© 2018 Discovery Publication. All Rights Reserved. www.discoveryjournals.org OPEN ACCESS Page90 REPORT ARTICLE Photo-oxidative degradation of methyl orange in aqueous medium by Photo-Fenton reaction Abdussamad Ahmad Yusuf 1 , Fazal-ur-Rehman M 2☼ 1.Department of Pure and Industrial Chemistry, Bayero University Kano. PMB 3011, Kano, Nigeria 2.Department of Chemistry, University of Education, Lahore-Vehari Campus, Vehari (61100), Punjab, Pakistan ☼ Corresponding Author: M.Fazal-ur-Rehman, Research Scholar, Department of Chemistry, University of Education, Lahore-Vehari Campus, Vehari-61100, Punjab, Pakistan, ORCID: 0000-0003-0265-4465, Contact: + 923467088517, E-mail: fazalurrehman517@gmail.com Article History Received: 23 April 2018 Accepted: 10 June 2018 Published: June 2018 Citation Abdussamad Ahmad Yusuf, Fazal-ur-Rehman M. Photo-oxidative degradation of methyl orange in aqueous medium by Photo- Fenton reaction. Science & Technology, 2018, 4, 90-96 Publication License This work is licensed under a Creative Commons Attribution 4.0 International License. General Note Article is recommended to print as color digital version in recycled paper. ABSTRACT The present work evaluated the use of Photo-Fenton process for the oxidation (degradation) of Methyl Orange in an aqueous medium. The photo-Fenton best operating conditions, such as, irradiation time, dye concentration, H2O2/ Fe 2+ dosage and the reaction kinetics were investigated and evaluated. The efficiency of the treatment was measured by the use of absorbance method using UV-Visible spectrophotometer. The results showed that the optimum irradiation time for the photo-Fenton process was equal REPORT Vol. 4 , 2 0 1 8 Science & T echnology ISSN 2394–3750 EISSN 2394–3769