Journal
OPTICAL MATERIALS
Volume 113, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2021.110854
Keywords
g; ZnO; Solar light; Photodegradation; Acid Black 1; Luminescence; Semiconductor
Categories
Funding
- King Saud University, Riyadh, Saudi Arabia [RSP-2020/78]
- Yonsei Frontier Program for Young Postdoctoral Researchers 2020, Yonsei University, Seoul, South Korea
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A highly solar active gelatin assisted ZnO (g/ZnO) was successfully synthesized and utilized for toxic AB 1 azo dye degradation under direct sunlight. The g/ZnO exhibited higher degradation efficiency for AB 1 dye under solar light compared to ZnO, and it was found to be stable and reusable.
A highly solar active gelatin assisted ZnO (g/ZnO) was successfully synthesized by a sol-gel method. The photocatalyst was characterized by FE-SEM, HR-TEM, XRD, DRS, PL, FT-IR and Raman spectra. The prepared ZnO and g/ZnO were effectively utilized for toxic AB 1 azo dye degradation under direct sunlight. About 100% of degradation occurred with g/ZnO in a shorter time compared with prepared ZnO. The higher efficiency of g/ZnO in azo dye degradation under solar light may be due to higher visible light absorbance of g/ZnO compared with the prepared ZnO. A suitable degradation mechanism was proposed for AB 1 degradation under sunlight by g/ ZnO. The g/ZnO was found to be sable and reusable. The addition of scavengers contributes a significant decrease in the photodegradation efficiency of the catalyst.
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