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    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
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    Enhanced electro-Fenton performance by fluorine-doped porous carbon for removal of organic pollutants in wastewater

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    论文类型:期刊论文

    第一作者:Zhao, Kun

    通讯作者:Zhao, K (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Linggong Rd 2, Dalian 116024, Peoples R China.

    合写作者:Quan, Xie,Chen, Shuo,Yu, Hongtao,Zhang, Yaobin,Zhao, Huimin

    发表时间:2018-12-15

    发表刊物:CHEMICAL ENGINEERING JOURNAL

    收录刊物:SCIE、Scopus

    卷号:354

    页面范围:606-615

    ISSN号:1385-8947

    关键字:Electro-Fenton; Hydroxyl radicals; F-doped porous carbon; Atrazine; Refinery wastewater

    摘要:Electro-Fenton is an efficient approach to degrade refractory organic pollutants in which electro-generated H2O2 are catalyzed by Fe2+ to produce highly reactive hydroxyl radicals ((OH)-O-center dot). The properties of H2O2 formation and recovery of Fe2+ are critical factors in electro-Fenton process, which is related to the electronic structure of catalysts. In this work, the electronic structure of carbon was controlled by incorporation of fluorine (F), which facilitated H2O2 generation and accelerated the recycle of Fe2+ from Fe3+, thus enhancing electro-Fenton activity. The resultant F-doped porous carbon exhibited high H2O2 production rate of 22.4-64.5 mmol L-1 at -0.2 to -0.6 V. The kinetic constant of atrazine degradation achieved 0.10-0.31 min(-1) at potential of -0.2 to -0.6 V. The real secondary effluent of refinery (COD of 92 mg L-1) was successfully treated to meet the National Standard for the Wastewater Discharge of China (COD < 50 mg L-1) with a low specific energy consumption of 6.38 kW h kg(-1) COD-1. This work provides a new insight into design of highly efficient and low-cost catalysts for electro-Fenton treatment of real wastewater.