کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8855573 | 1619097 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative study of discoloration of mono-azo dye by catalytic oxidation based on wells-dawson heteropolyanion catalyst
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The objective of this research was to study and compare the kinetic discoloration of mono azo dye Methyl Orange (MO) in aqueous solution by (H2O2) and (KMnO4) using a Wells-Dawson heteropolyanion (α2P2W17O61Cu)8â. The factors on the discoloration of methyl orange, such as initial pH of the aqueous solution, mass of the catalyst, concentration of the oxidants, initial dye concentration were investigated. The results reveal that the use of (α2P2W17Cu /H2O2) and (α2P2W17Cu /KMnO4) systems has a great activity in the discoloration of MO which can respectively reached 90,6 % and 9851%. However, the kinetic discoloration of MO by (α2P2W17Cu /KMnO4) system is more quickly than that of the system (α2P2W17Cu /H2O2); where the reaction time is respectively 60â¯min and 240â¯min. The kinetic parameters for both systems were also determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Nanotechnology, Monitoring & Management - Volume 10, December 2018, Pages 10-16
Journal: Environmental Nanotechnology, Monitoring & Management - Volume 10, December 2018, Pages 10-16
نویسندگان
Nacéra Zabat,