One-Pot Fabrication of g-C3N4/MWCNTs Nanocomposites with Superior Visible-Light Photocatalytic Performance

被引:41
作者
Ding, Fei [1 ,4 ]
Zhao, Zhanfeng [1 ,4 ]
Yang, Dong [2 ,3 ]
Zhao, Xuyang [1 ,4 ]
Chen, Yao [1 ,4 ]
Jiang, Zhongyi [1 ,4 ]
机构
[1] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Technol, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Syst Bioengn, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China
[4] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
关键词
GRAPHITIC CARBON NITRIDE; HYDROGEN-EVOLUTION; COMPOSITE PHOTOCATALYSTS; HIGHLY EFFICIENT; METHYL-ORANGE; G-C3N4; DEGRADATION; ENHANCEMENT; NANOSHEETS; NANOTUBES;
D O I
10.1021/acs.iecr.8b05293
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Visible-light photocatalysis has drawn tremendous attention in the field of chemical industry owing to its considerable significance in pollution abatement and energy supply. Herein, graphitic carbon nitride/multiwalled carbon nanotubes (g-C3N4/MWCNTs) nanocomposites are fabricated using a melamine-cyanuric acid supramolecular assembly as precursor via a facile one-pot method. On one hand, the stable covalent connection between g-C3N4 and MWCNTs is built during the self-assembling process of the supramolecular precursor, which intensifies catalytic and adsorption abilities. On the other hand, MWCNTs confer both active sites and a radially single-track electron transfer path, which is conducive to restraining the combination of photogenerated carriers. The g-C3N4/MVVCNTs nanocomposite with the optimal MWCNTs content can completely degrade rhodamine B (RhB) solution within 1 h, and the degradation rate is improved similar to 6.6 times compared with pure g-C3N4. This facile strategy for fabricating efficient and stable visible-light-driven photocatalysts may hold great promise in large-scale water treatment.
引用
收藏
页码:3679 / 3687
页数:9
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