Studies on Cellulose-based Magnetic Polyamidoxime Adsorbents——Copper Chloride Adsorbed by Alkali-treated Resin

Abstract

Abstract: Cu²⁺ ions can be adsorbed by alkaline cellulose-based magnetic polyamidoxime adsorbent(BMAO). After contact for 20 min, the adsorption capacity and the binding ratio were found to be 0.69 and 0.59, respectively, and then the adsorption rate decreases suddenly. It is considered that the reaction is going into the next stage. The results of adsorption kinetics and the observation of SEM suggested that CuCl₂ was adsorbed by BMAO to give a bidentate chelate, and the redox reaction took place between them afterwards. The results obtained by the variation of CuCl₂ concentration or liquid-solid proportion show that BMAO is suitable for CuCl₂ uptake from dilute solution and adsorption on a large-scale.

Key words: Cellulose-based adsorbent, Polyamidoxime, Adsorption, Copper chloride, Redox reaction

CLC Number:

O647.32

TrendMD:

YANG Chao-Xiong, WU Jin-Yuan. Studies on Cellulose-based Magnetic Polyamidoxime Adsorbents——Copper Chloride Adsorbed by Alkali-treated Resin[J]. Chem. J. Chinese Universities, 1998, 19(3): 419.

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Studies on Cellulose-based Magnetic Polyamidoxime Adsorbents——Copper Chloride Adsorbed by Alkali-treated Resin

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