Table 2.

Composition of casting solutions for the membrane samples

Membrane	PSF (%)	NMP (%)	GO/TiO2(x)(%)	Porosity (%)	PWF (kg/m2h)a	ζ (mV)b
M0	12	88	0	39	7.3	−11.6
MA-0.25	11.75	88	x = 10 (0.25)	53	211.7	−12.8
MA-0.5	11.5	88	x = 10 (0.5)	62	278.1	−15.3
MA-1	11	88	x = 10 (1)	63	301.0	−19.0
MB-0.25	11.75	88	x = 30 (0.25)	49	237.3	−13.0
MB-0.5	11.5	88	x = 30 (0.5)	61	285.0	−15.8
MB-1	11	88	x = 30 (1)	64	310.5	−20.4
MC-0.25	11.75	88	x = 50 (0.25)	56	261.9	−16.5
MC-0.5	11.5	88	x = 50 (0.5)	63	290.3	−19.4
MC-1	11	88	x = 50 (1)	67	326.6	−24.7

^aTMP = 1 bar

^bpH = 7