Abstract:
以羟丙基-β-环糊精(HP-β-CD)为水相单体,γ-氨丙基三乙氧基硅烷(KH-550)为添加剂,与均苯三甲酰氯(TMC)在聚砜(PSf)基膜上界面聚合,制备HP-β-CD-TMC/PSf复合纳滤膜.通过FTIR、SEM、AFM和Zeta电位等表征了膜表面的化学组分、形貌及荷电性,探究了不同KH-550含量对PSf复合膜分离性能的影响,并考察了复合膜的耐氯性能.结果 表明,水相中KH-550质量分数为0.15%时,制备的复合纳滤膜亲水性较好,对伊文思蓝(EB)、刚果红(CR)、木质素磺酸钠(SL)的截留率均在90%以上,通量大于54.5 L/(m2·h·MPa).复合膜经10.0 g/L的次氯酸钠(NaClO)浸泡200 h后,其通量和截留率无明显变化,表明该复合膜具有较好的耐氯稳定性.
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膜科学与技术
ISSN: 1007-8924
Year: 2021
Issue: 6
Volume: 41
Page: 118-125
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WoS CC Cited Count: 0
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WanFang Cited Count: -1
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30 Days PV: 3