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Dibasic esters as g...
Dibasic esters as green solvents for PVDF membrane preparation
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- Ismail, Norafiqah (author)
- Umeå universitet,Kemiska institutionen
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- Zhou, Qiuyueming (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, PR China
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- Wang, Qian (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, PR China
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- Cui, Zhaoliang (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, PR China
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- Skoglund, Nils (author)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik
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- Tavajohi, Naser (author)
- Umeå universitet,Kemiska institutionen
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(creator_code:org_t)
- Royal Society of Chemistry, 2023
- 2023
- English.
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In: Green Chemistry. - : Royal Society of Chemistry. - 1463-9262 .- 1463-9270. ; 25:18, s. 7259-7272
- Related links:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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Abstract
Subject headings
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- Solvent toxicity is a major barrier to sustainable fabrication of polymeric membranes. This study introduces three dibasic esters (DBEs) as alternative membrane fabrication solvents that are biodegradable, non-carcinogenic, non-corrosive, and non-hazardous. The use of DBEs in fabrication processes shifts the monotectic point in the phase diagram of PVDF/solvent systems towards higher polymer concentrations, enabling membrane formation by liquid–liquid phase inversion to produce a bicontinuous structure that confers outstanding performance. The best-performing membrane prepared in this way had an exceptional flux of 42.40 kg m−2 h−1 and a high rejection rate (>99%) in the decontamination of synthetic nuclear wastewater. Compared to membranes prepared previously using toxic and non-toxic solvents, membranes fabricated in DBEs exhibited superior mechanical performance due to their bicontinuous structure, which effectively distributes external forces throughout the membrane. Moreover, DBEs are cheaper than toxic conventional solvents and are readily available in bulk, making them attractive options for industrial-scale membrane production.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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