Effect of hydrophobized PET TeMs membrane pore-size on saline water treatment by direct contact membrane distillation.

Autor:	Yeszhanov AB; The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan a.yeszhanov@inp.kz.; Laboratory of Engineering Profile, L. N. Gumilyov Eurasian National University 010008 Astana Kazakhstan., Korolkov IV; The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan a.yeszhanov@inp.kz.; Laboratory of Engineering Profile, L. N. Gumilyov Eurasian National University 010008 Astana Kazakhstan., Güven O; Department of Chemistry, Hacettepe University 06800 Ankara Turkey., Melnikova GB; A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus 220072 Minsk Belarus., Dosmagambetova SS; Laboratory of Engineering Profile, L. N. Gumilyov Eurasian National University 010008 Astana Kazakhstan., Borissenko AN; JSC 'Park of Nuclear Technologies' Kurchatova Str. 18/1 Kurchatov Kazakhstan., Nurkassimov AK; JSC 'Park of Nuclear Technologies' Kurchatova Str. 18/1 Kurchatov Kazakhstan., Kassymzhanov MT; JSC 'Park of Nuclear Technologies' Kurchatova Str. 18/1 Kurchatov Kazakhstan., Zdorovets MV; The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan a.yeszhanov@inp.kz.; Laboratory of Engineering Profile, L. N. Gumilyov Eurasian National University 010008 Astana Kazakhstan.
Jazyk:	angličtina
Zdroj:	RSC advances [RSC Adv] 2024 Jan 29; Vol. 14 (6), pp. 4034-4042. Date of Electronic Publication: 2024 Jan 29 (Print Publication: 2024).
DOI:	10.1039/d3ra07475g
Abstrakt:	This paper describes the desalination process by membrane distillation (MD) using track-etched membranes (TeMs). Hydrophobic track-etched membranes based on poly(ethylene terephthalate) (PET TeMs) with pore diameters from 700 to 1300 nm were prepared by UV-initiated graft polymerization of lauryl methacrylate (LMA) inside the nanochannels. Modified PET TeMs were investigated by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and contact wetting angle (CA) measurements. Hydrophobic PET TeMs were tested for treating saline solutions of different concentrations by the direct contact membrane distillation (DCMD) method. The influence of membrane pore diameter and salt solution concentration on the water flux and rejection degree were investigated. Membranes with CA 94 ± 4° were tested in the direct contact membrane distillation (DCMD) of 7.5-30 g L -1 saline solution. Hydrophobic membranes with large pore sizes showed water fluxes in the range of 1.88 to 11.70 kg m -2 h -1 with salt rejection values of up to 91.4%. Competing Interests: The authors declare no conflict of interest. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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