Enhancement in photocatalytic degradation of methylene blue by LaFeO3-GO integrated photocatalyst-adsorbents under visible light irradiation

Perovskite LaFeO 3 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 w...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2018, 35(2), 215, pp.548-556
Main Authors: Mutalib, Muhazri Abd, Aziz, Farhana, Jamaludin, Nur Aisyah, Yahya, Norsyazwani, Ismail, Ahmad Fauzi, Mohamed, Mohamad Azuwa, Yusop, Mohd Zamri Mohd, Salleh, Wan Norharyati Wan, Jaafar, Juhana, Yusof, Norhaniza
Format: Article
Language:English
Subjects:
Adsorbents
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Electronic
Ferrites
Fourier transforms
Graphene
Industrial Chemistry/Chemical Engineering
Infrared spectroscopy
Inorganic
Lanthanum compounds
Light irradiation
Magnetic properties
Materials (Organic
Materials Science
Methylene blue
Photocatalysis
Photocatalysts
Photodegradation
Sheets
Sol-gel processes
Strong interactions (field theory)
Thin Films
화학공학
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Summary:Perovskite LaFeO 3 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 LaFeO 3 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 LaFeO 3 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.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-017-0281-0