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ClassificationCode:TQ028.8 |
year,volume(issue):pagination: 2020,40(1):117-122 |
Abstract: |
Herein, three carbohydrate doped thin film composite nanofiltration membranes were successfully fabricated via interfacial polymerization method used a mixed solution of PIP/glucose or PIP/sucrose or PIP/raffinose as the aqueous phase and trimesoyl chloride as the organic phase. Among them, the sucrose-doped nanofiltration membrane (PS) performed the best properties. Moreover, the effects of different ratios of sucrose and PIP on the membrane permeability and separation performance were observed. The micro-structure, surface wettability and surface charge characteristics of the PS membrane were characterized. The results showed the apparent structure of PS was changed, and the roughness and the thickness of the PA layer were both reduced, while the surface hydrophilicity was improved by adding sucrose in the membrane. In addition, the outstanding permeability of PS was observed with the increasing ratio of sucrose. And when the sucrose concentration reached 0.8 wt%, the rejection of Na2SO4 remained at 99.1%, while the pure water flux reached 9.7 LMH?bar-1, which was 86% higher than the original TFC membrane. |
Funds: |
国家科技部支撑计划项目(2014BAB07B01和2015BAB09B01) |
AuthorIntro: |
第一作者简介:沈倩(1991-),女,浙江丽水,博士研究生在读,主要从事纳滤膜制备及其水处理研究工作,Email: 445655147@qq.com |
Reference: |
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