We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Ferromagnetic Biochar Prepared from Hydrothermally Modified Calcined Mango Seeds for Fenton-like Degradation of Indigo Carmine.
- Authors
Bopda, Aurelien; Mafo, Sandrale Grace Mokue; Ndongmo, Josiane Nguimatsia; Kenda, Georges Teikam; Fotsop, Cyrille Ghislain; Kuete, Idris-Hermann Tiotsop; Ngakou, Christian Sadeu; Tchuifon, Donald Raoul Tchuifon; Tamo, Arnaud Kamdem; Nche, George Ndifor-Angwafor; Anagho, Solomon Gabche
- Abstract
Biochar and ferromagnetic biochar obtained from the pyrolysis of dried mango seeds and modified using a hydrothermal method were used as catalyst for the heterogeneous degradation of indigo carmine in an aqueous medium. These prepared biochars were characterized using different techniques: Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The analyses of the results revealed the presence of iron oxide in the form of magnetite (Fe3O4) in the catalyst. The catalytic tests carried out with this composite material showed a significant degradation of indigo carmine. The maximum degradation of indigo carmine in the aqueous solution was reached after 240 min of agitation. The Fenton degradation process using irradiation with a 100 W electric lamp and hydrogen peroxide (concentration 4 mol/L) showed the best results at pH = 3. From this study, it emerged that the second-order kinetic model better described the degradation process, and it gave lower half-lives compared to those obtained with the first-order kinetic law. The study also showed that ferromagnetic biochar could be prepared from mango seeds and used for the degradation of indigo carmine in an aqueous solution.
- Subjects
FOURIER transform infrared spectroscopy techniques; BIOCHAR; ENERGY dispersive X-ray spectroscopy
- Publication
C, 2022, Vol 8, Issue 4, p81
- ISSN
2311-5629
- Publication type
Article
- DOI
10.3390/c8040081