Journal
CHEMICAL PHYSICS IMPACT
Volume 4, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.chphi.2022.100079
Keywords
Heterostructure; Microwave-assisted hydrothermal; Nb2O5/TiO2; Photocatalysis
Categories
Funding
- CAPES
- CNPq
- FAPERGS [17/2551-0000889-8, 19/2551-0001974-2]
- FAPESP [2013/07296-2]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES) [001]
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In this study, Nb2O5/TiO2 heterostructure was successfully prepared using the microwave-assisted hydrothermal method and its superior performance was confirmed through photocatalytic degradation test. The results showed that Nb2O5/TiO2 exhibited improved photocatalytic performance compared to Nb2O5, achieving 100% discoloration of rhodamine B. Furthermore, the sample demonstrated good chemical stability even after multiple reuse cycles.
Nb2O5/TiO2 heterostructure was prepared using the microwave-assisted hydrothermal method and characterized by different techniques. The sample was submitted to a photocatalytic degradation test using the discoloration of rhodamine B under UV-C irradiation for 90 min as a marker. Nb2O5/TiO2 showed an improvement in the photocatalytic benchmark compared to Nb2O5, to which it was possible to discolor 100% rhodamine B by essentially a 10% superior output. The samples showed good chemical stability after four different reuse cycles. In addition, the positive charges h(+) were distinguished as the active species that most influenced the photocatalytic performance of the material.
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