Photocatalytic Oxidation of Benzyl Alcohol to Benzyl Aldehyde Using Synthesized Zinc Oxide and Zinc-Doped Titanium Oxide
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Abstract
Photocatalytic oxidation of alcohols to carbonyl compounds is important in various organic transformations because it plays a significant role in synthesizing fine chemicals, confectionaries, fragrances, and pharmaceuticals. This study compares the photocatalytic activity of synthesised zinc oxide and zinc-doped titanium oxide for the photocatalytic oxidation of aromatic alcohols to aldehydes. We prepared undoped and zincdoped titanium oxide (Zn-TiO2) by hydrothermal synthesis. We evaluated the photocatalytic performance of the synthesised photocatalyst for converting benzyl alcohol to benzaldehyde. We used powder X-ray diffraction to characterise the synthesised product. Gas Chromatography - Flame Ionization Detector was employed to assess the photocatalytic conversion activity of Benzyl alcohol (BA) via UV-Visible irradiation. The study achieved about 40% conversion of the alcohol and 80% product selectivity. This research also compares hydrothermally synthesized Zinc oxide and Zn-TiO2 as photocatalysts for the organic synthesis of aromatic hydrocarbons such as benzyl alcohol, where zinc-doped titanium oxide yields higher product selectivity than the undoped photocatalyst.
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Alibeigi, A. N., Javid, N., Amiri Gharaghani, M., Honarmandrad, Z., & Parsaie, F. (2021). Synthesis, characteristics, and photocatalytic activity of zinc oxide nanoparticles stabilized on the stone surface for degradation of metronidazole from aqueous solution. Environmental Health Engineering and Management Journal, 8(1), 55–63. DOI: 10.34172/EHEM.2021.08
Aziz, A. A., & Jassim, H. K. (2018). pH of the reaction mixture determines the types of ZnO nanoparticles formed. Journal of Nanomaterials, 1–7. DOI: 10.23851/MJS.V29I1.269
Bulcha, B., Leta Tesfaye, J., Anatol, D., Shanmugam, R., Dwarampudi, L. P., Nagaprasad, N., & Krishnaraj, R. (2021). Synthesis of zinc oxide nanoparticles by hydrothermal methods and spectroscopic investigation of ultraviolet radiation protective properties. Journal of Nanomaterials, 2021, 1–10. DOI: 10.1155/2021/8617290
Chan-Thaw, C. E., Savara, A., & Villa, A. (2018). Selective Benzyl Alcohol Oxidation over Pd Catalysts. Catalysts, 8(10), 431.
DOI: 10.3390/catal8100431
Chen, Y., Wu, Q., Liu, L., Wang, J., & Song, Y. (2019). The fabrication of self-floating Ti3+/N co-doped TiO2/diatomite granule catalyst with enhanced photocatalytic performance under visible light irradiation. DOI: 10.1007/s11426-018-9399-2
Ejsmont, A.A., and Goscianska, J.J. (2023). Hydrothermal Synthesis of ZnO Superstructures with Controlled Morphology via Temperature and pH Optimization. Materials, 16(4) DOI: 10.3390/ma16041641
Khan, S. A., Noreen, F., Kanwal, S., Iqbal, A., & Hussain, G. (2018). Green synthesis of ZnO and Cu-doped ZnO nanoparticles from leaf extracts of Abutilon indicum, Clerodendrum infortunatum, Clerodendrum inerme and investigation of their biological and photocatalytic activities. Materials Science and Engineering: C, 82, 46–59. https://www.sciencedirect.com/science/article/pii/S092849311731963X
Kumar, R., Al-Dossary, O., Kumar, G., & Umar, A. (2015). Zinc oxide nanostructures for NO 2 gas–sensor applications: A review. Nano-Micro Letters, 7, 97–120. DOI: 10.1007/s40820-014-0023-3. Works remain significant; see the declaration
Mohan, Sonima & Vellakkat, Mini & Aravind, Arun & .U, Reka. (2020). Hydrothermal synthesis and characterization of Zinc Oxide nanoparticles of various shapes under different reaction conditions. Nano Express. 1. 03-28. DOI: 10.1088/2632-959X/abc813
Moond, M., Singh, S., Sangwan, S., Devi, R., & Beniwal, R. (2022). Green synthesis and applications of silver nanoparticles: a systematic review. AATCC Journal of Research, 9(6), 272–285. DOI: 10.3390/catal8100431
Prakruthi, K., Ujwal, M. P., Yashas, S. R., Mahesh, B., Swamy, N. K. & Shivaraju, H. P. (2022). Recent advances in photocatalytic remediation of emerging organic pollutants using semiconducting metal oxides: an overview. Environmental Science and Pollution Research 29(4), pp. 4930–4957. DOI: 10.1007/s11356-021-17361-1
Quintana, M. A., Rodriguez-Padrón, D., Jiménez-Calvo, P., Calero, M., Solís, R. R., & Muñoz-Batista, M. J. (2025). Selective production of aldehydes: From traditional alternatives to alcohol photo-oxidation using g-C3N4-based materials. Materials Advances, 6(12), 3760-3784. DOI: 10.1039/d5ma00229j
Tang, D., Lu, G., Shen, Z., Hu, Y., Yao, L., Li, B., Zhao, G., Peng, B. & Huang, X. (2023). A review on photo-, electro-, and photo-electrocatalytic strategies for selective oxidation of alcohols. Journal of Energy Chemistry 77, pp. 80-118. DOI: 10.1016/j.jechem.2022.10.038
Yadav, G. D., Mewada, R. K., Wagh, D. P., & Manyar, H. G. (2022). Advances and future trends in selective oxidation catalysis: a critical review. Catalysis Science & Technology, 12(24), 7245-7269. DOI: 10.1039/d2cy01322c