Synthesis of High Efficient CS/PVDC/TiO2-Au Nanocomposites for Photocatalytic Degradation of Carcinogenic Ethidium Bromide in Sunlight
El-Ella Hussein Gad, A., Youssef, A., Ghannam, H., Zedan, A., Aboulthana, W., Al-Sherbini, A. (2020). Synthesis of High Efficient CS/PVDC/TiO2-Au Nanocomposites for Photocatalytic Degradation of Carcinogenic Ethidium Bromide in Sunlight. EKB Journal Management System, 63(5), 1619-1638. doi: 10.21608/ejchem.2020.21987.2313
Amr Abo El-Ella Hussein Gad; Ahmed Youssef; Hala El-Shahat Ghannam; Abdallah F. Zedan; Wael Mahmoud Aboulthana; Al-Sayed Al-Sherbini. "Synthesis of High Efficient CS/PVDC/TiO2-Au Nanocomposites for Photocatalytic Degradation of Carcinogenic Ethidium Bromide in Sunlight". EKB Journal Management System, 63, 5, 2020, 1619-1638. doi: 10.21608/ejchem.2020.21987.2313
El-Ella Hussein Gad, A., Youssef, A., Ghannam, H., Zedan, A., Aboulthana, W., Al-Sherbini, A. (2020). 'Synthesis of High Efficient CS/PVDC/TiO2-Au Nanocomposites for Photocatalytic Degradation of Carcinogenic Ethidium Bromide in Sunlight', EKB Journal Management System, 63(5), pp. 1619-1638. doi: 10.21608/ejchem.2020.21987.2313
El-Ella Hussein Gad, A., Youssef, A., Ghannam, H., Zedan, A., Aboulthana, W., Al-Sherbini, A. Synthesis of High Efficient CS/PVDC/TiO2-Au Nanocomposites for Photocatalytic Degradation of Carcinogenic Ethidium Bromide in Sunlight. EKB Journal Management System, 2020; 63(5): 1619-1638. doi: 10.21608/ejchem.2020.21987.2313

Synthesis of High Efficient CS/PVDC/TiO2-Au Nanocomposites for Photocatalytic Degradation of Carcinogenic Ethidium Bromide in Sunlight

Egyptian Journal of Chemistry
Article 3, Volume 63, Issue 5, May 2020, Page 1619-1638  XML PDF (2.25 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2020.21987.2313
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Authors
Amr Abo El-Ella Hussein Gad1; Ahmed Youssef email 2; Hala El-Shahat Ghannamorcid 3; Abdallah F. Zedanorcid 4; Wael Mahmoud Aboulthanaorcid 5; Al-Sayed Al-Sherbiniorcid 6
1Ph.D Candidate , Department of Measurements, Photochemistry and Agriculture Applications, National Institute of Laser Enhanced Science (NILES), Cairo University, Giza, Egypt
2National Research Centre, 30 El-Tahrir Street
3National Institute of Oceanography and Fisheries
4Department of Laser Applications in Metrology, Photochemistry and Agric., National Institute of Laser Enhanced Science, Cairo University, Giza, Egypt
533 Bohouth St., P.O. 12622, Dokki, Giza, Egypt
6Prof. of Photochemistry and Nano chemistry, Department of Measurements, Photochemistry and Agriculture Applications, National Institute of Laser Enhanced Science (NILES), Cairo University, Giza, Egypt.
Abstract
Ethidium bromide (EtBr) is one of the most broadly used dyes in molecular biology laboratories. It was considered a strong mutagenic, carcinogenic and possesses a major safety problem for the researchers and environmental hazards during the disposal process. In the current study chitosan (CS) and polyvinylidene chloride (PVDC) based on different morphologies of TiO2-Au nanocomposites were prepared, namely as CS/PVDC/TiO2-Au nanocomposites. Firstly, the titanium dioxide nanowires (TiO2-NWs, gold nanoparticles (Au-NPs) and TiO2-NWs doped by Au-NPs (TiO2-Au) were successfully fabricated and well-evaluated using X-ray diffractometer (XRD) and transmission electron microscope (TEM). Furthermore, chitosan was prepared from crabs shell wastes and blended with PVDC then different loadings of TiO2-Au nanocomposites were incorporated onto the nanocomposites films. The prepared CS/PVDC/TiO2-Au nanocomposites films were characterized using UV-Visible spectra, Fourier transforms infrared (FT-IR), XRD and TEM. Moreover, the CS/PVDC/TiO2-Au nanocomposites were used for photodecomposition of EtBr under sunlight irradiation from~ 400-600 W/m2 with and without aeration as well as assaying integrity of the EtBr after decomposition by horizontal gel electrophoresis. The results established that the CS/PVDC/TiO2-Au nanocomposites were sufficient to remove ~70-90 % of the EtBr through the irradiated time course and ~ 60 % of the dye was degraded in the first one hour.
Keywords
Chitosan; TiO2-NWs; Au-NPs; Thin-film; Ethidium Bromide; Nanocomposites; Gel Electrophoresis
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