Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 296-302 |
| Seitenumfang | 7 |
| Fachzeitschrift | Nature Sustainability |
| Jahrgang | 3 |
| Frühes Online-Datum | 10 Feb. 2020 |
| Publikationsstatus | Veröffentlicht - Apr. 2020 |
Abstract
Traditional ways of producing drinking water from groundwater, water recycling and water conservation are not sufficient. Seawater desalination would close the gap but the main technology used is thermally driven multi-flash distillation, which is energy consuming and not sustainable. Stacking two-dimensional (2D) nanomaterials into lamellar membranes is a promising technique in the pursuit of both high selectivity and permeance in water desalination. However, 2D membranes tend to swell in water, and increasing their stability in aqueous solution is still challenging. Here, we report non-swelling, MXene membranes prepared by the intercalation of Al3+ ions. Swelling is prevented by strong interactions between Al3+ and oxygen functional groups terminating at the MXene surface. These membranes show excellent non-swelling stability in aqueous solutions up to 400 h and possess high rejection of NaCl (~89.5–99.6%) with fast water fluxes (~1.1–8.5 l m−2 h−1). Such membranes can be easily fabricated by simple filtration and ion-intercalating methods, which holds promise for their scalability.
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- Umweltwissenschaften (insg.)
- Globaler Wandel
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- Umweltwissenschaften (insg.)
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in: Nature Sustainability, Jahrgang 3, 04.2020, S. 296-302.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Effective ion sieving with Ti3C2T x MXene membranes for production of drinking water from seawater
AU - Ding, Li
AU - Li, Libo
AU - Liu, Yanchang
AU - Wu, Yi
AU - Lu, Zong
AU - Deng, Junjie
AU - Wei, Yanying
AU - Caro, Jürgen
AU - Wang, Haihui
N1 - Funding Information: We gratefully acknowledge funding from the Natural Science Foundation of China (21536005, 51621001, 21506066, 21606086 and 21861132013), China Postdoctoral Science Foundation (2019TQ0101, 2019M662920), NSFC-DFG (GZ-678), the Natural Science Foundation of the Guangdong Province (2014A030312007) and Guangdong Natural Science Funds for Distinguished Young Scholar (2017A030306002).
PY - 2020/4
Y1 - 2020/4
N2 - Traditional ways of producing drinking water from groundwater, water recycling and water conservation are not sufficient. Seawater desalination would close the gap but the main technology used is thermally driven multi-flash distillation, which is energy consuming and not sustainable. Stacking two-dimensional (2D) nanomaterials into lamellar membranes is a promising technique in the pursuit of both high selectivity and permeance in water desalination. However, 2D membranes tend to swell in water, and increasing their stability in aqueous solution is still challenging. Here, we report non-swelling, MXene membranes prepared by the intercalation of Al3+ ions. Swelling is prevented by strong interactions between Al3+ and oxygen functional groups terminating at the MXene surface. These membranes show excellent non-swelling stability in aqueous solutions up to 400 h and possess high rejection of NaCl (~89.5–99.6%) with fast water fluxes (~1.1–8.5 l m−2 h−1). Such membranes can be easily fabricated by simple filtration and ion-intercalating methods, which holds promise for their scalability.
AB - Traditional ways of producing drinking water from groundwater, water recycling and water conservation are not sufficient. Seawater desalination would close the gap but the main technology used is thermally driven multi-flash distillation, which is energy consuming and not sustainable. Stacking two-dimensional (2D) nanomaterials into lamellar membranes is a promising technique in the pursuit of both high selectivity and permeance in water desalination. However, 2D membranes tend to swell in water, and increasing their stability in aqueous solution is still challenging. Here, we report non-swelling, MXene membranes prepared by the intercalation of Al3+ ions. Swelling is prevented by strong interactions between Al3+ and oxygen functional groups terminating at the MXene surface. These membranes show excellent non-swelling stability in aqueous solutions up to 400 h and possess high rejection of NaCl (~89.5–99.6%) with fast water fluxes (~1.1–8.5 l m−2 h−1). Such membranes can be easily fabricated by simple filtration and ion-intercalating methods, which holds promise for their scalability.
UR - http://www.scopus.com/inward/record.url?scp=85079447905&partnerID=8YFLogxK
U2 - 10.1038/s41893-020-0474-0
DO - 10.1038/s41893-020-0474-0
M3 - Article
AN - SCOPUS:85079447905
VL - 3
SP - 296
EP - 302
JO - Nature Sustainability
JF - Nature Sustainability
ER -