A Comparative Study on Photodegradation Kinetic of Tetracycline Using Visible light Sensitized ZnS and Cu-loaded ZnS Nano Particles | ||
| شیمى کاربردى روز | ||
| Article 20, Volume 13, Issue 47, June 2018, Pages 249-262 PDF (1008.67 K) | ||
| Document Type: Original Article | ||
| DOI: 10.22075/chem.2018.2873 | ||
| Authors | ||
| malihe ahadi1; Parviz Aberoomand Azar* 2; Mohammad Saber Tehrani3; Syed Waqif Husain3 | ||
| 1Islamic Azad University, Science and Research Branch | ||
| 2Department of Chemistry, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| 3Department of Chemistry, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| Receive Date: 28 March 2017, Revise Date: 29 June 2017, Accept Date: 08 August 2017 | ||
| Abstract | ||
| Sensitized ZnS and Cu-loaded ZnS nanoparticles have been synthesized by chemical precipitation method using anthocyanin as the capping agent and sensitizer. X-ray diffraction, transmission electron microscopy, UV visible spectrophotometer methods were used for the characterization of nanoparticles. Photocatalytic activities of sensitized ZnS and Cu-loaded ZnS were compared in degradation of tetracycline in aqueous solution under visible light irradiation. The progress of the reaction was monitored spectrophotometrically. The different parameters affecting on the photocatalytic reaction such as amount of semiconductor, the initial tetracycline (TC) concentration, the pH of solution, Influence of Cu content and the photocatalytic degradation kinetics of TC were studied. Sensitized Cu-loaded ZnS nanoparticles exhibit high photocatalytic activity during the mineralization of tetracycline under visible light due to decrease of recombination rate of electron–hole pairs. More than 90 % of tetracycline solution degraded with sensitized Cu-loaded ZnS in less than 90 min while Sensitized ZnS was degrading 80 percent within 5 hours. | ||
| Keywords | ||
| " Visible light sensitized "; " Tetracycline"; " Photocatalyst"; "Nanoparticles"; " Zinc sulfide" | ||
| References | ||
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