Academic Journal
Fenton-like oxidation of phenol with in-situ generated hydrogen peroxide and Pd/Fe-zeolite catalysts
| العنوان: | Fenton-like oxidation of phenol with in-situ generated hydrogen peroxide and Pd/Fe-zeolite catalysts |
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| المؤلفون: | Shailesh S. Sable, Anett Georgi, Sandra Contreras, Francesc Medina |
| المصدر: | Water-Energy Nexus, Vol 4, Iss , Pp 95-102 (2021) |
| بيانات النشر: | KeAi Communications Co., Ltd. |
| سنة النشر: | 2021 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Adsorption, Advanced Oxidation Processes (AOPs), Degradation, Fenton-like reaction, Fe-ZSM5 zeolites, Palladium, River, lake, and water-supply engineering (General), TC401-506, Water supply for domestic and industrial purposes, TD201-500, Energy industries. Energy policy. Fuel trade, HD9502-9502.5 |
| الوصف: | Two types of iron-containing zeolites with different surface hydrophobicity, Fe-ZSM5 (SiO2/Al2O3 = 26) and Fe-ZSM5 (SiO2/Al2O3 = 236) were studied as adsorbents and catalysts for oxidation of phenol by means of a Fenton-like process at ambient conditions and nearly neutral pH, with and without in-situ generation of H2O2. Adsorption of phenol is more favorable on high silica Fe-ZSM5 (236) zeolite due to its higher surface hydrophobicity. Palladium (Pd) immobilization on Fe-ZSM5 zeolites has a positive impact on phenol degradation with a synergistic role of Pd and Fe (II)/(III) for activation of H2O2. The best result for phenol conversion and mineralization was observed over both hydrophilic and hydrophobic 0.1 wt.% Pd/Fe-ZSM5 with commercial H2O2 achieving ≥ 90% conversion of phenol (100 mg/L) in 4 h and 60–63% mineralization in 6 h with 5 g/L catalyst and 5 g/L H2O2. In addition, Pd/Fe-ZSM5 can be used for in-situ formation of H2O2 using formic acid as H-source and externally supplied oxygen. The combination of these processes provided by this adsorbent/catalyst material is exploitable for on-site oxidative regeneration of zeolite adsorbents. This study shows that Fe-containing zeolites are promising catalysts for a combined approach of adsorption/oxidative degradation of phenol by commercial or in-situ produced H2O2. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2588-9125 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2588912521000084; https://doaj.org/toc/2588-9125; https://doaj.org/article/dd2cbd5efca9471f980c1f885c883201 |
| DOI: | 10.1016/j.wen.2021.06.001 |
| الاتاحة: | https://doi.org/10.1016/j.wen.2021.06.001 https://doaj.org/article/dd2cbd5efca9471f980c1f885c883201 |
| رقم الانضمام: | edsbas.E6811016 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 25889125 |
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| DOI: | 10.1016/j.wen.2021.06.001 |