Zn/Ce metal-organic framework-derived ZnO@CeO2 nano-heterojunction for enhanced photocatalytic activity

被引:16
|
作者
Ma, Ligang [1 ]
Ai, Xiaoqian [2 ]
Jiang, Wenjun [1 ]
Liu, Pengpeng [1 ]
Chen, Yujie [2 ]
Lu, Kehong [2 ]
Song, Xiang [1 ]
Wu, Xiaoshan [3 ,4 ,5 ]
机构
[1] Nanjing Xiaozhuang Univ, Sch Elect Engn, Nanjing 211171, Peoples R China
[2] Jiangsu Second Normal Univ, Coll Phys & Elect Engn, Nanjing 210013, Peoples R China
[3] Nanjing Univ, Inst Mat Engn Nantong 226019, 226019, Nanjing 210093, Peoples R China
[4] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[5] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
关键词
ZnO@CeO 2 nanocomposite; Thermal decomposition; Interfacial interaction; Photocatalytic performance; SCHEME CS2O-BI2O3-ZNO HETEROSTRUCTURES; ZNO NANOPARTICLES; DOPED ZNO; WATER; PHOTODEGRADATION; DYE; MICROSPHERES; DEGRADATION; PERFORMANCE; CATALYST;
D O I
10.1016/j.colcom.2022.100636
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
Photocatalysis is a promising method for the decontamination of wastewater using renewable energy source. However, photocatalysts frequently exhibit low photocatalytic degradation performance because the photogenerated electron-hole pairs undergo rapid recombination. Nevertheless, the formation of nanoheterojunction interfaces in photocatalytic materials provides a route to separates the photogenerated charge carriers. Therefore, in this study, ZnO@CeO2 nanocomposites were prepared by pyrolyzing a coprecipitated Zn@Ce metalorganic-framework precursor, and the effect of the pyrolysis temperature on the photocatalytic performance was investigated. The nanocomposites were composed of hexagonal wurtzite ZnO and cubic CeO2 and possessed a distinct hetero-interface between ZnO and CeO2. The photodegradation performance of the photocatalyst for the degradation of model contaminants (organic dyes) was assessed, and a mechanism for the photocatalytic degradation is proposed. Crucially, the heterojunction interface induced a built-in electric field, which resulted in the accumulation of photoelectrons and holes in the more negative CeO2 conduction band and positive ZnO valence band, respectively, thereby achieving photocarrier separation.
引用
收藏
页数:9
相关论文
共 50 条
  • [1] Metal-organic framework-derived porous carbon-mediated ZnO-nano-ZnO core-shell structure with excellent photocatalytic activity
    Zhou, Dan-Yang
    Pan, Guang-Yu
    Xu, Mei-Ling
    He, Xiong
    Li, Tao
    Liu, Fu-Tian
    Jiang, Feng-Hua
    Li, Kui
    CrystEngComm, 2022, 25 (03): : 425 - 431
  • [2] Metal-organic framework-derived porous carbon-mediated ZnO-nano-ZnO core-shell structure with excellent photocatalytic activity
    Zhou, Dan-Yang
    Pan, Guang-Yu
    Xu, Mei-Ling
    He, Xiong
    Li, Tao
    Liu, Fu-Tian
    Jiang, Feng-Hua
    Li, Kui
    CRYSTENGCOMM, 2023, 25 (03) : 425 - 431
  • [3] Metal-organic framework-derived semiconductors for photocatalytic hydrogen production
    Musa, Emmanuel Nyela
    Stylianou, Kyriakos C. C.
    MOLECULAR SYSTEMS DESIGN & ENGINEERING, 2023, 8 (02): : 151 - 166
  • [4] Metal-organic framework-derived one-dimensional Pd@CeO2 catalysts with enhanced activity for methane oxidation
    Wu, Mingwei
    Miao, Meng
    Li, Wenzhi
    Zhang, Xia
    Zhang, Lulu
    Zhen, Taimin
    Fu, Yan
    Jin, Jingting
    Yuan, Liang
    FUEL, 2023, 331
  • [5] Metal-organic framework-derived cation regulation of metal sulfides for enhanced oxygen evolution activity
    Wan, Kai
    Luo, Jiangshui
    Liu, Wenbo
    Zhang, Ting
    Arbiol, Jordi
    Zhang, Xuan
    Subramanian, Palaniappan
    Fu, Zhiyong
    Fransaer, Jan
    CHINESE JOURNAL OF CATALYSIS, 2023, 54 : 290 - 297
  • [6] Metal-organic framework-derived heterojunctions as nanocatalysts for photocatalytic hydrogen production
    Lu, Lele
    Wu, Boyuan
    Shi, Wei
    Cheng, Peng
    INORGANIC CHEMISTRY FRONTIERS, 2019, 6 (12): : 3456 - 3467
  • [7] Cd(II)-based metal-organic framework-derived CdS photocatalysts for enhancement of photocatalytic activity
    Ma, Ligang
    Ai, Xiaoqian
    Yang, Xingming
    Cao, Xiaoxiao
    Han, Dianrong
    Song, Xiang
    Jiang, Huilin
    Yang, Wei
    Yan, Senlin
    Wu, Xiaoshan
    JOURNAL OF MATERIALS SCIENCE, 2021, 56 (14) : 8643 - 8657
  • [8] A metal-organic framework-derived Zn1-xCdxS/CdS heterojunction for efficient visible light-driven photocatalytic hydrogen production
    Bai, Tianyu
    Shi, Xiaofan
    Liu, Ming
    Huang, Hui
    Yu, Mei-Hui
    Zhang, Jijie
    Bu, Xian-He
    DALTON TRANSACTIONS, 2021, 50 (18) : 6064 - 6070
  • [9] 3D-Printed Metal-Organic Framework-Derived Composites for Enhanced Photocatalytic Hydrogen Generation
    Hussain, Mian Zahid
    Grossmann, Paula F.
    Kohler, Fabian
    Kratky, Tim
    Kronthaler, Laura
    van der Linden, Bart
    Rodewald, Katia
    Rieger, Bernhard
    Fischer, Roland A.
    Xia, Yongde
    SOLAR RRL, 2022, 6 (10):
  • [10] Study on the Photocatalytic Properties of Metal-Organic Framework-Derived C-, N-Co-Doped ZnO
    Fu, Su
    Xi, Wenkui
    Ren, Jinlong
    Wei, Hangxin
    Sun, Wen
    MATERIALS, 2024, 17 (04)