• 其他栏目

    张耀斌

    • 教授   博士生导师   硕士生导师
    • 主要任职:无
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 在职信息:在职
    • 所在单位:环境学院
    • 学科:环境科学与工程 环境工程 环境科学
    • 办公地点:环境楼B301
    • 电子邮箱:

    访问量:

    开通时间 :..

    最后更新时间:..

    Enhanced heterogeneous Fenton-like activity by Cu-doped BiFeO3 perovskite for degradation of organic pollutants

    点击量:

    论文类型:期刊论文

    第一作者:Mao, Jie

    通讯作者:Quan, X (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China.

    合写作者:Quan, Xie,Wang, Jing,Gao, Cong,Chen, Shuo,Yu, Hongtao,Zhang, Yaobin

    发表时间:2018-12-01

    发表刊物:FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING

    收录刊物:SCIE、Scopus

    卷号:12

    期号:6

    ISSN号:2095-2201

    关键字:Cu doped BiFeO3; Heterogeneous Fenton-like catalysts; Oxidative degradation

    摘要:Heterogeneous Fenton-like reaction has been extensively investigated to eliminate refractory organic contaminants in wastewater, but it usually shows low catalytic performance due to difficulty in reduction from Fe(III) to Fe(II). In this study, enhanced catalytic efficiency was obtained by employing Cu-doped BiFeO3 as heterogeneous Fenton-like catalysts, which exhibited higher catalytic performance toward the activation of H2O2 for phenol degradation than un-doped BiFeO3. BiFe0.8Cu0.2O3 displayed the best performance, which yielded 91% removal of phenol (10 mg L-1) in 120 min. The pseudo first-order kinetic rate constant of phenol degradation in BiFe0.8Cu0.2O3 catalyzed heterogeneous Fenton-like reaction was 5 times higher than those of traditional heterogeneous Fenton-like catalysts, such as Fe3O4 and goethite. The phenol degradation efficiency could still reach 83% after 4 cycles, which implied the good stability of BiFe0.8Cu0.2O3. The high catalytic activity of BiFe0.8Cu0.2O3 was attributed to the fact that the doping Cu into BiFeO3 could promote the generation of Fe(II) in the catalyst and then facilitate the activation of H2O2 to degrade the organic pollutants.