Green Synthesis of Thin-Film Composite Membranes for Organic Solvent Nanofiltration
AuthorsOng, Chi Siang
Nunes, Suzana Pereira
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Environmental Science and Engineering Program
Nanostructured Polymeric Membrane Lab
Online Publication Date2020-06-04
Print Publication Date2020-08-10
Embargo End Date2021-06-04
Permanent link to this recordhttp://hdl.handle.net/10754/663466
MetadataShow full item record
AbstractMembrane-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.
CitationOng, C., Falca, G., Huang, T., Liu, J., Manchanda, P., Chisca, S., & Nunes, S. P. (2020). Green Synthesis of Thin-Film Composite Membranes for Organic Solvent Nanofiltration. ACS Sustainable Chemistry & Engineering. doi:10.1021/acssuschemeng.0c02320
SponsorsThis 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.
PublisherAmerican Chemical Society (ACS)