van der Waals type II carbon nitride homojunctions for visible light photocatalytic hydrogen evolution

被引：20

作者：

Li, Xiaojie ^{[1
,2
]}

Zhang, Panpan ^{[1
]}

Zhang, Huayang ^{[1
]}

Tian, Wenjie ^{[1
]}

Yang, Yangyang ^{[1
]}

Hu, Kunsheng ^{[1
]}

Chen, Dechao ^{[3
]}

Li, Qin ^{[3
]}

Duan, Xiaoguang ^{[1
]}

Sun, Hongqi ^{[4
]}

Wang, Shaobin ^{[1
]}

机构：

[1] Univ Adelaide, Sch Chem Engn & Adv Mat, Adelaide, SA 5005, Australia

[2] Curtin Univ, Dept Chem Engn, GPO Box U1987, Perth, WA 6845, Australia

[3] Griffith Univ, Queensland Micro & Nanotechnol Ctr, Sch Engn & Built Environm, Nathan, Qld 4111, Australia

[4] Edith Cowan Univ, Sch Engn, Joondalup, WA 6027, Australia

来源：

NANO RESEARCH | 2023年 / 16卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

van der Waals junction; type II junction; hydrogen evolution; carbon nitride; photocatalyst; TOTAL-ENERGY CALCULATIONS; OXYGEN-DOPED G-C3N4; NANOSHEETS; GENERATION; WATER; HETEROJUNCTIONS; PERFORMANCE; POTASSIUM; EMISSIONS; CATALYSIS;

D O I：

10.1007/s12274-021-3744-x

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：

Photocatalytic hydrogen evolution reaction (PC-HER) provides a solution to energy crisis and environmental pollution. Herein, different graphitic carbon nitride (g-C3N4)-based van der Waals (vdW) type II homojunctions have been fabricated and g-C3N4/K-doped g-C3N4 nanosheets have an outstanding PC-HER rate of 1,243 mu mol-h(-1).g(-1) under visible light, higher than that of bulk g-C3N4, doped g-C3N4 nanosheets, and mixed nanosheets. The enhanced PC-HER performance can be ascribed to the cooperative effects of the shortened bandgap, enlarged specific surface area, matched type II energy band structure, "face to face" vdW charge interaction, and peculiarly partite positions of the conduction and valence bands in different layers. Besides, the type II junctions were found superior to binary type II junction. This study highlights the synergistic effect of different strategies in improving the PC-HER capacities of g-C3N4, especially the application of particular vdW junctions, and provides new insights to the structures and mechanism.

引用

页码：5864 / 5872

页数：9

共 49 条

[1] Synergistic Effects of Boron and Sulfur Co-doping into Graphitic Carbon Nitride Framework for Enhanced Photocatalytic Activity in Visible Light Driven Hydrogen Generation [J].

Babu, Pradeepta ;

Mohanty, Satyaranjan ;

Naik, Brundabana ;

Parida, Kulamani .

ACS APPLIED ENERGY MATERIALS, 2018, 1 (11) :5936-5947

[2] Rapid and energy-efficient preparation of boron doped g-C3N4 with excellent performance in photocatalytic H2-evolution [J].

Chen, Pengfei ;

Xing, Pingxing ;

Chen, Zhiqiang ;

Lin, Hongjun ;

He, Yiming .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2018, 43 (43) :19984-19989

[3]

Cheng C, 2020, APPL CATAL B-ENVIRON, V265, DOI [10.1007/978-981-15-8086-4_25, 10.1016/j.apcatb.2020.118620]

[4] Californian labs feel the heat of energy crisis [J].

Dalton, R .

NATURE, 2001, 411 (6835) :227-227

[5] One-step fabrication of porous oxygen-doped g-C3N4 with feeble nitrogen vacancies for enhanced photocatalytic performance [J].

Fang, Li Jun ;

Wang, Xue Lu ;

Zhao, Jun Jie ;

Li, Yu Hang ;

Wang, Yu Lei ;

Du, Xu Lei ;

He, Zhi Fei ;

Zeng, Hui Dan ;

Yang, Hua Gui .

CHEMICAL COMMUNICATIONS, 2016, 52 (100) :14408-14411

[6] One-Step Nickel Foam Assisted Synthesis of Holey G-Carbon Nitride Nanosheets for Efficient Visible-Light Photocatalytic H2 Evolution [J].

Fang, Zhenyuan ;

Hong, Yuanzhi ;

Li, Di ;

Luo, Bifu ;

Mao, Baodong ;

Shi, Weidong .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (24) :20521-20529

[7] A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu [J].

Grimme, Stefan ;

Antony, Jens ;

Ehrlich, Stephan ;

Krieg, Helge .

JOURNAL OF CHEMICAL PHYSICS, 2010, 132 (15)

[8] Enhanced photocatalytic hydrogen evolution performance of mesoporous graphitic carbon nitride co-doped with potassium and iodine [J].

Guo, Yarong ;

Liu, Qiong ;

Li, Zehao ;

Zhang, Zhengguo ;

Fang, Xiaoming .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 221 :362-370

[9] Facile production of ultrathin graphitic carbon nitride nanoplatelets for efficient visible-light water splitting [J].

Han, Qing ;

Zhao, Fei ;

Hu, Chuangang ;

Lv, Lingxiao ;

Zhang, Zhipan ;

Chen, Nan ;

Qu, Liangti .

NANO RESEARCH, 2015, 8 (05) :1718-1728

[10] Depletion of fossil fuels and anthropogenic climate change-A review [J].

Hook, Mikael ;

Tang, Xu .

ENERGY POLICY, 2013, 52 :797-809

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