File Name : fig s1.tif

Caption : fig. s1 water flux of the go membrane and the nacl-controlled go membrane.

File Name : fig s2.tif

Caption : fig. s2 uv absorption spectra of go suspension (25 mg/l) 1:1 mixed with 0.025 mol/l salt solution (nabr and nai) diluted with 100 times.

File Name : fig s3.tif

Caption : fig. s3 (a) the full-scan xps of go membranes. (b) c1s xps spectra of go membranes; (c) the full-scan xps of ah-rgo membranes. (d) c1s xps spectra of ah-rgo membranes.

File Name : fig s4.tif

Caption : fig. s4 xrd pattern for the go membrane.