Polyetherimide/hydrolysed PIAM blend NF membranes have been prepared and characterized. The PEI/hydrolysed PIAM composition of 80 : 20 showed very good salt rejection (sodium sulphate) up to 76% with a pure water flux of 11.8 L m ⁻² h ⁻¹ . This study provides a simple and effective approach to produce negatively charged NF membranes for water desalination applications with low energy consumption.
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Hebbar et al. (2014) studied this question.
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