PREPARATION OF METAL OXIDE PHOTOCATALYST BY SOFT SOLUTION PROCESS WITH ANION EXCHANGE RESIN

摘要

Photocatalysts are expected for removing an environmental pollutant only with solar energy. Generally, the photocatalic powders are synthesized with high energy process such as the solid-phase synthesis or gas-phase process. On the other hand, there is a concept for making high performance material directly from solution, in soft and environmentally friendly condition, which is called soft solution process. In this study, zinc hydroxide and oxide were synthesized by ion exchange resin. By this method, we succeeded in harmless and energy saving process. Afterwards, the basic physical properties and photocatalic performance of the obtained sample were evaluated. The as-prepared photocatalyst was characterized by TG-DTA, XRD, FE-SEM, BET, and UV-vis and ZnO calcined at 573 K showed the highest photocatalic activity.