Both the porosity ( Figure 4 b) and water uptake ( Figure 4 c) followed an increasing trend after the membrane modification.
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Porphyrin-Modified Polyethersulfone Ultrafiltration Membranes for Enhanced Bacterial Inactivation and Filtration Performance.
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The sentences
The fabricated membranes showed a trend that increases with an increase in the transmembrane pressure applied.
The turbidity of the permeate exhibited a decreasing trend from M0 to M3, suggesting an improvement in membrane selectivity upon modification.