生物炭负载纳米零价铁材料的制备及还原降解性能
发布时间：2018-08-18 20:08
【摘要】：选取花生壳、稻草秸秆和玉米秸秆为原料制备不同种类生物炭,合成不同生物炭负载纳米零价铁复合材料(BC/n ZVI)。采用比表面积分析、扫描电镜等多种表征方法获得不同BC/n ZVI的物理化学和结构性质,测试BC/n ZVI对水溶液中典型有机氯农药γ-六六六的还原降解效果。结果表明,花生壳、稻草秸秆和玉米秸秆均在300℃制备条件下有较高的产率和较好的吸附效果;制备的BC/n ZVI颗粒呈球状结构,以花生壳BC/n ZVI分散性为最好;在水相实验中,添加BC/n ZVI对γ-六六六的去除效果优于单独添加生物炭或者纳米零价铁的效果;3种生物炭基材料中,花生壳BC/n ZVI对水相γ-六六六6 h的去除率为87.53%,反应体系中污染物总降解率达82.33%。
[Abstract]:Using peanut shell, straw and corn straw as raw materials, different kinds of biochar were prepared, and different carbon loaded nano-zero-valent iron composites (BC/n ZVI).) were synthesized. Different physical, chemical and structural properties of BC/n ZVI were obtained by specific surface area analysis, scanning electron microscopy and other characterization methods. The reduction and degradation effects of BC/n ZVI on typical organochlorine pesticide 纬 -HCH in aqueous solution were tested. The results showed that the peanut shell, straw and corn straw were prepared at 300 鈩，
本文编号：2190544
[Abstract]:Using peanut shell, straw and corn straw as raw materials, different kinds of biochar were prepared, and different carbon loaded nano-zero-valent iron composites (BC/n ZVI).) were synthesized. Different physical, chemical and structural properties of BC/n ZVI were obtained by specific surface area analysis, scanning electron microscopy and other characterization methods. The reduction and degradation effects of BC/n ZVI on typical organochlorine pesticide 纬 -HCH in aqueous solution were tested. The results showed that the peanut shell, straw and corn straw were prepared at 300 鈩，
本文编号：2190544
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