ZrxSi1−xO2/void/TiO2 embed PVDF composite photocatalytic films (Zr-SVTP films) are prepared.
ZrxSi1−xO2 shell can prevent TiO2 photocatalysits from damaging polymeric support.
Good aqueous channels in ZrxSi1−xO2 shell ensure the high photocatalytic activity.
Zr-SVTP films with higher photocatalytic activity are desirable for cleaning wastewater.