Preparation and Application of Electrospinning Membranes of Thermoplastic Carboxymethyl Cellulose /PLA for Removal of Cu~(2+) from Aqueous Solutions

摘要

A composite membrane of thermoplastic carboxymethyl cellulose (TCMC) /PLA was prepared by electrospinning process, and crossliked by epichlorohydrin solution at different temperature. The cross-linking temperature was optimized by characterizing the morphology and tensile strength of the film. The optimal cross-linking temperature was 50℃. A composite membrane was used to remove Cu~(2+) from aqueous solutions, and the effects of initial concentration of Cu~(2+) and contact time on the removal efficiency of Cu~(2+) were investigated. The removal efficiency of Cu~(2+) was 13.78%, at the initial concentration of 40 mg·L~(-1) and contact time of 30s.