Application of Photo-Fenton System (UV/H2O2/Fe2+) for Efficient Decolorization of Azo-Dye Acid Yellow 17 in Aqueous Solution

被引：5

作者：

Khan, Jehangeer ^{[1
]}

Tariq, Muhammad ^{[1
]}

Muhammad, Mamriz ^{[1
]}

Mehmood, Haris Muhammad ^{[1
]}

Ullah, Inam ^{[1
]}

Khan, Ullah Hizb ^{[1
]}

Raziq, Abdur ^{[1
]}

Akbar, Fazli ^{[1
]}

Saqib, Muhammad ^{[1
]}

Niaz, Abdul ^{[2
]}

机构：

[1] Univ Peshawar, Natl Ctr Excellence Phys Chem, Peshawar 25120, Pakistan

[2] Hazara Univ Mansehra, Dept Chem, Mansehra 21120, Pakistan

来源：

IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION | 2020年 / 39卷 / 01期

关键词：

Azo dye; Oxidative degradation; UV/H2O2/Fe2+; Optimum conditions; Second-order kinetics; BLUE; 29; DYE; WASTE-WATER; OXIDATIVE-DEGRADATION; HYDROGEN-PEROXIDE; TEXTILE DYES; ORANGE-G; REMOVAL; NANOPARTICLES; WASTEWATERS; ADSORPTION;

D O I：

10.30492/IJCCE.2020.33280

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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, Delta H-*, (13.76 kJ/mol(1)), and entropy Delta S-*, (0.034686 J/K) of the dye decolorization were also determined. It was ascertained that electrolytes such as HCO3-, CO32-, Cl--,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.

引用

页码：127 / 140

页数：14

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