P와 B 이온이 함유된 나노 티타니아 광촉매의 광 전기화학적 수소 제조 성능

국문 초록 (Abstract)

본 연구에서는 보다 효율적인 광 전기화학적 수소제조를 위하여 광촉매로써 티타니아 골격에 positive-type 반도체로써 B 이온, negative-type 반도체로써 P 이온을 삽입하여 고온 고압에서 용매열(solvothermal)법으로 P- 그리고 B-TiO₂ 나노 입자를 제조하였다. 제조한 P-TiO₂와 B-TiO₂의 물리적 특성은 X-ray 회절분석법, 투과전자현미경, 자외선-가시선 분광광도계, 발광분광계를 통해 확인하였다. 메탄올/물 (1:1) 광분해 수소제조 실험 결과, 1.0 mol% B-TiO₂ 광촉매가 순수 anatase TiO₂ 광촉매보다 활성이 향상되었으며, 0.5 g의 1.0 mol% B-TiO₂ 촉매를 사용 한 경우 10시간 반응 시 0.42 mL의 수소가 발생되었다.

다국어 초록 (Multilingual Abstract)

For effectively photochemical hydrogen production, P (negative semiconductor) and B (positive semiconductor) ions (0.1, 0.2, 0.5, and 1.0 mol%) incorporated TiO₂ (P- and B-TiO₂) nanometer sized particles were prepared using a solvothermal method as a photocatalyst. The characteristics of the synthesized P- and B-TiO₂ photocatalysts were analyzed by X-ray Diffraction (XRD), Transmission electron microscopy (TEM), UV-visible spectroscopy (UV-Vis), and Photoluminescence spectra (PL). The evolution of H₂ from methanol/water (1:1) photo-splitting over B-TiO₂ photocatalysts was enhanced compared to those over pure TiO₂ and P-TiO₂ photocatalysts; 0.42 mL of H₂ gas was evolved after 10 h when 0.5 g of a 1.0 mol% B-TiO₂ catalyst was used.

목차 (Table of Contents)

• 요약
• Abstract
• 1. 서론
• 2. 실험
• 3. 결과 및 토론
• 4. 결론
• 참고문헌

참고문헌 (Reference)

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