Ultrathin sulfur-doped holey carbon nitride nanosheets with superior photocatalytic hydrogen production from water

被引:124
作者
Luo, Lei [1 ]
Gong, Zhuyu [1 ]
Ma, Jiani [1 ]
Wang, Keran [1 ]
Zhu, Haixing [1 ]
Li, Keyan [2 ]
Xiong, Lunqiao [3 ]
Guo, Xinwen [2 ]
Tang, Junwang [3 ]
机构
[1] Northwest Univ, Coll Chem & Mat Sci, Minist Educ Energy & Catalysis Hub, Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Peoples R China
[2] Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[3] UCL, Dept Chem Engn, Torrington Pl, London WC1E 7JE, England
基金
中国博士后科学基金; 英国工程与自然科学研究理事会; 中国国家自然科学基金;
关键词
Graphitic carbon nitride; Surface modification; Sulfur-doping; Two-dimensional materials; Visible water splitting;
D O I
10.1016/j.apcatb.2020.119742
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
Surface engineering is an efficient way to enhance photoabsorption, promote charge separation and boost photocatalysis. Herein, sulfur-doped holey g-C3N4 nanosheets have been prepared through a universal self-templating approach with thiocyanuric acid as the single-precursor. By subtly controlling the feeding amount of precursor, the synthesized sulfur-doped holey g-C3N4 nanosheets exhibit excellent visible-light driven photocatalytic hydrogen production activity. The optimized catalyst presents a hydrogen evolution rate of 6225.4 umol g(-l) h(-1), with an apparent quantum yield of 10 % at 420 nm. Comprehensive characterizations and theoretical calculations suggest that the enhanced photocatalysis is attributed to the synergy of the enlarged surface area, the negatively-shifted conduction band, and the narrowed bandgap due to sulfur-doping and ultra-thin twodimensional topology. This work highlights the importance of controlling the precursor dosage and inducing sulfur doping into the polymer, providing a promising and reliable strategy to simultaneously regulate the nanostructural and electronic structure of g-C3N4 for highly efficient photocatalysis.
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页数:10
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共 51 条
[1]   Experimental and theoretical study of the intramolecular C-H•••N and C-H•••S hydrogen bonding effects in the 1H and 13C NMR spectra of the 2-(alkylsulfanyl)-5-amino-1-vinylpyrroles: a particular state of amine nitrogen [J].
Afonin, Andrei V. ;
Pavlov, Dmitry V. ;
Albanov, Alexander I. ;
Tarasova, Ol'ga A. ;
Nedolya, Nina A. .
MAGNETIC RESONANCE IN CHEMISTRY, 2013, 51 (07) :414-423
[2]   A true oxygen-linked heptazine based polymer for efficient hydrogen evolution [J].
Battula, V. R. ;
Kumar, Sunil ;
Chauhan, D. K. ;
Samanta, Soumadri ;
Kailasam, Kamalakannan .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2019, 244 :313-319
[3]   Fast Photoelectron Transfer in (Cring)-C3N4 Plane Heterostructural Nanosheets for Overall Water Splitting [J].
Che, Wei ;
Cheng, Weiren ;
Yao, Tao ;
Tang, Fumin ;
Liu, Wei ;
Su, Hui ;
Huang, Yuanyuan ;
Liu, Qinghua ;
Liu, Jinkun ;
Hu, Fengchun ;
Pan, Zhiyun ;
Sun, Zhihu ;
Wei, Shiqiang .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (08) :3021-3026
[4]   Three-dimensional porous g-C3N4 for highly efficient photocatalytic overall water splitting [J].
Chen, Xianjie ;
Shi, Run ;
Chen, Qian ;
Zhang, Zijian ;
Jiang, Wenjun ;
Zhu, Yongfa ;
Zhang, Tierui .
NANO ENERGY, 2019, 59 :644-650
[5]   Filling the nitrogen vacancies with sulphur dopants in graphitic C3N4 for efficient and robust electrocatalytic nitrogen reduction [J].
Chu, Ke ;
Li, Qing-qing ;
Liu, Ya-ping ;
Wang, Jing ;
Cheng, Yong-hua .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2020, 267
[6]   Scalable and clean exfoliation of graphitic carbon nitride in NaClO solution: enriched surface active sites for enhanced photocatalytic H2 evolution [J].
Cui, Lifeng ;
Liu, Yanfei ;
Fang, Xueyou ;
Yin, Chaochuang ;
Li, Shasha ;
Sun, Di ;
Kang, Shifei .
GREEN CHEMISTRY, 2018, 20 (06) :1354-1361
[7]   In-situ synthesis of sulfur doped carbon nitride microsphere for outstanding visible light photocatalytic Cr(VI) reduction [J].
Cui, Yanjuan ;
Li, Ming ;
Wang, Hao ;
Yang, Chuanfeng ;
Meng, Sugang ;
Chen, Fangyan .
SEPARATION AND PURIFICATION TECHNOLOGY, 2018, 199 :251-259
[8]   Carbon self-doping induced high electronic conductivity and photoreactivity of g-C3N4 [J].
Dong, Guohui ;
Zhao, Kun ;
Zhang, Lizhi .
CHEMICAL COMMUNICATIONS, 2012, 48 (49) :6178-6180
[9]   Interface-Assisted Synthesis of 2D Materials: Trend and Challenges [J].
Dong, Renhao ;
Zhang, Tao ;
Feng, Xinliang .
CHEMICAL REVIEWS, 2018, 118 (13) :6189-6235
[10]   Nitrogen self-doped graphitic carbon nitride as efficient visible light photocatalyst for hydrogen evolution [J].
Fang, Jiawen ;
Fan, Huiqing ;
Li, Mengmeng ;
Long, Changbai .
JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (26) :13819-13826