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Thin film composite RO membranes were prepared by coating polyamide over two polysulfone membranes having average pore size distributions of 0.07 and 0.15μm, respectively. The former TFC membrane designated as Type 1 shows superior salt rejection efficiency over that found with the latter TFC membrane designated as Type 2 (S/R=96% for Type 1 versus 65% for Type 2). ATR-IR studies suggest a two-fold...
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