Figure 4

PVDF-g-PAA membrane after 30 min immersion in 500 \(\upmu \)g L\(^{-1}\) Zn(II) spiked deionized water solution. (a) XPS survey spectrum; (b) region of Zn2p\(_{3/2}\) peak at 1022.14 eV.
PVDF-g-PAA membrane after 30 min immersion in 500 \(\upmu \)g L\(^{-1}\) Zn(II) spiked deionized water solution. (a) XPS survey spectrum; (b) region of Zn2p\(_{3/2}\) peak at 1022.14 eV.