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Abstract
Adsorption desalination and membrane distillation are the only thermally driven desalination technologies that can be undertaken at temperatures below 70°C. Adsorption desalination is based on an adsorber whose performance primarily depends on the properties of the water sorbent. Water sorption ionogel represents a novel class of materials offering a large working capacity for desalination. In this study, water-sorptive ionogels were prepared and their
hydrothermal stability was assessed. The results show that Syloid 72FP silica-based ionogels are hydrothermally stable. The ionic liquid EMIM Ac can be tightly confined in silica at amounts of up to 50 wt% and still withstand high relative humidity and temperature swings. Water uptake of the synthesized ionogel can be up to 1.64 gwater gionogel-1 at 90% RH, which is ~3 times of that of Syloid 72FP silica and ~4 times of that of activated carbon. The EMIM Ac/Syloid 72FP ionogel thus exhibits features appropriate for adsorption desalination systems.
hydrothermal stability was assessed. The results show that Syloid 72FP silica-based ionogels are hydrothermally stable. The ionic liquid EMIM Ac can be tightly confined in silica at amounts of up to 50 wt% and still withstand high relative humidity and temperature swings. Water uptake of the synthesized ionogel can be up to 1.64 gwater gionogel-1 at 90% RH, which is ~3 times of that of Syloid 72FP silica and ~4 times of that of activated carbon. The EMIM Ac/Syloid 72FP ionogel thus exhibits features appropriate for adsorption desalination systems.
Original language | English |
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Article number | 116186 |
Journal | Energy |
Early online date | 24 Sep 2019 |
DOIs | |
Publication status | E-pub ahead of print - 24 Sep 2019 |
Keywords
- ionic liquid
- silica
- ionogel
- adsorption desalination
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Dive into the research topics of 'Hydrothermal stability of water sorption ionogels'. Together they form a unique fingerprint.Projects
- 1 Finished
Research output
- 1 Article
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Solar powered adsorption desalination for Northern and Southern Europe
Olkis, C., AL-Hasni, S., Brandani, S., Vasta, S. & Santori, G., 18 May 2021, (E-pub ahead of print) In: Energy. 120942.Research output: Contribution to journal › Article › peer-review
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