| Title | Fabrication and evaluation of effective zeolite membranes for water desalination |
| Authors | Wang, Yanju Rong, Huazhen Sun, Lei Zhang, Panpan Yang, Yuting Jiang, Lingchang Wu, Sheng Zhu, Guangshan Zou, Xiaoqin |
| Affiliation | Northeast Normal Univ, Fac Chem, Changchun 130024, Peoples R China Shandong Univ, Inst Frontier & Interdisciplinary Sci, Inst Mol Sci & Engn, Qingdao 266237, Peoples R China Peking Univ, Sch Phys, State Key Lab Artificial Microstruct & Mesoscop P, Beijing 100871, Peoples R China Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China Harbin Engn Univ, Yantai Res Inst, Yantai 264006, Peoples R China Harbin Engn Univ, Grad Sch, Yantai 264006, Peoples R China |
| Issue Date | 15-May-2021 |
| Publisher | DESALINATION |
| Abstract | Three dense and crack-free membranes of MFI, LTA and AEI typed zeolites were fabricated respectively on porous stainless-steel nets using the seeded growth method. Experiments in couple with simulations were used to investigate water adsorption behaviors in zeolites. The pervaporation desalination of saltwater was evaluated experimentally on the as-prepared membranes at 1.0 atm feed side pressure. Based on the size-exclusion effect, the three zeolite membranes exhibited excellent ion rejection degrees (>99%). The water permeability was improved with increasing testing temperature without ion rejection sacrifice. Moreover, the reversible water uptakes calculated using adsorption-desorption isotherms played a critical influence on water mobility in the zeolite pores. As a result, higher reversible water uptake contributed to facilitate the transport of water molecules across zeolite membranes, evidenced by the water permeability sequence of AEI > LTA > MFI membranes in saltwater desalination. It is clear that reversible water uptake is an important distinction governing water permeability in the pervaporation desalination process, which will provide guidance to select desalination membrane materials for future research. |
| URI | http://hdl.handle.net/20.500.11897/605786 |
| ISSN | 0011-9164 |
| DOI | 10.1016/j.desal.2021.114974 |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 人工微结构和介观物理国家重点实验室 |
