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AuthorMahmud, Nafis
AuthorBenamor, Abdelbaki
AuthorNasser, Mustafa S.
AuthorBa-Abbad, Muneer M.
AuthorEl-Naas, Muftah H.
AuthorMohammad, Abdul Wahab
Available date2022-09-29T06:48:43Z
Publication Date2021
Publication NameChemistrySelect
ResourceScopus
URIhttp://dx.doi.org/10.1002/slct.202003937
URIhttp://hdl.handle.net/10576/34646
AbstractIn this study, the application of the core-shell Fe3O4@SiO2 nano-catalysts for fenton-like degradation of malachite green dye has been presented. The nano-catalysts were prepared using a combination of solvothermal and sol-gel techniques and characterized using XRD, FTIR, SEM/EDX, TEM and VSM techniques. The effects of various reaction parameters on the degradation of malachite green dye using the prepared nano-catalysts were investigated. The optimal condition for pH, catalyst dosage and H2O2 amount were found to be at 6.7, 15 mg and 50 μL, respectively. Under the optimized conditions, a degradation efficiency of 96.18 % for malachite green dye was achieved using the catalyst within 30 minutes at 303 K with a pseudo first order rate constant of 0.1102 min−1. The plausible mechanism for MG degradation was determined to be the combination of adsorption and simultaneous decomposition via formation of hydroxyl radicals. The performance of the nano-catalyst was compared with other fenton-like catalysts reported in the literature. Finally, the magnetic properties of the Fe3O4@SiO2 catalysts was utilized for its successful recovery and application in multiple degradation cycles.
SponsorThis research was made possible by an NPRP Grant#10-0127-170270 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The authors would like to acknowledge the help Centre for Advanced Materials (CAM) at Qatar University and Mr. Abdullah Al Ashraf for providing XRD test data. SEM/EDX tests was accomplished in the Central Laboratories unit, Qatar University.
Languageen
PublisherWiley-Blackwell
SubjectDye
Fe3O4@SiO2
Fenton-degradation
Heterogeneous catalysis
Malachite green
Nanoparticles.
TitleEffective Heterogeneous Fenton-Like degradation of Malachite Green Dye Using the Core-Shell Fe3O4@SiO2 Nano-Catalyst
TypeArticle
Pagination865-875
Issue Number4
Volume Number6
dc.accessType Open Access


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