Photodegradation of Bisphenol A using WO3/ZnO Photocatalyst under Visible Light Irradiation
DOI:
https://doi.org/10.24191/bioenv.v1i3.45Keywords:
Bisphenol A, Photocatalyst,, Tungsten trioxide, Visible light, Zinc oxideAbstract
The issues on the safety and dwindling of water quality due to the presence of exogenous endocrine-disrupting chemicals (EDCs) such as Bisphenol A (BPA) have become a major toxicological threat and growing concern. In a bid to curb the pollutants accumulation in water, semiconductor-mediated photocatalysis has been shown to be better suited for the removal of such organic pollutants because the technique offers a green and sustainable process by utilizing natural solar light as the energy source to mitigate the pollutants. ZnO has formerly been used as a photocatalyst, but this material has a wide band gap of 3.37 eV that can only be fully employed under ultraviolet irradiation and accounts for less than 5% of solar radiation. Therefore, the doping of low band gap material such as WO3 into ZnO lattice could provide ideal surface characteristics enhancement for BPA degradation. The coupling could maximize the redox potential in which the flow of electrons from the conduction band of WO3 to ZnO is expected. In this study, WO3/ZnO composite photocatalyst was synthesized at various mol ratios via simple chemical precipitation method. The degradation of BPA in aqueous solution under visible light irradiation (23 W) over 0.5 g of WO3/ZnO (1:3) composite photocatalyst was shown to achieve the best degradation percentage of 65.73% within 180 min.
References
Akhter, P., Nawaz, S., Shafiq, I., Nazir, A., Shafique, S., Jamil, F., Park, Y-K., & Hussain, M. (2023). Efficient visible light assisted photocatalysis using ZnO/TiO2 nanocomposites. Molecular Catalysis, 535, 112896.
Aris, A. Z., Hir, Z. A. M., & Razak, M. R. (2020). Metal-organic frameworks (MOFs) for the adsorptive removal of selected endocrine disrupting compounds (EDCs) from aqueous solution: A review. Applied Materials Today, 21, 100796.
Bedia, J., Muelas-Ramos, V., Peñas-Garzón, M., Gómez-Avilés, A., Rodríguez, J. J., & Belver, C. (2019). A review on the synthesis and characterization of metal organic frameworks for photocatalytic water purification. Catalysts, 9(1), 52.
Gao, L., Gan, W., Qiu, Z., Zhan, X., Qiang, T., & Li, J. (2017). Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities. Scientific reports, 7(1), 1102.
Kubacka, A., Caudillo-Flores, U., Barba-Nieto, I., & Fernández-García, M. (2021). Towards full-spectrum photocatalysis: Successful approaches and materials. Applied Catalysis A: General, 610, 117966.
Liu, Y., Kong, L., Guo, X., Xu, J., Shi, S., & Li, L. (2021). Surface oxygen vacancies on WO3 nanoplate arrays induced by Ar plasma treatment for efficient photoelectrochemical water oxidation. Journal of Physics and Chemistry of Solids, 149, 109823.
Low, J., Yu, J., Jaroniec, M., Wageh, S., & Al‐Ghamdi, A. A. (2017). Heterojunction photocatalysts. Advanced materials, 29(20), 1601694.
Madkhali, N., Prasad, C., Malkappa, K., Choi, H. Y., Govinda, V., Bahadur, I., & Abumousa, R. A. (2023). Recent update on photocatalytic degradation of pollutants in waste water using TiO2-based heterostructured materials. Results in Engineering, 100920.
Mano, G., Harinee, S., Sridhar, S., Ashok, M., & Viswanathan, A. (2020). Microwave assisted synthesis of ZnO-PbS heterojuction for degradation of organic pollutants under visible light. Scientific Reports, 10(1), 2224.
Modwi, A., Ghanem, M. A., Al-Mayouf, A. M., & Houas, A. (2018). Lowering energy band gap and enhancing photocatalytic properties of Cu/ZnO composite decorated by transition metals. Journal of Molecular Structure, 1173, 1-6.
Mohd Hir, Z. A., & Ali, R. (2021). Photodegradation of benzene, toluene, p-xylene in aqueous phase using ZnO, TiO2, SnO2, WO3 and Fe2O3 photocatalysts prepared via sol-gel method. Gading Journal of Science and Technology, 4(1), 25-32.
Mousa, H. M., Alenezi, J. F., Mohamed, I. M., Yasin, A. S., Hashem, A. F. M., & Abdal-Hay, A. (2021). Synthesis of TiO2@ZnO heterojunction for dye photodegradation and wastewater treatment. Journal of Alloys and Compounds, 886, 161169.
Noureen, L., Wang, Q., Humayun, M., Shah, W. A., Xu, Q., & Wang, X. (2022). Recent advances in structural engineering of photocatalysts for environmental remediation. Environmental Research, 115084.
Razali, N. A. M., Salleh, W. N. W., Aziz, F., Jye, L. W., Yusof, N., & Ismail, A. F. (2021). Review on tungsten trioxide as a photocatalysts for degradation of recalcitrant pollutants. Journal of Cleaner Production, 309, 127438.
Reddy, P. V. L., Kim, K. H., Kavitha, B., Kumar, V., Raza, N., & Kalagara, S. (2018). Photocatalytic degradation of bisphenol A in aqueous media: A review. Journal of environmental management, 213, 189-205.
Ruan, S., Huang, W., Zhao, M., Song, H., & Gao, Z. (2020). A Z-scheme mechanism of the novel ZnO/CuO nn heterojunction for photocatalytic degradation of Acid Orange 7. Materials Science in Semiconductor Processing, 107, 104835.
Samuel, O., Othman, M. H. D., Kamaludin, R., Sinsamphanh, O., Abdullah, H., Puteh, M. H., & Kurniawan, T. A. (2022). WO3–based photocatalysts: A review on synthesis, performance enhancement and photocatalytic memory for environmental applications. Ceramics International, 48(5), 5845-5875.
Shandilya, P., Sambyal, S., Sharma, R., Mandyal, P., & Fang, B. (2022). Properties, optimized morphologies, and advanced strategies for photocatalytic applications of WO3 based photocatalysts. Journal of Hazardous Materials, 428, 128218.
Shohany, B. G., & Zak, A. K. (2020). Doped ZnO nanostructures with selected elements-Structural, morphology and optical properties: A review. Ceramics International, 46(5), 5507-5520.
Wang, H., Li, X., Zhao, X., Li, C., Song, X., Zhang, P., & Huo, P. (2022). A review on heterogeneous photocatalysis for environmental remediation: From semiconductors to modification strategies. Chinese Journal of Catalysis, 43(2), 178-214.
Zhu, W., Sun, F., Goei, R., & Zhou, Y. (2017). Construction of WO3–g-C3N4 composites as efficient photocatalysts for pharmaceutical degradation under visible light. Catalysis Science & Technology, 7(12), 2591-2600.
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Copyright (c) 2023 Hamizah Mokhtar, Zul Adlan Mohd Hir, Hartini Ahmad Rafaie, Nik Fatin Nabihah Atiqah Nik Ramli
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