Study of Acetylsalicylic Acid Adsorption Using Molecular Sieves

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dc.contributor.author Assumpcao, G. A. [UNIFESP]
dc.contributor.author Poco, J. G. R.
dc.contributor.author Fernandez-Felisbino, R. [UNIFESP]
dc.contributor.author Cardoso, D.
dc.contributor.author Gomes, E. L. [UNIFESP]
dc.date.accessioned 2016-01-24T14:40:02Z
dc.date.available 2016-01-24T14:40:02Z
dc.date.issued 2015-02-01
dc.identifier http://dx.doi.org/10.1260/0263-6174.33.2.203
dc.identifier.citation Adsorption Science & Technology. Brentwood: Multi-science Publ Co Ltd, v. 33, n. 2, p. 203-221, 2015.
dc.identifier.issn 0263-6174
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/38740
dc.description.abstract Molecular sieves can be used as a host matrix to encapsulate several drugs. Here, we studied the adsorption of acetylsalicylic acid (ASA) in HUS-Y, HZSM-5 and silicalite-1 zeolites, as well as in the mesoporous sieve Si-MCM-41, and compared their adsorption capacities. the materials used generally presented good performance for ASA adsorption. Among the zeolites studied, HZSM-5 adsorbed large amounts of drug than the others. the Si-MCM-41 samples synthesized with fumed silica presented better adsorption performance than those synthesized with tetraethyl orthosilicate. the best mesoporous sample for adsorption synthesized with fumed silica was chosen for the kinetic assay. the adsorption kinetics of ASA for this sample fitted well to a second-order model. the initial loading rate and diffusion coefficient for the ASA-mesoporous sieve system were 0.153% (mg ASA)/(mg solid/minute) and 5.02 x 10(-17) m(2)/s, respectively. the materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and nitrogen physisorption. en
dc.format.extent 203-221
dc.language.iso eng
dc.publisher Multi-science Publ Co Ltd
dc.relation.ispartof Adsorption Science & Technology
dc.rights Acesso restrito
dc.title Study of Acetylsalicylic Acid Adsorption Using Molecular Sieves en
dc.type Artigo
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.contributor.institution Univ Ctr FEI
dc.contributor.institution Universidade Federal de São Carlos (UFSCar)
dc.description.affiliation Universidade Federal de São Paulo, UNIFESP, Chem Engn Sect, Dept Exact & Earth Sci, BR-09972270 São Paulo, Brazil
dc.description.affiliation Univ Ctr FEI, Fac Ind Engn, Dept Chem Engn, BR-09850901 São Paulo, Brazil
dc.description.affiliation Fed Univ Sao Carlos UFSCar, Dept Chem Engn, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo, UNIFESP, Chem Engn Sect, Dept Exact & Earth Sci, BR-09972270 São Paulo, Brazil
dc.identifier.doi 10.1260/0263-6174.33.2.203
dc.description.source Web of Science
dc.identifier.wos WOS:000352264600011



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