Iron oxide nanoparticles obtained from steel waste recycling as a green alternative for Congo red dye fast adsorption
Ketlyn Wolfart Borth, Carlos William Galdino, Verônica de Carvalho Teixeira, Fauze Jacó Anaissi
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Agradecimentos: The authors thank the funding agencies: CNPq, CAPES (Finance code 0001), Finep and Fundação Araucária. They also thank the XAFS1 and XRD1/LNLS/CNPEM and the Mass Spectrometry Laboratory/LNBio/CNPEM infrastructure and their staff for XANES, XRD and NTA measurements. We kindly thank...
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Agradecimentos: The authors thank the funding agencies: CNPq, CAPES (Finance code 0001), Finep and Fundação Araucária. They also thank the XAFS1 and XRD1/LNLS/CNPEM and the Mass Spectrometry Laboratory/LNBio/CNPEM infrastructure and their staff for XANES, XRD and NTA measurements. We kindly thank Dr. Mateus Cardoso (LNLS/CNPEM) for the B.E.T. and Zeta potential experiments , Tatiana Lima Valério for the voltammetry measurements at Federal University from Paraná (UFPR) and Dr. Fabio Rodrigues and the Quimiosfera group from the University of São Paulo for the Raman spectroscopy studies
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Abstract: Iron oxides can be applied as adsorbents to remove harmful substances from the water used in the textile process. If these oxides can be synthetized through acid digestion of ferrous metal compounds, they can create a cycle of pollutants control from pollutant materials. In this study, two...
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Abstract: Iron oxides can be applied as adsorbents to remove harmful substances from the water used in the textile process. If these oxides can be synthetized through acid digestion of ferrous metal compounds, they can create a cycle of pollutants control from pollutant materials. In this study, two iron oxides were synthetized from steel waste, through razor blades (RB) and bottle caps (BC) acid digestion followed by coprecipitation, for application as Congo red dye adsorbent. Studies about the structure, composition and materials' properties were obtained through x-ray fluorescence, x-ray diffractometry, x-ray absorption, Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, UV-Vis electronic spectroscopy, nanoparticle tracking analysis, zeta potential and Brunauer, Emmett, Teller method. The structural and composition analysis showed a mixture of iron oxide phases and nanometric average particle sizes. The oxides presented maximum adsorption capacity (q(max)) of 418.41 mg.g(-1) for IO-RB, and 104.17 mg.g(-1) to IO-BC, at mom temperature. Furthermore, the particles present magnetic properties from the produced iron oxide that facilitates their removal from the system, after application. The adsorbents were characterized after adsorption through the same initial techniques||thus, the produced compounds and the adsorption capacity of each oxide were correlated
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FINANCIADORA DE ESTUDOS E PROJETOS - FINEP
FUNDAÇÃO ARAUCÁRIA DE APOIO AO DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO DO ESTADO DO PARANÁ - FAPPR
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Iron oxide nanoparticles obtained from steel waste recycling as a green alternative for Congo red dye fast adsorption
Ketlyn Wolfart Borth, Carlos William Galdino, Verônica de Carvalho Teixeira, Fauze Jacó Anaissi
Iron oxide nanoparticles obtained from steel waste recycling as a green alternative for Congo red dye fast adsorption
Ketlyn Wolfart Borth, Carlos William Galdino, Verônica de Carvalho Teixeira, Fauze Jacó Anaissi
Fontes
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Applied surface science Vol. 546 (Apr., 2021), n. art. 149126, p. 1-13 |