TY - JOUR
T1 - Green Synthesis of Thin-Film Composite Membranes for Organic Solvent Nanofiltration
AU - Ong, Chi Siang
AU - Falca, Gheorghe
AU - Huang, Tiefan
AU - Liu, Jiangtao
AU - Manchanda, Priyanka
AU - Chisca, Stefan
AU - Nunes, Suzana Pereira
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1057-01-01, REP/1/3848-01-01
Acknowledgements: This work was sponsored by the King Abdullah University of Science and Technology (KAUST), grants BAS/1/1057-01-01 and REP/1/3848-01-01.
PY - 2020/6/4
Y1 - 2020/6/4
N2 - Membrane-based liquid filtration systems are key process engineering platforms for chemical industry, particularly for solvent intensive processes. While they are used in large-scale for desalination, water treatment and in the food industry, polymeric membranes are mostly fabricated from solutions in organic solvents with concerning toxicity. Herein, we report a green fabrication method using decanoic acid as an alternative green solvent. The low vapor pressure, relative to common organic solvents, reduces the toxicity and the harm to the environment. The decanoic acid was used to dissolve trimesoyl chloride and reacted with polyethylenimine in the aqueous solution via an interfacial polymer reaction to produce a thin film composite membrane. The resultant membrane had high permeances for water (~52 L m-2 h-1 bar-1) and organic solvents (16 to 124 L m-2 h-1 bar-1) and selectivity in the nanofiltration range. Therefore, our method of membrane preparation can offer an excellent and green platform for molecular separations for the chemical and biochemistry industry.
AB - Membrane-based liquid filtration systems are key process engineering platforms for chemical industry, particularly for solvent intensive processes. While they are used in large-scale for desalination, water treatment and in the food industry, polymeric membranes are mostly fabricated from solutions in organic solvents with concerning toxicity. Herein, we report a green fabrication method using decanoic acid as an alternative green solvent. The low vapor pressure, relative to common organic solvents, reduces the toxicity and the harm to the environment. The decanoic acid was used to dissolve trimesoyl chloride and reacted with polyethylenimine in the aqueous solution via an interfacial polymer reaction to produce a thin film composite membrane. The resultant membrane had high permeances for water (~52 L m-2 h-1 bar-1) and organic solvents (16 to 124 L m-2 h-1 bar-1) and selectivity in the nanofiltration range. Therefore, our method of membrane preparation can offer an excellent and green platform for molecular separations for the chemical and biochemistry industry.
UR - http://hdl.handle.net/10754/663466
UR - https://pubs.acs.org/doi/10.1021/acssuschemeng.0c02320
U2 - 10.1021/acssuschemeng.0c02320
DO - 10.1021/acssuschemeng.0c02320
M3 - Article
SN - 2168-0485
JO - ACS Sustainable Chemistry & Engineering
JF - ACS Sustainable Chemistry & Engineering
ER -