화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.35, No.2, 548-556, February, 2018
DOI10.1007/s11814-017-0281-0  Export Citation
Enhancement in photocatalytic degradation of methylene blue by LaFeO3-GO integrated photocatalyst-adsorbents under visible light irradiation
Muhazri Abd Mutalib1, Farhana Aziz2, 3, †, Nur Aisyah Jamaludin2, 3, Norsyazwani Yahya2, 3, Ahmad Fauzi Ismail2, 3, Mohamad Azuwa Mohamed4, Mohd Zamri Mohd Yusop2, 5, Wan Norharyati Wan Salleh2, 3, Juhana Jaafar2, 3, and Norhaniza Yusof2, 3
  • 1Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
  • 2Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • 3Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • 4Fuel Cell Institute (SELFUEL), Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
  • 5Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
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Perovskite LaFeO3 photocatalyst prepared by using sol-gel glucose method was assembled on graphene oxide sheets to produce integrated photocatalyst-adsorbents (IPCA) and investigated as photocatalyst for the degradation of methylene blue under visible light irradiation. The prepared photocatalyst was characterized by FTIR, XRD, FESEM, BET specific surface area measurement, TEM/HRTEM and UV-Vis spectroscopy analysis. The FTIR, FESEM and TEM analysis has suggested that the photocatalyst LaFeO3 has been successfully embedded at the surface of the graphene oxide (GO) sheets due to a strong interaction between the photocatalyst and the adsorbents matrix. Methylene blue degradation shows that IPCA possesses higher photodegradation kinetics compared to bare LaFeO3 photocatalyst. The resultant photocatalyst also possesses magnetic properties which can overcome the difficulty in recollecting and removal of photocatalyst suspension in water after photocatalytic treatment.
Keywords:Integrated Photocatalyst-adsorbents (IPCA);Perovskite LaFeO3 Photocatalyst;Photodegradation;Magnetic;Graphene Oxide
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