Sonochemical Synthesis, Characterization, and Photocatalytic Performance Evaluation of Au/ZnO Nanocomposite for Methyl Orange Degradation-Reference-Cited by-同舟云学术

Sonochemical Synthesis, Characterization, and Photocatalytic Performance Evaluation of Au/ZnO Nanocomposite for Methyl Orange Degradation

Published:2023-11-01 Issue:6 Volume:1 Page:175-184
ISSN:2786-7447
Container-title:European Journal of Theoretical and Applied Sciences
language:
Short-container-title:ejtas

Author:

Chowdhury Md. Iqbal Hossain^ORCID,Fatema Kaniz^ORCID,Afrin Khodeja^ORCID,Afrose Fariha^ORCID,Hossain Md. Shahadat^ORCID,Azad Md. Abdus Samad^ORCID

Abstract

This study examines the impact of gold (Au) incorporation on zinc oxide (ZnO) nanoparticles. Both pure ZnO and Au/ZnO nanocomposite have been synthesized using a unique and environmentally friendly sonochemical approach. The as-synthesized Au/ZnO nanocomposite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet-visible (UV-vis) spectroscopic techniques. Under UV-visible irradiation, the photocatalytic effectiveness of ZnO nanoparticles and Au/ZnO nanocomposites for the degradation of dye was examined. The results demonstrated that the nanocomposite has greater photocatalytic activity than ZnO nanoparticles. This is due to the effective electron transfer from ZnO to Au prolonging the lifetime of photogenerated holes, which play the most important role in the dye degradation process.

Publisher

AMO Publisher

Reference43 articles.

1. Anis, S. F., Hashaikeh, R., & Hilal, N. (2019). Microfiltration membrane processes: A review of research trends over the past decade. Journal of Water Process Engineering, 32, 100941. https://doi.org/10.1016/J.JWPE.2019.100941 Bhangu, S. K., & Ashokkumar, M. (2016). Theory of Sonochemistry. Topics in Current Chemistry 2016 374:4, 374(4), 1–28. https://doi.org/10.1007/S41061-016-0054-Y

2. Bora, T., Kyaw, H. H., Sarkar, S., Pal, S. K., & Dutta, J. (2011). Highly efficient ZnO/Au Schottky barrier dye-sensitized solar cells: Role of gold nanoparticles on the charge-transfer process. Beilstein Jornal of Nanotechnology, 2, 681–690. https://doi.org/10.3762/bjnano.2.73

3. Chen, T. T., Chang, I. C., Yang, M. H., Chiu, H. T., & Lee, C. Y. (2013). The exceptional photo-catalytic activity of ZnO/RGO composite via metal and oxygen vacancies. Applied Catalysis B: Environmental, 142–143, 442–449. https://doi.org/10.1016/j.apcatb.2013.05.059

4. Dai, H., Ding, J., Chen, H., & Fu, H. (2023). Improvement of ethanolamine sensing performance based on Au-modified ZnO rod-like nanoflowers. Materials Letters, 340, 134183. https://doi.org/10.1016/j.matlet.2023.134183

5. Eskizeybek, V., Sari, F., Gülce, H., Gülce, A., & Avci, A. (2012). Preparation of the new polyaniline/ZnO nanocomposite and its photocatalytic activity for degradation of methylene blue and malachite green dyes under UV and natural sun lights irradiations. Applied Catalysis B: Environmental, 119–120, 197–206. https://doi.org/10.1016/j.apcatb.2012.02.034