화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.23, No.1, 95-103, March, 2017
DOI10.7464/ksct.2017.23.1.095  Export Citation
메탄올 광분해 수소제조를 위한 ATiO3 (A = Ca, Sr, Ba) Perovskite 광촉매의 Ni 첨가 영향
Effect of Ni Addition on ATiO3 (A = Ca, Sr, Ba) Perovskite Photocatalyst for Hydrogen Production from Methanol Photolysis
곽병섭, 박노국1, 이태진1, 이상태2, 강미숙†
  • 영남대학교 화학과, 38541 경북 경산시 대학로 280
  • 1영남대학교 화학공학부, 38541 경북 경산시 대학로 280
  • 2(주)우신산업, 38470 경북 경산시 진량읍 공단6로 69
Byeong Sub Kwak, No‐Kuk Park1, Tae Jin Lee1, Sang Tae Lee2, and Misook Kang†
  • Department of Chemistry, College of Science, Yeungnam University, 280 Daehak-ro, Gyeongsan-si, Gyeongbuk 38541, Republic of Korea
  • 1School of Chemical Engineering, College of Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan-si, Gyeongbuk 38541, Republic of Korea
  • 2Wooshin Industrial Co. LTD., Gongdan 6-ro, Jillyang-eup Gyeongsan-si, Gyeongbuk 38470, Republic of Korea
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초록
본 연구는 비 TiO2 계 광촉매 중 가장 널리 알려져 있는 ATiO3 (A = Ca, Sr, Ba) perovskite를 sol-gel 법을 이용해 합성하였고, 골격치환이 용이한 점을 이용해 A site에 Ni을 첨가한 입자를 합성하였다. 합성한 ATiO3와 Ni-ATiO3 입자의 불리화학적 특성은 X-선 회절분석(XRD), 자외선-가시선 분광광도계(UV-visible spectroscopy), 주사전자현미경 (SEM), 에너지분산형 분광분석법(EDS), 질소 등온 흡.탈착실험, X선 광전자분광법(XPS)을 이용해 확인하였다. 수소제조는 메탄올을 광분해하여 얻었으며, ATiO3 보다 Ni-ATiO3 촉매에서 높은 수소발생량을 나타내었다. 특히 Ni-SrTiO3 촉매를 사용하였을 때 24시간 반응 후 273.84 mmol g-1 의 수소가 발생하였다. 또한 Ni-SrTiO3 촉매는 물(0.1 M KOH)을 분해하였을 때에도 높은 수소 제조성능을 나타냈으며, 24시간 반응 후 961.51 mmol g-1의 수소가 발생한 것을 확인하였다.
In this study, ATiO3 (A = Ca, Sr, Ba) perovskite, which is the widely known for non TiO2 photocatalysts, were synthesized using sol-gel method. And Ni was added at the A site of ATiO3 by using that it is easy to incorporate. The physicochemical characteristics of the obtained ATiO3 and Ni-ATiO3 particles were confirmed using the X-ray diffraction (XRD) UV-visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), the N2 adsorptiondesorption isotherm measurement, and X-ray photoelectron spectroscopy (XPS). The H2 was produced using the photolysis of MeOH. Using the Ni-ATiO3 photocatalysts, H2 production was higher than using the ATiO3 photocatalysts. Especially, 273.84 mmol g-1 H2 was produced after 24 h reaction over the Ni-SrTiO3. Also in the water (0.1 M KOH) with the Ni-SrTiO3, H2 production was 961.51 mmol g-1 after 24 h reaction.
Keywords:N-ATiO3;Photocatalyst;Perovskite;Hydrogen production;Photolysis
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