Porous poly(vinyl alcohol) (PVA) films (PPF) were prepared that PVA was used as matrix
glutaraldehyde was used as cross-linking agent
acetic acid was used as catalyst and polyethylene glycol 6000 (PEG-6000) was used as porogen
followed by loading titanium dioxide (TiO
2
) on it to obtain PPF loaded with TiO
2
(PPF-TiO
2
). Infrared spectrometry
scanning electron microscope and spectrophotometer were used to investigate the cross-linking conditions
microstructure shapes before and after loading TiO
2
and the degradability of PPF-TiO
2
to methyl orange. The results showed that PPF with appropriate cross-linked degree and pore sizes could be fabricated with 5% glutaraldehyde and PEG-6000 (0.6 times of the weight of PVA). The loading weight of PPF to TiO
2
reached 43% of the total weight when the loading temperature was 40℃ and loading time was controlled at 2h. Furthermore