Photocatalytic Degradation of Rhodamine B Dye by Bi2MoO6 Microspheres under Natural Sunlight Irradation
DOI:
https://doi.org/10.48165/bpas.2023.42C.1.1%20Keywords:
Bi2MoO6, Solar Photocatalyst, Rhodamine B, PhotocatalysisAbstract
Removal of dyes from water bodies is a significant concern throughout the world. In this study, Bi2MoO6 microspheres were synthesized by a hydrothermal synthetic route at 180°C, and it is effectively characterized by various techniques. The XRD peaks confirmed the orthorhombic planes of Bi2MoO6. The microsphere-like morphology was revealed by FESEM and HRTEM. The optical band gap was investigated by UV-vis DRS and showed a reflection edge with corresponding energy at 2.68 eV. The photocatalytic activity of the Bi2MoO6 microsphere is tested against the degradation of rhodamine B under natural sunlight irradiation. About 90% degradation of rhodamine B is observed in 90 min with the photocatalytic degradation rate of 0.038min-1. Results confirmed that the Bi2MoO6microspherecould facilitate 90% degradation of RhB dye and followed the first-order kinetic model.
Downloads
References
. Akbari, M. Z., Xu, Y., Lu, Z., & Peng, L. (2021). Review of antibiotics treatment by advance oxidation processes. Environmental Advances, 5, 100111. https://doi.org/10.1016/j.envadv.2021.1001
Calvete, M. J. F., Piccirillo, G., Vinagreiro, C. S., & Pereira, M. M. (2019). Hybrid materials for heterogeneous photocatalytic
degradation of antibiotics. Coordination Chemistry Reviews, 395, 63–85. https://doi.org/10.1016/j.ccr.2019.05.004
Dinh, Q. T., Moreau-Guigon, E., Labadie, P., Alliot, F., Teil, M. J., Blanchard, M., & Chevreuil, M. (2017). Occurrence of antibiotics in rural catchments. Chemosphere, 168, 483–490. https://doi.org/10.1016/j.chemosphere.201
10.106
Durán-Álvarez, J. C., Avella, E., Ramírez Zamora, R. M., & Zanella, R. (2016). Photocatalytic degradation of ciprofloxacin using mono- (Au, Ag and Cu) and bi- (Au Ag and Au-Cu) metallic nanoparticles supported on TiO2 under UV-C and simulated sunlight. Catalysis Today, 266, 175– 187.
https://doi.org/10.1016/j.cattod.2015.07.03 3
Homem, V., & Santos, L. (2011). Degradation and removal methods of antibiotics from aqueous matrices - A review. Journal of Environmental Management, 92(10), 2304–2347.
https://doi.org/10.1016/j.jenvman.2011.05. 023
Kortüm, G. (1969). Reflectance Spectroscopy, translated by JE Lohr. Springer Verlag, New York.
Li, C., Yu, S., Dong, H., Liu, C., Wu, H., Che, H., & Chen, G. (2018). Z-scheme mesoporous photocatalyst constructed by modification of Sn3O4 nanoclusters on g
C3N4 nanosheets with improved photocatalytic performance and mechanism insight. Applied Catalysis B: Environmental, 238(July), 284–293. https://doi.org/10.1016/j.apcatb.2018.07.04
Michael, I., Rizzo, L., McArdell, C. S., Manaia, C. M., Merlin, C., Schwartz, T., Dagot, C., & Fatta-Kassinos, D. (2013). Urban wastewater treatment plants as hotspots for the release of antibiotics in the environment: A review. Water Research, 47(3), 957–995.
https://doi.org/10.1016/j.watres.2012.11.02 7
Qin, K., Zhao, Q., Yu, H., Xia, X., Li, J., He, S., Wei, L., & An, T. (2021). A review of bismuth-based photocatalysts for antibiotic degradation: Insight into the photocatalytic degradation performance, pathways and relevant mechanisms. Environmental Research, 199(March), 111360. https://doi.org/10.1016/j.envres.2021.11136 0
Rivera-Utrilla, J., Sánchez-Polo, M., Ferro García, M. Á., Prados-Joya, G., & Ocampo Pérez, R. (2013). Pharmaceuticals as emerging contaminants and their removal from water. A review. Chemosphere, 93(7), 1268–1287.
https://doi.org/10.1016/j.chemosphere.201 3.07.059
Tauc, J., Grigorovici, R., & Vancu, A. (1966). Optical Properties and Electronic Structure of Amorphous Germanium. Physica Status Solidi (B), 15(2), 627–637. https://doi.org/https://doi.org/10.1002/p
ssb.19660150224