Photocatalytic degradation of methylene blue from an aqueous solution using SnO2/BaTiO3 heterostructure

Nga Viet Thi Nguyen, Hang Thanh Le Nguyen, Thanh Thi Ho, Lieu Thanh Thi Le, Lan Thi Nguyen, Thuat Ngoc Pham, Kim Van Nguyen

Abstract


In this study, the SnO2/BaTiO3 heterostructure has been fabricated by firstly preparing SnO2 and BaTiO3 through, followed by coupling SnO2 and BaTiO3 by the hydrothermally method. The samples are denoted as SBTO-x:y, where x:y is weight ratio of SnO2 và BaTiO3 (x:y = 1:3, 1:5 và 1:7) in the reaction mixtures. The obtained materials were characterized by XRD, IR, EDS-mapping, SEM. The photocatalytic activity of SBTO-x:y SnO2 and BaTiO3 samples was assessed by degradation of methylene blue in aqueous solution under sunlight. Among them, SBTO-1:5 exhibited the best performance. An enhancement in photocatalytic activity of the composites is believed to the presence of BaTiO3.

Keywords


SnO2/BaTiO3; photocatalyst; methylene blue; visible light

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References


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DOI: https://doi.org/10.51316/jca.2023.006

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