电喷雾法构筑MOFs/壳聚糖荷正电纳滤膜

TQ028.8; 将壳聚糖的直接成膜性与电喷雾技术结合,并引入金属有机骨架(MOFs),制备了NH2-UIO-66(Zr)/壳聚糖荷正电纳滤膜这一种复合膜,实现对Ni2+的高效分离和富集.通过电喷雾技术可有效解决传统壳聚糖纳滤膜成膜周期长、膜层较厚、通量较低等问题.实验表明,与传统涂覆工艺相比,电喷雾法制备的壳聚糖复合膜在保持较高截留率的情况下,渗透性提高了634％.然而,单一壳聚糖基质膜受trade-off效应影响,分离性能难以进一步提升.引入NH2-UIO-66(Zr)作为填料可有效缓解trade-off效应,所制备的复合膜在不牺牲截留率的情况下,相对于单一基质膜,其水通量进一步提升了38...

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Published in华东理工大学学报（自然科学版） Vol. 48; no. 5; pp. 616 - 623
Main Authors 龚信瑀, 杨峥, 刘璨, 王晓暄, 马晓华
Format Journal Article
LanguageChinese
Published 华东理工大学化工学院,上海 200237 20.10.2022
Subjects
壳聚糖
纳滤膜
金属有机骨架
电喷雾
Online AccessGet full text
ISSN1006-3080
DOI10.14135/j.cnki.1006-3080.20210609002

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Abstract TQ028.8; 将壳聚糖的直接成膜性与电喷雾技术结合,并引入金属有机骨架(MOFs),制备了NH2-UIO-66(Zr)/壳聚糖荷正电纳滤膜这一种复合膜,实现对Ni2+的高效分离和富集.通过电喷雾技术可有效解决传统壳聚糖纳滤膜成膜周期长、膜层较厚、通量较低等问题.实验表明,与传统涂覆工艺相比,电喷雾法制备的壳聚糖复合膜在保持较高截留率的情况下,渗透性提高了634％.然而,单一壳聚糖基质膜受trade-off效应影响,分离性能难以进一步提升.引入NH2-UIO-66(Zr)作为填料可有效缓解trade-off效应,所制备的复合膜在不牺牲截留率的情况下,相对于单一基质膜,其水通量进一步提升了38％,最终为4.7×10?5 L/(m2·h·Pa),对NiCl2截留率为92％.
AbstractList TQ028.8; 将壳聚糖的直接成膜性与电喷雾技术结合,并引入金属有机骨架(MOFs),制备了NH2-UIO-66(Zr)/壳聚糖荷正电纳滤膜这一种复合膜,实现对Ni2+的高效分离和富集.通过电喷雾技术可有效解决传统壳聚糖纳滤膜成膜周期长、膜层较厚、通量较低等问题.实验表明,与传统涂覆工艺相比,电喷雾法制备的壳聚糖复合膜在保持较高截留率的情况下,渗透性提高了634％.然而,单一壳聚糖基质膜受trade-off效应影响,分离性能难以进一步提升.引入NH2-UIO-66(Zr)作为填料可有效缓解trade-off效应,所制备的复合膜在不牺牲截留率的情况下,相对于单一基质膜,其水通量进一步提升了38％,最终为4.7×10?5 L/(m2·h·Pa),对NiCl2截留率为92％.
Author 龚信瑀
杨峥
王晓暄
刘璨
马晓华
AuthorAffiliation 华东理工大学化工学院,上海 200237
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MA Xiaohua
WANG Xiaoxuan
GONG Xinyu
YANG Zheng
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  fullname: 马晓华
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纳滤膜
金属有机骨架
电喷雾
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Title 电喷雾法构筑MOFs/壳聚糖荷正电纳滤膜
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