作    者：蒋胜韬，等
影响因子：0.372
刊物名称：Fresenius Environmental Bulletin
出版年卷：2016, 25(5): 1467-1475

文章摘要：Driven by chemical substitution, Fe/Cu bimetal materials were developed through copper sedimentation on iron crumbs, and characterized through a scanning electron microscope (SEM) and X-ray electron spectrometers. Fe/Cu bimetal systems were used in the treatment of 2,4-dinitrotoluene (2,4-DNT) chemical industrial wastewater, whilst the research was made on treatment efficiency and reaction rate based upon respective factors ranging from the materials, coverage rate of copper, pH and initial concentration, etc. which led us into the discussion of inner mechanisms. It was demonstrated that the best coverage rate of copper plating is 0.25%, and that Fe/Cu bimetal materials supersede simple iron crumbs regarding removal efficiency, reaction rate and adaptation. With pH set at 9.0, 11.0 and 13.0, the removal of 2,4-dinitrotoluene increased by 6.22%, 9.52% and 25.26%, changing from iron crumbs to Fe/Cu bimetal, reaching at 90.18%, 70.21% and 58.8% respectively. Fe/Cu bimetal material tackles the low degradation efficiency in alkaline environments faced by conventional micro-electrolysis and is not limited within acidic wastewater treatment.

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