TY - JOUR ID - 33280 TI - Application of Photo-Fenton System (UV/ H2O2/ Fe2+) for Efficient Decolorization of Azo-Dye Acid Yellow 17 in Aqueous Solution JO - Iranian Journal of Chemistry and Chemical Engineering JA - IJCCE LA - en SN - 1021-9986 AU - Khan, Jehangeer AU - Tariq, Muhammad AU - Muhammad, Mamriz AU - Haris Mehmood, Muhammad AU - Ullah, Inam AU - Khan, Hizb Ullah AU - Raziq, Abdur AU - Akbar, Fazli AU - Saqib, Muhammad AU - Niaz, Abdul AD - National Centre of Excellence in Physical Chemistry, University of Peshawar- 25120. PAKISTAN AD - National Centre of Excellence in Physical Chemistry, University of Peshawar- 25120. Pakistan AD - Department of Chemistry, Hazara University, y Mansehra-21120. PAKISTAN, Y1 - 2020 PY - 2020 VL - 39 IS - 1 SP - 127 EP - 140 KW - azo dye KW - oxidative degradation KW - UV/H2O2/Fe2+ KW - optimum conditions KW - second-order kinetics DO - 10.30492/ijcce.2020.33280 N2 -  Herein we report, the robustness of UV/H2O2/Fe2+ system for efficient decolorization of azo-dye Acid Yellow (AY17) solution. It has been found that 88% AY17 decolorized by UV/H2O2/Fe2+ system in 25 minutes under the following optimized conditions; [dye] = 0.14 mM, [H2O2] =1.0 mM, [Fe2+ ] = 0.09 mM, stirring velocity =100 rpm, and pH = 3.0. The decolorization of AY17 by UV/H2O2/Fe2+ system exhibits second-order reaction kinetics. Thermodynamic parameters, activation enthalpy, rH*, (13.76 kJ/mol1), and entropy rS*, (0.034686 J/K) of the dye decolorization were also determined. It was ascertained that electrolytes such as HCO3−, CO32−, Cl−, and SO42− decrease the decolorization efficiency by scavenging the hydroxyl radical generation in the dye solution. Finally, the AY17 decolorization in the tape water sample by UV/H2O2/Fe2+ system was also examined. UR - https://ijcce.ac.ir/article_33280.html L1 - https://ijcce.ac.ir/article_33280_96b68192b29e76f8ab98791185950af2.pdf ER -