Publication Type Journal Article
Title The Role of Silver Nanoparticles on Mixed Matrix Ag/Cellulose Acetate Asymmetric Membranes
Authors Shirish H. Sonawane Antonine Terrien Ana Sofia Figueiredo M. Clara Gonçalves Maria Norberta de Pinho
Groups
Journal POLYMER COMPOSITES
Year 2017
Month January
Volume 38
Number 1
Pages 32-39
Abstract Mixed matrix asymmetric membranes were prepared by the addition of silver nanoparticles to cellulose acetate/ acetone/formamide casting solutions with ratios acetone/formamide varying from 1.44 to 2.77 to prepare ultrafiltration/nanofiltration membranes covering a wide range of hydraulic permeabilities. Binding of the silver nanoparticles to the polymer matrix is revealed through comparison of the FTIR spectra of the cellulose acetate and the Ag/cellulose acetate membranes. In the later, there is a decrease of the ratio between the bands intensities at 2,000-2500 cm(-1). Membrane surface charge of the mixed matrix membranes varies with the pore size and pH, and when compared with cellulose acetate membranes there is a decrease of the negative surface charge densities. The silver nanoparticles in all mixed matrix membranes results in an enhancement of the hydraulic permeabilities, ranging from 10.8 kg m(-2) h(-1) bar(-1) to 67.1 kg m(-2) h(-1) bar(-1). POLYM. COMPOS., 38: 32-39, 2017. (C) 2015 Society of Plastics Engineers
DOI http://dx.doi.org/10.1002/pc.23557
ISBN
Publisher WILEY
Book Title
ISSN 0272-8397
EISSN 1548-0569
Conference Name
Bibtex ID ISI:000396395800005
Observations
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