORMANCE; EVOLUTION; WATER;
D O I
10.1016/j.jcis.2019.05.106
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
Carbon doped honeycomb-like graphitic carbon nitride (g-C3N4) was prepared by one-step thermal polymerization, which derived from chitosan as a carbon source together with the melamine-cyanuric acid complex as a supramolecular precursor. Interestingly, the carbon doped g-C3N4 displayed an increased specific surface area and a more negative conduction band energy level, which not only provided a large number of reaction sites for the photocatalytic hydrogen production, but also effectively enhances the separation of photogenerated electrons-holes. And the experimental results showed that the hydrogen evolution rate of the optimal sample was as high as 320 mu mol-h(-1), which is 29.10 times than that of bulk g-C3N4 (11 mu mol-h(-1)). More importantly, this work may provide a promising idea for the design of efficient g-C(3)N4 by controlling the material morphology and combining the electronic modulation strategy. (C) 2019 Published by Elsevier Inc.
引用
收藏
页码:728 / 734
页数:7
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