본 연구에서는 보다 효율적인 광 전기화학적 수소제조를 위하여 광촉매로써 산화텅스텐에 티타늄을 함침하여 Ti/WO<SUB>3</SUB> 나노입자를 제조하였다. 제조한 Ti/WO<SUB>3</SUB>의 물리적 특성은 X-선 회절분석법(XRD), 주사전자현미경(SEM), 발광분광계(PL), 원자간력 현미경(AFM), 정전기 현미경(EFM)을 통해 확인하였다. 메탄올/물 (1/1) 광분해 수소제조 실험 결과, 순수 아나타제 티타니아나 산화텅스텐 광촉매보다 Ti/WO3 광촉매에서 촉매활성이 향상되었으며, 0.5 g의 0.10 mol % Ti/WO<SUB>3</SUB> 촉매를 사용한 경우 8시간 반응 시 3.02 mL의 수소가 발생되었다.
For effectively photochemical hydrogen production, Ti ions (0.01, 0.10, 0.50 mol%) impregnated WO<SUB>3</SUB> (Ti/WO<SUB>3</SUB>) nanometer sized particles were prepared using a impregnation method as a photocatalyst. The characteristics of the synthesized Ti/WO<SUB>3</SUB> photocatalysts were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence spectra (PL), atomic force microscope (AFM), and electrostatic force microscope (EFM). The evolution of H<SUB>2</SUB> from methanol/water (1/1) photo-splitting over Ti/WO<SUB>3</SUB> photocatalysts was enhanced compared to those over pure TiO<SUB>2</SUB> and WO<SUB>3</SUB> photocatalysts; 3.02 mL of H<SUB>2</SUB> gas was evolved after 8 h when 0.5 g of a 0.10 mol% Ti/WO<SUB>3</SUB> catalyst was used.