Investigation of the performance and structure of high-performance FeCl2·4H2O/polysulfate(PSE)ultrafiltration membranes
Preparation of FeCl2·4H2O/PSE hollow fiber blended ultrafiltration membrane by non-solvent-induced phase separation(NIPS)method using FeCl2·4H2O as modifier.The effects of FeCl2·4H2O content on the microstructure,retention performance and mechanical properties of FeCl2·4H2O/PSE hollow fiber blended ultrafiltration membranes were investigated.The morphology of the membranes was observed using a scanning electron microscope(SEM).The hydrophilicity and mechanical properties of the membranes were observed using a contact angle measurement instrument and an electronic tensile testing machine,respectively.The pure water flux and rejection rate were measured using a self-made measuring device.The experimental results showed that the membrane exhibited optimal performance when the FeCl2·4H2O content was 5%.The pure water flux of the membrane was 210 L/(m2·h).
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