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2006•Journal of Huaihai Institute of TechnologyRequires access

A Study on Nickel Ions Adsorbed by Chitosan Loaded Bentonite

Gong Wen-qi

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Abstract

A composite adsorbent, Chitosan Loaded Bentonite (CLB), is obtained by loading chi-tosan on the bentonite. The adsorbent has exhibited good efficiency in the adsorption experiment of Ni2+. According to the experiment results, when the mass of CLB is 0.5 g and the initial concentration of Ni2+ 10 mg/L, the removal ratio of Ni2+ comes up to 99% at the optimal conditions. FT-IR spectra show that Ni2+ has substituted the metal ions in the bentonite and the chitosan combined on the bentonite is also involved in the reaction at active site-NH2.

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What this paper is about

A composite adsorbent, Chitosan Loaded Bentonite (CLB), is obtained by loading chi-tosan on the bentonite. The adsorbent has exhibited good efficiency in the adsorption experiment of Ni2+. According to the experiment results, when the mass of CLB is 0.5 g and the initial concentration of Ni2+ 10 mg/L, the removal ratio of Ni2+ comes up to 99% at the optimal conditions. FT-IR spectra show that Ni2+ has substituted the metal ions in the bentonite and the chitosan combined on the bentonite is also involved in the reaction at active site-NH2.

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Available abstract

A composite adsorbent, Chitosan Loaded Bentonite (CLB), is obtained by loading chi-tosan on the bentonite. The adsorbent has exhibited good efficiency in the adsorption experiment of Ni2+. According to the experiment results, when the mass of CLB is 0.5 g and the initial concentration of Ni2+ 10 mg/L, the removal ratio of Ni2+ comes up to 99% at the optimal conditions. FT-IR spectra show that Ni2+ has substituted the metal ions in the bentonite and the chitosan combined on the bentonite is also involved in the reaction at active site-NH2.

Key concepts: Bentonite, Chitosan, Adsorption, Nickel, Metal ions in aqueous solution, Metal, Chemistry, Nuclear chemistry

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