dc.contributor.author | Freitas, Patrícia Antônio de Menezes | |
dc.contributor.author | Iha, Koshun | |
dc.contributor.author | Suárez-Iha, Maria Encarnación Vazquez | |
dc.date.accessioned | 2024-10-15T21:07:36Z | |
dc.date.available | 2024-10-15T21:07:36Z | |
dc.date.issued | 2007 | |
dc.identifier.issn | 0021-9797 | |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-33847044809&doi=10.1016%2fj.jcis.2006.11.031&partnerID=40&md5=1a1dc7a2a93e4737b7979a5b713fe690 | |
dc.identifier.uri | https://repositorio.maua.br/handle/MAUA/1169 | |
dc.description.abstract | The kinetics of DPKSH (di-2-pyridylketone salicyloylhydrazone) adsorption onto silica gel has been investigated at (25 ± 1) ° C and pH 1 and 4.7. The kinetics of adsorption of DPKSH is discussed using three kinetic models, the first-order Lagergren model, the pseudo-second-order model, and the intraparticle diffusion model. The adsorption of DPKSH, at pH 1 and 4.7, onto silica gel proceeds according to the pseudo-second-order model and the correlation coefficients were very close to 1. The intraparticle diffusion of DPKSH molecules within the silica gel particles was identified as the rate-limiting step. The parameters of the pseudo-second-order model are qmax, calc = 1.02 × 10-4 and 1.5 × 10-4 g DPKSH/g silica; k2 = 3.01 × 104 and 9.67 × 104 h-1 g silica/g DPKSH, respectively, for pH 1 and 4.7. © 2006 Elsevier Inc. All rights reserved. | en |
dc.description.sponsorship | CNPq | |
dc.description.sponsorship | FAPESP | |
dc.language | Inglês | pt_BR |
dc.publisher | Academic Press Inc. | en |
dc.relation.ispartof | Journal of Colloid and Interface Science | |
dc.rights | Acesso Restrito | |
dc.source | Scopus | en |
dc.subject | Adsorption | en |
dc.subject | DPKSH | en |
dc.subject | Kinetic models | en |
dc.subject | Silica gel | en |
dc.subject | Diffusion | en |
dc.subject | Molecular structure | en |
dc.subject | Reaction kinetics | en |
dc.subject | di 2 pyridylketone salicyloylhydrazone | en |
dc.subject | hydrazone derivative | en |
dc.subject | silica gel | en |
dc.subject | unclassified drug | en |
dc.subject | Di-2-pyridylketone salicyloylhydrazone (DPKSH) | en |
dc.subject | Intraparticle diffusion | en |
dc.subject | article | en |
dc.subject | correlation coefficient | en |
dc.subject | diffusion | en |
dc.subject | kinetics | en |
dc.subject | pH | en |
dc.subject | priority journal | en |
dc.subject | Ketones | en |
dc.title | Kinetic modeling of adsorption of di-2-pyridylketone salicyloylhydrazone on silica gel | en |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.doi | 10.1016/j.jcis.2006.11.031 | |
dc.description.affiliation | Instituto de Química, Universidade de São Paulo, CEP 05513-970 São Paulo, SP, Caixa Postal 26077, Brazil | |
dc.description.affiliation | Instituto Mauá de Tecnologia, Escola de Engenharia Mauá, São Caetano do Sul, SP, Brazil | |
dc.description.affiliation | Departamento de Química, Instituto Tecnológico de Aeronáutica-CTA, São José dos Campos, SP, Brazil | |
dc.description.affiliation | Centro de Ciências e Humanidades, Universidade Presbiteriana Mackenzie, São Paulo, SP, Brazil | |
dc.identifier.scopus | 2-s2.0-33847044809 | |
dc.citation.issue | 1 | |
dc.citation.epage | 28 | |
dc.citation.spage | 24 | |
dc.citation.volume | 307 | |