Fabrication of cation exchange membrane from polyvinyl alcohol using lignin sulfonic acid: Applications in diffusion dialysis process for alkali recovery
| Autor: | Congliang Cheng, Tongwen Xu, Bin Wu, Dongbo Yu, Kamana Emmanuel, Liang Ge, Muhammad Imran Khan, Noor Ul Afsar, Abhishek N. Mondal |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Ion exchange Process Chemistry and Technology General Chemical Engineering Filtration and Separation 02 engineering and technology General Chemistry Sulfonic acid 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Polyvinyl alcohol 0104 chemical sciences Tetraethyl orthosilicate chemistry.chemical_compound Membrane chemistry Organic chemistry Lignin 0210 nano-technology Selectivity Dialysis (biochemistry) Nuclear chemistry |
| Zdroj: | Separation Science and Technology. 52:1106-1113 |
| ISSN: | 1520-5754 0149-6395 |
| Popis: | We report polyvinyl alcohol (PVA)-based hybrid membranes composed of salt of lignin sulfonic acid (LSA) and tetraethyl orthosilicate. The concentration of LSA with respect to PVA varied from 10% to 40%. The hybrid membranes showed water uptake (WU) in the range of 122–210%, ion exchange capacities in the range of 0.32–0.75 mmol g−1, dialysis coefficient (UOH) from 0.0068 to 0.0119 m h−1, and selectivity (S) from 15 to 26. The hybrid membranes also showed thermal and mechanical stability. |
| Databáze: | OpenAIRE |
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