Synthesis of stabilized iron nanoparticles from acid mine drainage and Rooibos tea for application as a Fenton-like catalyst

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dc.contributor.authorKimpiab, Elyse
dc.contributor.authorKapiamba, Kashala Fabrice
dc.contributor.authorPetrik, Leslie
dc.date.accessioned2022-08-30T12:23:07Z
dc.date.available2022-08-30T12:23:07Z
dc.date.issued2022
dc.description.abstractIntensive mining activities generate toxic acid mine drainage (AMD) effluents containing a high concentration of metals, including iron. The chemical synthesis of iron nanoparticles from this waste could lead to further environmental concerns. Therefore, the green synthesis of nanoparticles using plants has gained significant interest because of several benefits, including being eco-friendly. The current study reports a novel approach involving the synthesis of stabilized iron nanoparticles from AMD using rooibos tea extract. An aqueous solution of rooibos tea was prepared and titrated with AMD to reduce Fe2+/Fe3+. The samples synthesized under optimum conditions were characterized by TEM, XRD, FTIR, UV−Vis, and EDS. The results revealed that the nanoparticles had an average particle size of 36 nm with a spherical shape. These particles showed promising application as a Fentonlike catalyst for the degradation of textile dye (orange II sodium salt) with a removal efficiency of 94% within 30 min. Thus, the stabilized iron nanoparticles synthesized here performed in higher ranges than the currently reported Fenton-like catalysts regarding dye removal efficiency and reaction time.en_US
dc.identifier.citationKimpiab, E. et al. (2022). Synthesis of stabilized iron nanoparticles from acid mine drainage and Rooibos tea for application as a Fenton-like catalyst. ACS Omega, 7(28), 24423-24431. 10.1021/acsomega.2c01846en_US
dc.identifier.issn2470-1343
dc.identifier.uri10.1021/acsomega.2c01846
dc.identifier.urihttp://hdl.handle.net/10566/7783
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.subjectIron nanoparticlesen_US
dc.subjectAciden_US
dc.subjectRooibos teaen_US
dc.subjectFentonen_US
dc.subjectMiningen_US
dc.titleSynthesis of stabilized iron nanoparticles from acid mine drainage and Rooibos tea for application as a Fenton-like catalysten_US
dc.typeArticleen_US

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