Article ID Journal Published Year Pages File Type
221584 Journal of Environmental Chemical Engineering 2016 8 Pages PDF
Abstract

A low-cost and environmentally friendly calcium alginate aerogel (CAA) was prepared by freeze-drying method, characterized, and evaluated for removal of Pb2+ from water. Experimental results indicate that the CAA shows high selectivity and adsorption capacity for Pb2+. Relative selectivity coefficients for Pb2+ over other metal ions are all over 10. The CAA can also adsorb 96.4% of Pb2+ in aqueous solution. The maximum adsorption capacity of CAA for Pb2+ is 390.7 mg/g, which is higher than that of other reported adsorbents. Moreover, the CAA can be regenerated by simple acid treatment and used repeatedly without loss in performance.

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