A chitosan-separation-layer nanofiltration membrane prepared through homogeneous hybrid and copper ion enhancement
A chitosan-separation-layer nanofiltration membrane prepared through homogeneous hybrid and copper ion enhancement
复制标题
均相杂化和铜离子增强制备壳聚糖分离层纳滤膜
DOI：
10.1016/j.seppur.2019.116084
复制
发表时间：
2020-03
影响因子：
8.6
通讯作者：
Li Jian-xin
中科院分区：
文献类型：
--
作者：
Zhao Guo-biao;Hao Yu-fan;He Ben-qiao;Song Yun-fei;Ji Yan-hong;Zhang Yu-hong;Bo Liao;Li Jian-xin
A novel method of homogeneous hybrid and copper ion (Cu(II)) enhancement was employed to prepare chitosan separation layer over polyacrylonitrile support. Firstly, chitosan nanoparticles (CSPs) and free chitosan molecules in the suspension prepared through adding sodium polyphosphate (SPP) into chitosan solution were simultaneously electrostatically attracted onto the surface of alkali-treated polyacrylonitrile (mPAN) support to obtain chitosan separation layer (CSPM) that was homogeneously hybrided by CSPs. Then, CSPM/mPAN membrane obtained was immersed into CuSO4solution for chelation cross-linking to obtain CSPM-Cu(II)/mPAN membrane. Results showed the ratio of chitosan to SPP and Cu(II) chelation had markedly affected on the membrane performance. When the ratio of chitosan to SPP was 3.4, CSPM3.4-Cu(II)/mPAN membrane had a Na2SO4rejection of 93.3% with a pure water flux of 74.8 L/(m2·h), simultaneously increasing by 30.3% rejection and 24.0% flux compared with CSPM3.4/mPAN membrane due to improvement of hydrophilicity and cross-linking degree resulted from Cu(II) enhancement. CSPM3.4-Cu(II)/mPAN membrane showed 3.6 fold flux and almost the same rejection compared with chitosan nanofiltration membrane by interfacial cross-linking reported. Meanwhile, CSPM3.4-Cu(II)/mPAN membrane exhibited 100% anti-bacteria to Escherichia coli, 96.1% flux recovery rate and separation stability. This work provides a new way for nanofiltration membrane preparation and performance improvement.
登录
查看更多内容
通过协同酰亚胺化优化制备具有高选择性和性能稳定性的带负电的聚酰亚胺纳滤膜
影响因子：
9.5
作者：
Chenjie Wei;Zhifu He;Ligang Lin;Qi Cheng;Kai Huang;Sisi Ma;Li Chen
通讯作者：
Li Chen
DOI：
--
发表时间：
2016
期刊：
--
影响因子：
--
作者：
Shuang-Mei Xue;Zhen-liang Xu;Yong-Jian Tang;Chen-Hao Ji
通讯作者：
Shuang-Mei Xue;Zhen-liang Xu;Yong-Jian Tang;Chen-Hao Ji
抗菌环保空气过滤用壳聚糖/聚乙烯醇共混膜
影响因子：
11.2
作者：
Wang, Zhen;Yan, Feng;He, Benqiao
通讯作者：
He, Benqiao
一种基于多孔 PAN UF 膜上聚乙烯亚胺层磷酸化和交联的新型松散 NF 膜
影响因子：
9.5
作者：
Li, Ping;Wang, Zhan;Khan, Bushra
通讯作者：
Khan, Bushra
DOI：
10.1021/jp102707z
发表时间：
2010-06
期刊：
The journal of physical chemistry. B
影响因子：
--
作者：
Qiang Zhao;Quan‐Fu An;Zhiwei Sun;J. Qian;Kueir-Rarn Lee;Cong-jie Gao;J. Lai
通讯作者：
Qiang Zhao;Quan‐Fu An;Zhiwei Sun;J. Qian;Kueir-Rarn Lee;Cong-jie Gao;J. Lai