2007•Chemistry & BioengineeringRequires access

Bentonite Modified and Its Purification of Zn~(2+) in Water

Dong Yuan-yan

Abstract

The Na-bentonite was modified with cetyltrimethyl ammonium chloride(CTAC),and the effects(amount of bentonite,adsorption time,pH value of the solution) on adsorption of Zn2+ were studied.Meanwhile,the adsorption results of Zn2+ in inorganic bentonite and organic modified bentonite were compared.It was indicated that the bentonites were good adsorbent materials for Zn2+,but the adsorption capability of organic modified bentonite was stronger than that of inorganic one.Furthermore,the effects of pH value on the Zn2+ adsorption in the bentonites were different.

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Key concepts: Bentonite, Adsorption, Chemistry, Ammonium chloride, Ammonium, Nuclear chemistry, Inorganic chemistry, Chemical engineering