Kinetic study on degradation of tylosin in aqueous media using potassium peroxydisulfate in the presence of immobilized nanosilver

S. Kamali MoghaddamDepartment of Chemistry, University of Zanjan, Zanjan, Iran, Tel. +98 24 33052591; Fax: +98 24 33052477, Tel. +98 24 33052631; Fax: +98 24 33052477, Tel. +98 91 23415643; Fax: +98 24 33052477Correspondence[email protected]

M.H. RasoulifardDepartment of Chemistry, University of Zanjan, Zanjan, Iran, Tel. +98 24 33052591; Fax: +98 24 33052477, Tel. +98 24 33052631; Fax: +98 24 33052477, Tel. +98 91 23415643; Fax: +98 24 33052477Correspondence[email protected]

M. VahedpourDepartment of Chemistry, University of Zanjan, Zanjan, Iran, Tel. +98 24 33052591; Fax: +98 24 33052477, Tel. +98 24 33052631; Fax: +98 24 33052477, Tel. +98 91 23415643; Fax: +98 24 33052477Correspondence[email protected]

M.R. EskandarianDepartment of Chemistry, University of Zanjan, Zanjan, Iran, Tel. +98 24 33052591; Fax: +98 24 33052477, Tel. +98 24 33052631; Fax: +98 24 33052477, Tel. +98 91 23415643; Fax: +98 24 33052477Correspondence[email protected]

Abstract

In the present research, the degradation of tylosin (TYL) by nano Ag/ process under various reaction conditions was investigated. The experiments were performed in a batch reactor, using nanosilver as a catalyst. Effects of pH, persulfate concentration, temperature, and catalytic nano Ag on the degradation efficiency of TYL by persulfate are examined. For treatment of solutions containing 50 mg/L of TYL, the optimum obtained conditions were: 0.4 g/L of nano Ag, 100 mM of the KPS, initial pH of 6.0, and temperature of 40°C. The degradation of TYL by nano Ag/ oxidation process has been found to follow the pseudo-first-order kinetic model. Finally rate equation for TYL degradation using Langmuir–Hinshelwood kinetic model is:

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Kinetic study on degradation of tylosin in aqueous media using potassium peroxydisulfate in the presence of immobilized nanosilver

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Kinetic study on degradation of tylosin in aqueous media using potassium peroxydisulfate in the presence of immobilized nanosilver

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