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Cassava starch: structural modification for development of a bio-adsorber for aqueous pollutants. Characterization and adsorption studies on methylene blue

dc.contributor.authorAlvarado N.
dc.contributor.authorAbarca R.L.
dc.contributor.authorUrdaneta J.
dc.contributor.authorRomero J.
dc.contributor.authorGalotto M.J.
dc.contributor.authorGuarda A.
dc.date.accessioned2020-09-02T22:11:09Z
dc.date.available2020-09-02T22:11:09Z
dc.date.issued2020
dc.identifier10.1007/s00289-020-03149-9
dc.identifier.issn01700839
dc.identifier.urihttps://hdl.handle.net/20.500.12728/3541
dc.descriptionA potential bio-adsorber of contaminants in aqueous medium was developed in this work through modified starches using organic acids. Methylene blue (MB) was used as example of a pollutant agent. For this purpose, firstly three types of modified starches were prepared using malonic, glutaric, and valeric acids in aqueous solution at different concentrations. The characterization of modified starches showed concordance with the chemical structure of the acid incorporated in starch. Pseudo-second-order model explains the rate of adsorption of the cationic dye MB. The adsorption of MB was carried out through intraparticle diffusion mechanism mainly. Physical and chemical interactions between modified starch and MB are involved. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
dc.language.isoen
dc.publisherSpringer
dc.subjectAdsorption
dc.subjectContaminants
dc.subjectMethylene blue
dc.subjectModified starch
dc.subjectOrganic acid
dc.subjectAdsorption
dc.subjectAromatic compounds
dc.subjectDyes
dc.subjectFatty acids
dc.subjectImpurities
dc.subjectOrganic acids
dc.subjectPollution
dc.subjectAdsorption studies
dc.subjectChemical interactions
dc.subjectIntra-particle diffusion
dc.subjectMethylene Blue
dc.subjectModified starches
dc.subjectPseudo-second order model
dc.subjectRate of adsorption
dc.subjectStructural modifications
dc.subjectStarch
dc.titleCassava starch: structural modification for development of a bio-adsorber for aqueous pollutants. Characterization and adsorption studies on methylene blue
dc.typeArticle


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