TBO Degradation by Heterogeneous Fenton-like Reaction Using Fe Supported over Activated Carbon

Autor:	Brahim Samir, Nabil Bouazizi, Zahra Sadaoui, Julien Vieillard, Ouiza Allalou, Franck Le Derf, Soumia Bakhta
Rok vydání:	2021
Předmět:	Materials science Aqueous solution Scanning electron microscope Chemical technology TP1-1185 Fenton reaction wastewater treatment iron activated carbon catalysis toluidine blue O Chemical reaction Catalysis Chemistry X-ray photoelectron spectroscopy medicine Degradation (geology) Physical and Theoretical Chemistry Fourier transform infrared spectroscopy QD1-999 Nuclear chemistry Activated carbon medicine.drug
Zdroj:	Catalysts, Vol 11, Iss 1456, p 1456 (2021) Catalysts; Volume 11; Issue 12; Pages: 1456
ISSN:	2073-4344
DOI:	10.3390/catal11121456
Popis:	This study reports on the synthesis, immobilization, and stabilization of iron (Fe) particles in activated carbon (AC) from date stem material for the heterogeneous Fenton-like removal of hazardous pollutants from water. AC-Fe was synthesized through a simple and sustainable chemical reaction using and resulting in an environmentally friendly material (AC-Fe). X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray analyses (EDX) were used to characterize the synthesized samples. XRD, FTIR and XPS results showed the successful incorporation of iron particles onto AC. SEM images indicated smooth surfaces with clearly visible Fe particles. Compared to pure AC, AC-Fe showed higher degradation rates of toluidine blue O (TBO) dye. The effects of the initial pH and TBO and H2O2 concentrations on TBO degradation were investigated. The AC-Fe catalyst proved highly efficient in the Fenton-like degradation of TBO (50 ppm), with the removal of up to 99% in 3 min. This catalyst was used efficiently for up to four repeated cycles. The improved catalytic activity of AC-Fe was related to Fe particles for the generation of HO•. These results prove that date stems—a waste product from agriculture—are a suitable precursor for preparing an appropriate AC and catalyst and for eliminating dyes from an aqueous solution by a heterogeneous Fenton-like reaction. The above results open an interesting avenue for the development of functional green catalysts based on AC-Fe for pollution removal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48d3bec852fe68916c1381cdba3ea1c6 https://doi.org/10.3390/catal11121456 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.