RCEES OpenIR  > 环境水质学国家重点实验室
Improved permeability of tight acid resistant nanofiltration membrane via citric acid post-treatment
Yu, Ling; Li, Kuiling; Zhang, Yong; Wang, Jun; Zhang, Guoliang
2022-04-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume648Issue:0Pages:120381
AbstractDevelopment of acid resistant nanofiltration membranes (ARNFMs) with high metal rejection, high flux and low molecule weight cut-off (MWCO) remains a big challenge. The separation performance of polyamine ARNFM is partially limited by the dense structure caused by the high concentration of organic phase solution. Herein, in this work, a novel effective post-treatment of citric acid (CA) was utilized to further improve the separation property of dually charged polyamine ARNFMs with low MWCO. An appropriate CA post-treatment (1.5 mol/L, 30 min, 65 degrees C) could gently remove off the oligomers and CA molecules would react with the redundant protonated/non-protonated amino, imine and hydroxyl groups of the polyamine NFM. Therefore,after the post-treatment, the membrane flux was enhanced 7.1 times with a high MgCl2 rejection (97.6%) and a low MWCO around 220 Da. Furthermore, CA post-treatment not only had no significant influence on the acid stability of this membrane, but would also protect the membrane from the drastic effect of HCl (hydrolyze-Cl into -OH) in turn. All the results indicated that CA post-treatment has positive effects on polyamine ARNFMs, and the resulted dually charged polyamine ARNFMs have a good application potential for acidic wastewater treatment.
Department环境水质学国家重点实验室 ; 环境水质学国家重点实验室
KeywordCELLULOSE-BASED HYDROGELS FILM COMPOSITE MEMBRANE NAPHTHALENE-1,3,6-TRISULFONYLCHLORIDE NTSC INTERFACIAL POLYMERIZATION PH POLYETHYLENEIMINE POLYSULFONAMIDE CHLORIDE LAYER
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47704
Collection环境水质学国家重点实验室
Corresponding AuthorWang, Jun
Affiliation1.Zhejiang Univ Technol, Inst Ocean & Environm Chem Engn, Ctr Membrane & Water Sci & Technol, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Zhejiang, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, 18 Shuangqing Rd, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu, Ling,Li, Kuiling,Zhang, Yong,et al. Improved permeability of tight acid resistant nanofiltration membrane via citric acid post-treatment[J]. JOURNAL OF MEMBRANE SCIENCE,2022,648(0):120381.
APA Yu, Ling,Li, Kuiling,Zhang, Yong,Wang, Jun,&Zhang, Guoliang.(2022).Improved permeability of tight acid resistant nanofiltration membrane via citric acid post-treatment.JOURNAL OF MEMBRANE SCIENCE,648(0),120381.
MLA Yu, Ling,et al."Improved permeability of tight acid resistant nanofiltration membrane via citric acid post-treatment".JOURNAL OF MEMBRANE SCIENCE 648.0(2022):120381.
Files in This Item: Download All
File Name/Size DocType Version Access License
Improved permeabilit(8260KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yu, Ling]'s Articles
[Li, Kuiling]'s Articles
[Zhang, Yong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yu, Ling]'s Articles
[Li, Kuiling]'s Articles
[Zhang, Yong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yu, Ling]'s Articles
[Li, Kuiling]'s Articles
[Zhang, Yong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Improved permeability of tight acid resistant nanofiltration membrane via citric acid post-treatment.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.