Construction of Z-scheme Ti/Ga co-doped ZnO heterostructure photocatalyst with graphitic carbon nitride for efficient visible-light-driven dye degradation

被引:4
作者
Guo, Jin [1 ]
Sun, Yihua [1 ,2 ]
Luo, Qiuzi [1 ]
Zhang, Jiangyu [1 ]
Fang, Liang [1 ]
机构
[1] China Three Gorges Univ, Coll Mat & Chem Engn, Key Lab Inorgan Nonmetall Crystalline & Energy Con, Yichang 443002, Peoples R China
[2] Hubei Three Gorges Lab, Yichang 443007, Peoples R China
基金
中国国家自然科学基金;
关键词
Ti/Ga co-doping ZnO; Sol-gel; Graphitic carbon nitride; Z-scheme heterostructure; Photocatalysis; MB degradation; HYDROGEN EVOLUTION; G-C3N4; PERFORMANCE; NANOSHEETS; REMOVAL; DEFECTS;
D O I
10.1007/s11356-023-25276-2
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Innovative solar-driven heterostructure photocatalysts are promising for removing the organic contaminants in the water environment. In this work, a sequence of well-defined Z-scheme Ti-Ga co-doped ZnO/g-C3N4 (TGZ/CN) heterostructure photocatalysts were developed via a simple sol-gel method and the single-phase dispersion method in order to realize the cooperative improvement from the Ti/Ga co-doping and construction of heterostructure. The synthesized samples were analyzed by a variety of characterization techniques, and the photocatalytic activity was assessed by photodegradation of methylene blue (MB) under visible light irradiation. Compared to the ZnO and g-C3N4, the TGZ/CN composite demonstrated higher photocatalytic performance for the degradation of MB indicating an efficient photocatalytic degradation rate of 95.4% in 105 min under visible light. Moreover, the TGZ/CN photocatalyst exhibited excellent stability after five cycles of MB photodegradation. Furthermore, the as-prepared composites' possible photocatalytic mechanism was discussed in detail. The improved photocatalytic performance primarily resulted from the effectively reduced band gap of ZnO after Ti/Ga co-doping and the facilitated separation of photoexcited e(-)/h(+) pairs caused by the construction of Z-scheme heterojunction. This work offers novel insights in developing hybrids with highly efficient photocatalytic activity towards future environmental applications.
引用
收藏
页码:43702 / 43713
页数:12
相关论文
共 52 条
  • [2] Advances in water treatment by adsorption technology
    Ali, Imran
    Gupta, V. K.
    [J]. NATURE PROTOCOLS, 2006, 1 (06) : 2661 - 2667
  • [3] Crafting Mussel-Inspired Metal Nanoparticle-Decorated Ultrathin Graphitic Carbon Nitride for the Degradation of Chemical Pollutants and Production of Chemical Resources
    Cai, Jingsheng
    Huang, Jianying
    Wang, Shanchi
    Iocozzia, James
    Sun, Zhongti
    Sun, Jingyu
    Yang, Yingkui
    Lai, Yuekun
    Lin, Zhiqun
    [J]. ADVANCED MATERIALS, 2019, 31 (15)
  • [4] Construction of covalent bonding oxygen-doped carbon nitride/graphitic carbon nitride Z-scheme heterojunction for enhanced visible-light-driven H2 evolution
    Chen, Yanglin
    Liu, Xueqing
    Hou, Ling
    Guo, Xiaorui
    Fu, Ruiwei
    Sun, Jianmin
    [J]. CHEMICAL ENGINEERING JOURNAL, 2020, 383
  • [5] Opto-electrical properties and chemisorption reactivity of Ga-doped ZnO nanopagodas
    Chiu, Hsien-Ming
    Wu, Jenn-Ming
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (18) : 5524 - 5534
  • [6] Nickel doped graphitic carbon nitride nanosheets and its application for dye degradation by chemical catalysis
    Das, D.
    Banerjee, D.
    Mondal, M.
    Shett, A.
    Das, B.
    Das, N. S.
    Ghorai, U. K.
    Chattopadhyay, K. K.
    [J]. MATERIALS RESEARCH BULLETIN, 2018, 101 : 291 - 304
  • [7] Carbon self-doping induced high electronic conductivity and photoreactivity of g-C3N4
    Dong, Guohui
    Zhao, Kun
    Zhang, Lizhi
    [J]. CHEMICAL COMMUNICATIONS, 2012, 48 (49) : 6178 - 6180
  • [8] A fantastic graphitic carbon nitride (g-C3N4) material: Electronic structure, photocatalytic and photoelectronic properties
    Dong, Guoping
    Zhang, Yuanhao
    Pan, Qiwen
    Qiu, Jianrong
    [J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2014, 20 : 33 - 50
  • [9] Amorphous Carbon Nitride with Three Coordinate Nitrogen (N3C) Vacancies for Exceptional NOx Abatement in Visible Light
    Duan, Youyu
    Wang, Yang
    Gan, Liyong
    Meng, Jiazhi
    Feng, Yajie
    Wang, Kaiwen
    Zhou, Kai
    Wang, Cong
    Han, Xiaodong
    Zhou, Xiaoyuan
    [J]. ADVANCED ENERGY MATERIALS, 2021, 11 (19)
  • [10] Flower-like g-C3N4 assembly from holy nanosheets with nitrogen vacancies for efficient NO abatement
    Duan, Youyu
    Li, Xiaofang
    Lv, Kangle
    Zhao, Li
    Liu, Yi
    [J]. APPLIED SURFACE SCIENCE, 2019, 492 : 166 - 176