Co adsorption in kaolinite

dc.creatorSOUZA, ELIEL S.
dc.creatorSILVA, PAULO S.C.
dc.date2019
dc.date2019-07-26T18:56:43Z
dc.date2019-07-26T18:56:43Z
dc.date.accessioned2023-09-28T14:11:06Z
dc.date.available2023-09-28T14:11:06Z
dc.identifier2319-0612
dc.identifierhttp://repositorio.ipen.br/handle/123456789/29963
dc.identifier2A
dc.identifier7
dc.identifier10.15392/bjrs.v7i2A.658
dc.identifierSem Percentil
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9000201
dc.descriptionAdsorption of metal ions in clay minerals has been used as an alternative to water and effluents treatment. Kao-linite is a clay mineral that presents low specific surface area and exchange ion capacity. Nevertheless, structural modifications can be achieved by means of acid or thermal activation. In this paper, it was studied the surface area of kaolinite/bentonite, kaolinite/activated carbon mixtures, thermal activated kaolinite and thermal activat-ed kaolinite/activated carbon mixture. The mixture of kaolinite/activated carbon was tested for pH, contact time, interfering ions and initial concentration effects in the cobalt adsorption. Results showed that the optimized pa-rameters are pH 6 and contact time of 30 min. Chromium acted as a competitive ion, zinc does not appear to have affected adsorption while iron seems to have favored it. Langmuir and Freundlich isotherms indicated that the adsorption of Co in the mixture of kaolinite/activated carbon is a spontaneous process.
dc.format1-15
dc.relationBrazilian Journal of Radiation Sciences
dc.rightsopenAccess
dc.sourceThe Meeting on Nuclear Applications (ENAN), 13th, 22-27 de outubro, 2017, Belo Horizonte, MG
dc.subjectkaolinite
dc.subjectbentonite
dc.subjectcobalt ions
dc.subjectcalcination
dc.subjectactivated carbon
dc.subjectadsorption
dc.subjectinterfering elements
dc.subjectmixtures
dc.subjectneutron activation analysis
dc.subjectph value
dc.subjectsurface area
dc.subjectwaste water
dc.titleCo adsorption in kaolinite
dc.typeArtigo de peri??dico
dc.coverageN


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