Journal of Membrane Science & Technology

Three-dimensional network structure architecture via UV irradiation in cation exchange membranes for electrodialysis applications

2^nd International Conference on Membrane Science and Technology

September 13-14, 2018 | London, UK

Jiangnan Shen and Jiajie Zhu

Zhejiang University of Technology, China

Scientific Tracks Abstracts: J Membr Sci Technol

Abstract:

UV cross-linked sulphonated polysulfone cation exchange membrane with degree of sulfonation of 60%, owning distinct three-dimensional network structure due to containing additives with different number of acrylate groups were prepared via UV irradiation and tape casting in a self-made mold. Addition of crosslinkers increases the density and smoothen the membrane surface, especially with the number of acrylate groups increasing, improving anti-swelling property significantly, not at the expense of sulfonic acid groups. Actually, addition of dipentaerythritol penta-/hexa-acrylate achieves the idealized swell ration at 2.15% at 250C, which is suitable in higher temperature. Besides, the impact of synthesis sequence between crosslinking and evaporating solvent on membrane performance was investigated. Excellent electrochemical performance of crosslinked membranes compared to the uncross-linked indicating that adjusting structure in membranes has important potential in electrodialysis applications. Recent Publications: 1. Ruan H, Zheng Z, Pan J, et al. (2018) Mussel-inspired sulfonated polydopamine coating on anion exchange membrane for improving perm selectivity and anti-fouling property. Journal of Membrane Science 550:427???435. 2. Zhao Y, Zhu J, Ding J, et al. (2018) Electric-pulse layer-by-layer assembled of anion exchange membrane with enhanced monovalent selectivity. Journal of Membrane Science 548:81???90. 3. Liu H, Jiang Y, Ding J, et al. (2017) Surface layer modification of AEMs by infiltration and photo cross-linking to induce monovalent selectivity. Aiche Journal 64. 4. Liu H, Ruan H, Zhao Y, et al. (2017) A facile avenue to modify polyelectrolyte multilayers on anion exchange membranes to enhance monovalent selectivity and durability simultaneously. Journal of Membrane Science 543. 5. Chen X, Jiang Y, Yang S, et al. (2017) Internal cross-linked anion exchange membranes with improved dimensional stability for electrodialysis. Journal of Membrane Science 542.

Biography :

Jiangnan Shen is a Professor, Doctoral Tutor and the Deputy Director in the Center for Membrane Separation and Water Science & Technology at Zhejiang University of Technology. He completed PhD from Zhejiang University in 2005 and was successively in Zhejiang University of Technology, University of Leuven and the Rutgers University, United States as a Postdoctoral Fellow and Visiting Scholar. His research interests include advanced functional membrane materials, comprehensive utilization of seawater, special separation membrane and its application. In recent years, he has published more than 40 papers in Environmental Science & Technology, Journal of Materials Chemistry A, Journal of Hazardous Materials, Journal of Membrane Science, Chemical Engineering Journal, ACS Sustainable Chemistry & Engineering, Crystal Growth & Design, Separation and Purification Technology, Industrial & Engineering Chemistry Research and other international magazines, co-published three monographs and won eight invention patents.

E-mail: shenjn@zjut.edu.cn