Crystalline oxygen-bridged carbon nitride from self-assembled supramolecular intermediate for efficient photocatalytic H2 evolution

被引:2
|
作者
Huang, Guangzheng [1 ]
Xiao, Bowen [2 ]
Bao, Liyan [1 ]
Wang, Dengke [3 ]
Luo, Yannan [1 ]
Yan, Shicheng [4 ]
Gao, Honglin [1 ]
机构
[1] Yunnan Univ, Natl Ctr Int Res Photoelect & Energy Mat, Sch Mat & Energy, Kunming 650091, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[3] Yunnan Univ, Ctr Optoelect Engn Res, Dept Phys, Kunming 650091, Peoples R China
[4] Nanjing Univ, Ecomat & Renewable Energy Res Ctr ERERC, Coll Engn & Appl Sci, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
PHOTOOXIDATION; NANOTUBES;
D O I
10.1039/d3ta06289a
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
Crystalline carbon nitride can potentially manifest heightened light-harvesting efficiency, coupled with proficient charge migration rates, attributable to the diminished count of recombination centers for photoexcited carriers. This phenomenon stems from the extensive pi-conjugated framework and the dispersion of pi-electrons. This investigation adopts a self-assembly strategy, utilizing hydrogen-bonded bridging melem with cyanuric acid, to yield crystalline oxygen-bridged carbon nitride. The strategic introduction of oxygen doping, positioned at the junction between heptazine units, and the crystalline architecture endow BCN with augmented photocatalytic H-2 evolution capacity. This culminates in a H-2 production rate under visible light irradiation that surpasses that of pristine BCN by approximately 23.2 times, and an apparent quantum efficiency (AQE) of 13.2% at 420 nm. The confluence of the oxygen-bridging mechanism and crystalline architecture within carbon nitride profoundly augments the partition and migration pace of photoexcited carriers, resulting in the amplified photocatalytic performance of BCN. This strategic paradigm charts a fresh trajectory toward an exponential augmentation of carbon nitride performance, nimbly regulating both crystalline architecture and elemental doping.
引用
收藏
页码:3480 / 3488
页数:9
相关论文
共 50 条
  • [1] Construction of π-conjugated crystalline carbon dots with carbon nitride nanofragments for efficient photocatalytic H2 evolution
    He, Fang
    Yuan, Hubo
    Hu, Yan
    Huang, Jiawei
    Wang, Zhenxing
    Peng, Shaoqin
    Li, Yuexiang
    [J]. CHEMICAL COMMUNICATIONS, 2023, 59 (66) : 10016 - 10019
  • [2] Construction of Type-II Heterojunctions in Crystalline Carbon Nitride for Efficient Photocatalytic H2 Evolution
    Zhang, Jingyu
    Li, Zhongliang
    Li, Jialong
    He, Yalin
    Tong, Haojie
    Li, Shuang
    Chai, Zhanli
    Lan, Kun
    [J]. NANOMATERIALS, 2023, 13 (16)
  • [3] Self-assembled supramolecular materials for photocatalytic H2 production and CO2 reduction
    Tian, Jia
    Yu, Junlai
    Tang, Qingxuan
    Zhang, Jiangshan
    Ma, Danying
    Lei, Yifei
    Li, Zhan-Ting
    [J]. MATERIALS FUTURES, 2022, 1 (04):
  • [4] A self-assembled perylene diimide nanobelt for efficient visible-light-driven photocatalytic H2 evolution
    Kong, Kangyi
    Zhang, Shicong
    Chu, Yanmeng
    Hu, Yue
    Yu, Fengtao
    Ye, Haonan
    Ding, Haoran
    Hua, Jianli
    [J]. CHEMICAL COMMUNICATIONS, 2019, 55 (56) : 8090 - 8093
  • [5] Bio-Inspired Supramolecular Self-Assembled Carbon Nitride Nanostructures for Photocatalytic Water Splitting
    Dharmarajan, Nithinraj Panangattu
    Vidyasagar, Devthade
    Yang, Jae-Hun
    Talapaneni, Siddulu Naidu
    Lee, Jangmee
    Ramadass, Kavitha
    Singh, Gurwinder
    Fawaz, Mohammed
    Kumar, Prashant
    Vinu, Ajayan
    [J]. ADVANCED MATERIALS, 2024, 36 (02)
  • [6] Self-assembled carbon nitride for photocatalytic hydrogen evolution and degradation of p-nitrophenol
    Sun, Jingwen
    Xu, Jingsan
    Grafmueller, Andrea
    Huang, Xing
    Liedel, Clemens
    Algara-Siller, Gerardo
    Willinger, Marc
    Yang, Can
    Fu, Yongsheng
    Wang, Xin
    Shalom, Menny
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2017, 205 : 1 - 10
  • [7] Porous graphitic carbon nitride with high concentration of oxygen promotes photocatalytic H2 evolution
    Jia, Ruokun
    Yu, Xueli
    Yang, Xiaohang
    Wang, Xinzhe
    Yang, Jiaming
    Huo, Xuyang
    Qi, Qiuju
    [J]. RSC ADVANCES, 2022, 12 (52) : 33688 - 33695
  • [8] Efficient photocatalytic H2 evolution and α-methylation of ketones from copper complex modified polymeric carbon nitride
    Zhang, Yunxiao
    Cao, Qingxiang
    Wu, Xuelian
    Xiao, Yonghao
    Meng, Aiyun
    Zhang, Qitao
    Yu, Yuxiang
    Zhang, Wei-De
    [J]. CHEMICAL ENGINEERING JOURNAL, 2022, 427
  • [9] Directional modulation of triazine and heptazine based carbon nitride for efficient photocatalytic H2 evolution
    He, Fang
    Wang, Meng
    Luo, Lan
    Wang, Zhenxing
    Peng, Shaoqin
    Li, Yuexiang
    [J]. APPLIED SURFACE SCIENCE, 2021, 562
  • [10] Synergy of dopants and porous structures in graphitic carbon nitride for efficient photocatalytic H2 evolution
    Bai, Jirong
    Zhou, Pin
    Xu, Peng
    Deng, Yaoyao
    Zhou, Quanfa
    [J]. CERAMICS INTERNATIONAL, 2021, 47 (03) : 4043 - 4048