Pyrolyzing Co/Zn bimetallic organic framework to form p-n heterojunction of Co3O4/ZnO for detection of formaldehyde

被引：81
|
作者：
Sun, Jianhua [1 ,2 ]
Sun, Lixia [1 ]
Bai, Shouli [2 ]
Fu, Hang [2 ]
Guo, Jun [2 ]
Feng, Yongjun [2 ]
Luo, Ruixian [2 ]
Li, Dianqing [2 ]
Chen, Aifan [2 ]
机构：
[1] Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Petrochem Resource Proc & Proc In, Nanning 530004, Peoples R China
[2] Beijing Univ Chem Technol, Beijing Key Lab Environm Harmful Chem Anal, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2019年 / 285卷
基金：
中国国家自然科学基金;
关键词：
Porous Co3O4/ZnO composite; MOFs templates; Formaldehyde sensor; p-n heterojunctions; GAS-SENSING PROPERTIES; NANOCOMPOSITES; ZNO; NANOPARTICLES; MECHANISM; TEMPLATE; NANOSTRUCTURES; PERFORMANCE; SENSORS; CARBON;
D O I：
10.1016/j.snb.2018.12.080
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
he Co3O4/ZnO composites with porous and high specific surface were prepared by calcination of Co and Zn-based bimetallic organic framework (MOFs). The influence of the calcination temperature on structure and morphology of composite has been discussed by means of the analysis of XRD, FESEM, HRTEM and XPS spectra. Gas-sensing experiment reveals that the response of composite (Co/ Zn = 4: 1 At.) is 5 times higher than that of pristine Co3O4 to 10 ppm HCHO at 120 degrees C and exhibits a rapid response, good selectivity, and stability. Such excellent performance is attributed to the large specific surface area and porous structure resulting from pyrolyzing of MOFs framework, which is beneficial to gas adsorption, diffusion and surface reaction. This MOF-driven strategy is expected to be a promising method for preparation of other metal oxide composites and application in detecting toxic gas.
引用
收藏
页码：291 / 301
页数：11
相关论文
共 50 条
  • [31] Utilizing the built-in electric field of p-n heterojunction to spatially separate the photogenerated charges in C, N co-doped Co3O4/CdS photocatalysts
    Chen, Tingzhen
    Yang, Chengwu
    Rajendran, Saravanan
    Sawangphruk, Montree
    Zhang, Xinyu
    Qin, Jiaqian
    FUEL, 2023, 331
  • [32] Bimetallic MOF-derived CeO2/Co3O4 microflowers with synergy of oxygen vacancy and p-n heterojunction for high-performance n-butanol sensors
    Yao, Xuan
    He, Yongchao
    Fu, Shaqi
    Yang, Xuechun
    Cui, Shicong
    Cheng, Lingli
    Pan, Yun
    Jiao, Zheng
    MATERIALS TODAY COMMUNICATIONS, 2022, 33
  • [33] Interface engineering of hollow CsPbBr3/Co3O4 p-n heterojunction with rich oxygen vacancy for highly enhanced photocatalytic CO2 reduction
    Deng, Xiuzheng
    Liang, Qian
    Fan, Jingshan
    Yan, Xiong
    Si, Honglin
    Huang, Hui
    Li, Zhongyu
    Kang, Zhenhui
    CHEMICAL ENGINEERING JOURNAL, 2023, 475
  • [34] Mesoporous Co3O4 nanowires decorated with g-C3N4 nanosheets for high performance toluene gas sensors based on p-n heterojunction
    Niu, J. Y.
    Wang, L.
    Xu, J. C.
    Jin, H. X.
    Hong, B.
    Jin, D. F.
    Peng, X. L.
    Ge, H. L.
    Wang, X. Q.
    MATERIALS CHEMISTRY AND PHYSICS, 2023, 293
  • [35] Detection of Xylene Using Ni(OH)2-Enhanced Co3O4 Nanoplate via p-n Junctions
    Ran, Mengran
    Yuan, Zhenyu
    Zhu, Hongmin
    Gao, Hongliang
    Meng, Fanli
    CHEMOSENSORS, 2023, 11 (11)
  • [36] Magnetic Field Enhanced Electrocatalytic Oxygen Evolution of NiFe-LDH/Co3O4 p-n Heterojunction Supported on Nickel Foam
    Zhang, Yuanyuan
    Guo, Ping
    Niu, Siqi
    Wu, Jie
    Wang, Wei
    Song, Bo
    Wang, Xianjie
    Jiang, Zaixing
    Xu, Ping
    SMALL METHODS, 2022, 6 (06)
  • [37] Co3O4/In2O3 p-n heterostructures based gas sensor for efficient structure-driven trimethylamine detection
    Ji, Yao
    Zhang, Nan
    Xu, Juhua
    Jin, Quan
    San, Xiaoguang
    Wang, Xiaolong
    CERAMICS INTERNATIONAL, 2023, 49 (11) : 17354 - 17362
  • [38] Construction of hollow core-shell ZnO@Co3O4 p-n heterojunction for CO2 cycloaddition under visible light irradiation
    An, Hong
    Huang, Zishan
    Chen, Fengfeng
    Ma, Yilin
    Chen, Kai
    Gao, Junkuo
    JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 1009
  • [39] Accelerated photocatalytic degradation of iohexol over Co3O4/g-C3N4/Bi2O2CO3 of p-n/n-n dual heterojunction under simulated sunlight by persulfate
    Xiang, Weiming
    Ji, Qiuyi
    Xu, Chenmin
    Guo, Yang
    Liu, Yazi
    Sun, Dunyu
    Zhou, Wenwu
    Xu, Zhe
    Qi, Chengdu
    Yang, Shaogui
    Li, Shiyin
    Sun, Cheng
    He, Huan
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2021, 285
  • [40] Constructing Nb2O5/Co3O4 microflowers with p-n heterojunction structure for visible-light-induced degradation of norfloxacin
    Zhu, Haonan
    Wang, Fangyuan
    Cao, Yingying
    Yang, Yuhai
    Yang, Siyu
    Zou, Zipeng
    Hu, Fengjie
    Chen, Feng
    Qiu, Jianping
    Song, Shuang
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2025, 13 (01):
12345