Article ID Journal Published Year Pages File Type
147082 Chemical Engineering Journal 2014 9 Pages PDF
Abstract

•PANI/GO composites present excellent selective adsorption properties for U(VI).•Adsorption capacities of PANI/GO composites achieve to 1960 mg/g at pH 5.0.•PANI/GO composites present ideal tolerance to high salt concentrations.•PANI/GO composites present excellent regeneration–reuse property.

In this paper, polyaniline modified graphene oxide (PANI/GO) composites were synthesized by in situ polymerization technique, and applied to preconcentrate U(VI) from aqueous solutions. The PANI/GO composites have exceptionally capability in selective extraction of U(VI) from aqueous solution under a variety of conditions. The maximum adsorption capacities of PANI/GO composites for U(VI) achieve to 1960 mg/g at pH 5.0 and 610 mg/g at pH 3.5, which are two orders of magnitude higher than those of traditional adsorbents and today’s nanomaterials. PANI/GO composites also present ideal tolerance to high salt concentrations and excellent regeneration–reuse property. Thereby, PANI/GO composites have exceptional potential applications in the extraction of U(VI) from aqueous solution in nuclear fuel achievement and for U(VI) environmental pollution cleanup.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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