Volume 42, Issue 6 pp. 1180-1187
Research Article

Branched Polyvinyl Alcohol Hybrid Membrane for Acid Recovery via Diffusion Dialysis

Congliang Cheng

Corresponding Author

Congliang Cheng

Anhui Jianzhu University, School of Material and Chemical Engineering, 856 Jinzhai Road, 230022 Hefei, China

Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, 111 Jiulong Road, 230601 Hefei, China

Correspondence: Congliang Cheng ([email protected]), Anhui Jianzhu University, School of Material and Chemical Engineering, 856 Jinzhai Road, Hefei 230022, Anhui Province, China.Search for more papers by this author
Ping Li

Ping Li

Anhui Jianzhu University, School of Material and Chemical Engineering, 856 Jinzhai Road, 230022 Hefei, China

Search for more papers by this author
Yubin He

Yubin He

University of Science and Technology of China, CAS Key Laboratory of Soft Matter Chemistry, Laboratory of Functional Membranes, School of Chemistry and Material Science, 96 Jinzhai Road, 230026 Hefei, China

Search for more papers by this author
Xianhai Hu

Xianhai Hu

Anhui Jianzhu University, School of Material and Chemical Engineering, 856 Jinzhai Road, 230022 Hefei, China

Search for more papers by this author
Kamana Emmanuel

Kamana Emmanuel

University of Science and Technology of China, CAS Key Laboratory of Soft Matter Chemistry, Laboratory of Functional Membranes, School of Chemistry and Material Science, 96 Jinzhai Road, 230026 Hefei, China

Search for more papers by this author
First published: 14 March 2019
Citations: 14

Abstract

A branched polymer was prepared by grafting allyltrimethylammonium chloride onto polyvinyl alcohol (PVA) via free-radical polymerization. Afterwards, a series of hybrid membranes were prepared by sol-gel cross-linking between quaternary ammonium-PVA and tetraethoxysilane. The obtained membranes were characterized in terms of infrared spectroscopy, ion exchange capacity, water uptake, linear expansion ratio, and acid resistance. The thermal properties of the membranes were investigated as well. The diffusion dialysis performances of the membranes were tested by using a simulated feed solution containing HCl and FeCl2. The diffusion dialysis coefficients and the separation factors were much better than those of the commercial DF-120 membrane.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.