Efficiency and mechanistic insights of photocatalytic degradation and sterilization utilizing g-C3N4/WO3-x Z-scheme heterojunction under full-spectrum light

被引:1
|
作者
Wang, Wenxia [1 ]
Liu, Xiaofeng [1 ]
Li, Zhen [1 ]
Luo, Hangyu [1 ]
Meng, Zhenbang [1 ]
Wang, Han [1 ]
Chen, Weirui [1 ]
Chen, Jieying [1 ]
Chen, Ri [3 ]
He, Qi [2 ]
机构
[1] Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
[2] Southern Med Univ, Sch Publ Hlth, Guangzhou 510515, Peoples R China
[3] Guangdong Polytech Normal Univ, Sch Electromech Engn, Guangzhou 510665, Guangdong, Peoples R China
来源
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2024年 / 12卷 / 06期
基金
中国国家自然科学基金;
关键词
Full spectrum; Z-scheme; WO3-x; Tetracycline; Photocatalytic sterilization;
D O I
10.1016/j.jece.2024.114392
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Designing highly efficient full-spectrum responsive Z-scheme heterojunction for wastewater decontamination and disinfection is urgently essential. Herein, a novel Z-scheme g-C3N4/WO3-x heterojunction was successfully synthesized by a facile wet impregnation method for the highly efficient photocatalytic degradation and sterilization. Benefiting from the accelerated charge separation, broadened light absorption to near infrared region, and appropriate band energy, optimized g-C3N4/WO3-x heterojunction exhibited photocatalytic degradation of 86.3 % and 97.4 % tetracycline in 2 h under visible light and full-spectrum light, respectively. Meanwhile, 6.5log of Escherichia coli strains could also be inactivated by optimized g-C3N4/WO3-x heterojunction within 45 min and 15 min under visible light and full-spectrum light, respectively. Impressively, it also exhibited desirable antiinterference ability and satisfying photocatalytic degradation capacity with various key experimental parameters. The plausible degradation pathways of TC and the main active species involved in the photocatalysis were investigated based on liquid chromatography-mass spectrometer (LC-MS) and electron paramagnetic resonance (EPR) analysis. Mineralization process of TC was further confirmed by three-dimensional fluorescence spectra (3D EMMs). Besides, Toxicity Estimation Software Tool (T.E.S.T.) and Ecological Structure-Activity Relationships (ECOSAR) program were applied to predict the noxiousness of TC and its potential intermediates. The results suggested that the excitotoxicity of intermediates generally decreased relative to the pristine TC. Finally, we propose a plausible enhancement mechanism of photocatalytic degradation and sterilization. This work sheds a new light on the design of novel full-spectrum responsive Z-scheme heterojunction for environmental remediation.
引用
收藏
页数:16
相关论文
共 50 条
  • [21] Z-scheme Mesoporous CdIn2S4/g-C3N4 heterojunction for enlarged photocatalytic efficiency utilizing visible-light illumination
    Alsheheri, Soad Z.
    Mohamed, Reda M.
    OPTICAL MATERIALS, 2022, 123
  • [22] In-situ synthesis of AgCl/WO3 loaded with g-C3N4 as dual Z-scheme heterojunction for boosting photocatalytic degradation of antibiotics
    Pu, Shulan
    Zhao, Qianru
    Luo, Xi
    Wang, Dongying
    Lei, Ke
    Duan, Yujie
    Mao, Linjiao
    Feng, Wei
    Sun, Yan
    SURFACES AND INTERFACES, 2024, 46
  • [23] A Z-scheme BiYO3/g-C3N4 heterojunction photocatalyst for the degradation of organic pollutants under visible light irradiation
    Parthasarathy Sasikala
    Thirugnanam Bavani
    Manickam Selvaraj
    Mani Preeyanghaa
    Bernaurdshaw Neppolian
    Sepperumal Murugesan
    Jagannathan Madhavan
    Environmental Science and Pollution Research, 2023, 30 : 41095 - 41106
  • [24] A Z-scheme BiYO3/g-C3N4 heterojunction photocatalyst for the degradation of organic pollutants under visible light irradiation
    Sasikala, Parthasarathy
    Bavani, Thirugnanam
    Selvaraj, Manickam
    Preeyanghaa, Mani
    Neppolian, Bernaurdshaw
    Murugesan, Sepperumal
    Madhavan, Jagannathan
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (14) : 41095 - 41106
  • [25] Fabrication of NiO/g-C3N4 Z-scheme heterojunction for enhanced photocatalytic degradation of methylene blue dye
    Ahmed, Mahmoud A.
    Ahmed, Mohamed A.
    Mohamed, Ashraf A.
    OPTICAL MATERIALS, 2024, 151
  • [26] A novel Z-scheme heterojunction g-C3N4/g-C3N4/Pr6O11 for efficient visible-light photocatalytic degradation of sulfonamide
    Li, Qin
    He, Siyuan
    Wang, Liang
    Zhao, Mengxin
    Guo, Tao
    Ma, Xiaohu
    Meng, Zhe
    APPLIED ORGANOMETALLIC CHEMISTRY, 2024, 38 (04)
  • [27] Construction of Ag3PO4/g-C3N4 Z-Scheme Heterojunction Composites with Visible Light Response for Enhanced Photocatalytic Degradation
    Pan, Xiangping
    Meng, Ying
    Liu, Qingwang
    Xu, Mai
    MOLECULES, 2024, 29 (16):
  • [28] Photocatalytic overall water splitting by Z-scheme g-C3N4/BiFeO3 heterojunction
    Sepahvand, Hadis
    Sharifnia, Shahram
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (42) : 23658 - 23668
  • [29] Facile preparation of Z-scheme WO3/g-C3N4 composite photocatalyst with enhanced photocatalytic performance under visible light
    Cui, Lifeng
    Ding, Xiang
    Wang, Yangang
    Shi, Huancong
    Huang, Lihua
    Zuo, Yuanhui
    Kang, Shifei
    APPLIED SURFACE SCIENCE, 2017, 391 : 202 - 210
  • [30] Construction of Z-scheme heterojunction C3N4/N-CQDs@W18O49 for full-spectrum photocatalytic organic pollutant degradation
    He, Yi
    Huang, Ju
    Wang, Binsong
    Qu, Yang
    APPLIED SURFACE SCIENCE, 2023, 610