화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.17, No.1, 78-82, March, 2011
Export Citation
P와 B 이온이 함유된 나노 티타니아 광촉매의 광 전기화학적 수소 제조 성능
Photo-Electrochemical Hydrogen Production Over P- and B- Incorporated TiO2 Nanometer Sized Photo-Catalysts
곽병섭, 최희찬1, 우재욱1, 이주승1, 안준범1, 류시경1, 강미숙†
  • 영남대학교 화학과, 712-749 경북 경산시 대동 214-1번지
  • 1경산과학고등학교, 712-260 경북 경산시 화랑로 66번지
Byeong Sub Kwak, Hee-chan Choi1, Jae-wook Woo1, Ju-seung Lee1, June-bum An1, Si Gyeong Ryu1, and Misook Kang†
  • Department of Chemistry, Yeungnam University, 214-1 Dae-dong, Gyeongsan, Gyeongbuk 712-749, Korea
  • 1Gyeomgsan Science High School, 66 Wharang-ro, Gyeongsan, Gyeongbuk, 712-260, Korea
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초록
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, 발광 분광계를 통해 확인하였다. 메탄올/물(1 :1) 광분해 수소제조 실험 결과，1.0mol%B-TiO2 광촉매가 순수 anatase TiO2 광촉매 보다 활성이 향상되었으며，0.5 g의 1.0 mol% B-TiO2 촉매를 사용한 경우 10시간 반응 시 0.42 mL의 수소가 발생되었다.
For effectively photochemical hydrogen production, P (negative semiconductor) and B (positive semiconductor) ions (0.1,0.2,0.5, and 1.0 mol%) incorporated Ti02 (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), W-visible spectroscopy (W-Vis), and Photoluminescence spectra (PL). The evolution of H2 from methanoVwater (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.
Keywords:Solvothermal method;P-TiO2;B-TiO2;H2 production
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