Highly active copper in dye discoloration via a heterogeneous Fenton-like process
| العنوان: | Highly active copper in dye discoloration via a heterogeneous Fenton-like process |
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| المؤلفون: | Souad Djerad, Meriem Hamidani, Mohamed Boulkra, L. Tifouti |
| المصدر: | Journal of the Iranian Chemical Society. 17:1201-1209 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Sodium ascorbate, 010405 organic chemistry, Scanning electron microscope, Permanganate, chemistry.chemical_element, General Chemistry, 010402 general chemistry, 01 natural sciences, Copper, 0104 chemical sciences, Metal, Reaction rate, chemistry.chemical_compound, chemistry, Reagent, visual_art, visual_art.visual_art_medium, Methylene blue, Nuclear chemistry |
| الوصف: | This study presents the discoloration of methylene blue by heterogenous Fenton-like process using copper. Copper was prepared with sodium ascorbate, an eco-friendly reagent under atmospheric conditions and characterized using X-ray diffraction and scanning electron microscope analysis. Sub-micron-sized particles were formed and mainly composed of metallic copper Cu with the minor presence of Cu2O. The obtained product (labeled as CuR) was compared to a commercial zero-valent copper (labeled as CuF) in the discoloration process of methylene blue. Different parameters such as copper loading, temperature and initial dye concentration were studied. Under the same conditions, CuR and CuF registered 95.04% and 20.46%, respectively, after 10 min of reaction. The discoloration process was due to the in situ production of H2O2 which was evidenced by permanganate method. It was found the formation of 0.18 mM and 75 µM of H2O2 after 2 min of reaction with CuR and CuF, respectively. The reaction rate with CuR was 5 times faster than that with CuF and both followed a pseudo-first-order reaction kinetic. The high activity observed with CuR was found to be due to the presence of Cu2O. |
| تدمد: | 1735-2428 1735-207X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c96de83ee5f3b4bf9c1a226ec556d7ad https://doi.org/10.1007/s13738-019-01846-5 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........c96de83ee5f3b4bf9c1a226ec556d7ad |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 17352428 1735207X |
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