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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of a novel poly(ether sulfone) adsorptive ultrafiltration membrane containing a crosslinked quaternary chitosan salt and chromate removal
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Preparation of a novel poly(ether sulfone) adsorptive ultrafiltration membrane containing a crosslinked quaternary chitosan salt and chromate removal

机译：Preparation of a novel poly(ether sulfone) adsorptive ultrafiltration membrane containing a crosslinked quaternary chitosan salt and chromate removal

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摘要

To improve the removal performance of low-concentration hexavalent chromium Cr(VI) in the ultrafiltration (UF) process, adsorptive UF membranes were prepared from suspensions consisting of poly(ether sulfone), N, N-dimethylacetamide, poly(vinyl pyrrolidone), and crosslinked quaternary chitosan salt (CQS). The results show that the contact angle of the membrane increased from 67 to 838 when the content of CQS was changed from 0 to 10 wt . Meanwhile, the initial rejection of bovine serum albumin decreased from 90 to 61, and the pure water fluxes of the membranes showed no obvious change. The rejection of Cr(VI) increased from 20 to 87 when the content of CQS was changed from 0 to 10 wt in the membrane. Adsorptive UF membranes could be generated by a 1 mol/L solution of NaCl. The adsorption data were more applicable for a pseudo-second-order kinetic model and the Langmuir isotherm model. (C) 2017 Wiley Periodicals, Inc.

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