Preparation of silica coated nano-scale zero-valent iron and research on the degradation of chlorophenols

doi:10.11894/1005-829x.2012.32(10).54

Abstract

Abstract:

The home-made silica coated nanometer zero-valent iron(NZVI) has been used for reducing and degrading 2,4,6-TCP at room temperature under neutrality condition.The effects of the dosage of coated nano-scale zero-valent iron and the initial concentration of 2,4,6-TCP on degrading efficiency are discussed briefly.Its reaction kinetics is explained briefly.The process of reaction degradation accords with the first grade reaction kinetics.The speed constant of apparent reaction K_obs= 0.011 13 h-1.

Key words: coated, nano zero-valent iron, chlorophenols?

摘要：

利用自制的二氧化硅包覆型纳米零价铁在常温中性条件下还原降解了2，4，6-TCP，简要探讨了包覆型纳米零价铁的投加量和2，4，6-TCP 初始浓度对降解效率的影响，并对其反应动力学进行了简要说明。降解反应过程符合一级反应动力学，表观反应速率常数K_obs=0.011 13 h^-1。

关键词: 包覆, 纳米零价铁, 氯酚类化合物

CLC Number:

X703.1

Ren Rong, Ma Yongwen, Wan Jinquan. Preparation of silica coated nano-scale zero-valent iron and research on the degradation of chlorophenols[J]. INDUSTRIAL WATER TREATMENT, 2012, 32(10): 54-56.

任蓉, 马邕文, 万金泉. 包覆型纳米铁的制备及对氯酚类化合物的降解研究[J]. 工业水处理, 2012, 32(10): 54-56.

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https://www.iwt.cn/EN/Y2012/V32/I10/54

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