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    张耀斌

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 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:zhangyb@dlut.edu.cn

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    Effects of Cu(II) and humic acid on atrazine photodegradation

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    论文类型:期刊论文

    发表时间:2011-07-01

    发表刊物:JOURNAL OF ENVIRONMENTAL SCIENCES

    收录刊物:SCIE、EI、PubMed、ISTIC、CSCD

    卷号:23

    期号:5

    页面范围:773-777

    ISSN号:1001-0742

    关键字:humic acids; Cu(II); photodegradation; hydroxyl radical; singlet oxygen

    摘要:This work was designed to explore the characteristics of photodegradation of herbicides in the copper-polluted water body. The results showed that Cu(II) alone could induce a photo Fenton-like reaction to enhance the degradation of atrazine, in which hydroxyl radical (center dot OH) was a main active species. Humic acids restrained atrazine degradation, nevertheless, when introducing Cu(II), the photodegradation was accelerated, in which singlet oxygen (O-I(2)) replaced center dot OH acting as the prevailing species. A feasible mechanism for the photochemical process was also proposed, which is helpful for better understanding the environmental photochemistry of atrazine in the copper-polluted water.