CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution
Degradation of trypan blue (TB) by persulfate/CuNPs system was investigated as a function of TB concentration, persulfate concentration, CuNPs concentration, pH, and reaction temperature in aqueous solution. The rate of the decolorization and destruction of aromatic ring were studied spectrophotomet...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-05-01
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| Series: | Journal of Saudi Chemical Society |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610322000254 |
| _version_ | 1817977319652851712 |
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| author | Abeer Hammad A. Aljadaani Zaheer Khan Shaeel Ahmad AL-Thabaiti |
| author_facet | Abeer Hammad A. Aljadaani Zaheer Khan Shaeel Ahmad AL-Thabaiti |
| author_sort | Abeer Hammad A. Aljadaani |
| collection | DOAJ |
| description | Degradation of trypan blue (TB) by persulfate/CuNPs system was investigated as a function of TB concentration, persulfate concentration, CuNPs concentration, pH, and reaction temperature in aqueous solution. The rate of the decolorization and destruction of aromatic ring were studied spectrophotometrically. The dye mineralization was performed with potassium dichromate for the determination of chemical oxygen demand (COD) in solution. The blue color reaction mixture became red-chocolate, purple, light blue to dark blue as a function of time. The CuNPs acted as an activator of K2S2O8 and generates various reactive oxygen and/or sulphur species. Decolorization of dye starts due to the cleavage of azo bond by the generated radical species. The role of sulfate radicals (SO4•-), and hydroxyl radicals (HO•) were established by using different radical scavengers. Degradation and mineralization of dye follows first-order kinetics. These results can support the design of remediation processes and also assist in predict their fate in environment. |
| first_indexed | 2024-04-13T22:14:40Z |
| format | Article |
| id | doaj.art-859cb6c7abd44c0ab15def4fa0fe1c50 |
| institution | Directory Open Access Journal |
| issn | 1319-6103 |
| language | English |
| last_indexed | 2024-04-13T22:14:40Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj.art-859cb6c7abd44c0ab15def4fa0fe1c502022-12-22T02:27:35ZengElsevierJournal of Saudi Chemical Society1319-61032022-05-01263101443CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solutionAbeer Hammad A. Aljadaani0Zaheer Khan1Shaeel Ahmad AL-Thabaiti2Department of Chemistry, Faculty of Science, P. O. Box 80203, King Abdulaziz University, Jeddah 21589, Saudi ArabiaCorresponding author.; Department of Chemistry, Faculty of Science, P. O. Box 80203, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Chemistry, Faculty of Science, P. O. Box 80203, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDegradation of trypan blue (TB) by persulfate/CuNPs system was investigated as a function of TB concentration, persulfate concentration, CuNPs concentration, pH, and reaction temperature in aqueous solution. The rate of the decolorization and destruction of aromatic ring were studied spectrophotometrically. The dye mineralization was performed with potassium dichromate for the determination of chemical oxygen demand (COD) in solution. The blue color reaction mixture became red-chocolate, purple, light blue to dark blue as a function of time. The CuNPs acted as an activator of K2S2O8 and generates various reactive oxygen and/or sulphur species. Decolorization of dye starts due to the cleavage of azo bond by the generated radical species. The role of sulfate radicals (SO4•-), and hydroxyl radicals (HO•) were established by using different radical scavengers. Degradation and mineralization of dye follows first-order kinetics. These results can support the design of remediation processes and also assist in predict their fate in environment.http://www.sciencedirect.com/science/article/pii/S1319610322000254CuNPsActivatorTrypan blueDegradation |
| spellingShingle | Abeer Hammad A. Aljadaani Zaheer Khan Shaeel Ahmad AL-Thabaiti CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution Journal of Saudi Chemical Society CuNPs Activator Trypan blue Degradation |
| title | CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution |
| title_full | CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution |
| title_fullStr | CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution |
| title_full_unstemmed | CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution |
| title_short | CuNPs as an activator of K2S2O8 for the decolorization of diazo dye in aqueous solution |
| title_sort | cunps as an activator of k2s2o8 for the decolorization of diazo dye in aqueous solution |
| topic | CuNPs Activator Trypan blue Degradation |
| url | http://www.sciencedirect.com/science/article/pii/S1319610322000254 |
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