Immobilization of highly active titanium dioxide and zinc oxide hollow spheres on ceramic paper and their applicability for photocatalytic water treatment

• TiO 2 and ZnO hollow spheres were successfully immobilized on ceramic paper. Immobilized catalysts proved to be remarkably stable reusable. Photoactivity order was reversed for in fixed suspended forms. induced the crystallization of adhesive. Titanium dioxide zinc oxide synthesized using carbon as templates. To investigate their practical applicability, they paper support titanium(IV) isopropoxide an The immobilization process successful, reinforced by X-ray diffraction, scanning electron microscopy infrared spectroscopy measurements. photocatalytic activity samples investigated applying them both These measurements performed under UV-A irradiation phenol a pollutant. reusability stability, experiments carried out consecutively three times. After immobilization, observed reversed. formation heterojunction deduced responsible activity. demonstrated highly reusable largely retained during repeated measurements, no catalyst leaching observed.