کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
623239 1455335 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
PEGylation and incorporation of triazine ring into thin film composite reverse osmosis membranes for enhancement of anti-organic and anti-biofouling properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
PEGylation and incorporation of triazine ring into thin film composite reverse osmosis membranes for enhancement of anti-organic and anti-biofouling properties
چکیده انگلیسی
An approach for the simultaneous enhancement of anti-organic and anti-biofouling properties of polyamide thin film composite (TFC) reverse osmosis (RO) membranes is reported. In situ incorporation of both triazine ring and polyethylene glycol (PEG) into the polyamide network yielded such TFC membranes. The polyamide active layer was fabricated on top of polysulfone support membrane via interfacial polymerization (IFP) between conventionally used trimesoyl chloride (TMC) and mixture of m-phenylenediamine (MPD), melamine and MPD-terminated PEG (MeO-PEG-MPD). The membrane prepared by MPD/melamine/MeO-PEG-MPD exhibited superior overall antifouling properties compared to membrane prepared by MPD/melamine or MPD as sole amine monomer. It turned out that the incorporated PEG enhances anti-organic fouling property and reduces the bacterial adhesion whereas triazine ring only lowers the growth of bacteria on TFC membrane surface. The membrane containing both triazine ring and PEG exhibited pronounced effect on reducing bacterial adhesion than that of membrane containing triazine alone. TFC membrane prepared by IFP between TMC (0.125%, w/v) and mixture of MPD + melamine + MeO-PEG-MPD (MPD:melamine:MeO-PEG-MPD = 1:1:0.5 w/w) exhibited enhanced overall antifouling property with permeate flux ca. 38 Lm− 2 h− 1 and NaCl rejection ca. 93% from feed solution (containing 2000 ppm NaCl) at applied pressure 1.4 MPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 360, 16 March 2015, Pages 108-117
نویسندگان
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