Busca avançada
Ano de início
Entree


Anomalous Diffusion and Non-Markovian Reaction of Particles near an Adsorbing Colloidal Particle

Texto completo
Autor(es):
Gryczak, Derik W. ; Lenzi, Ervin K. ; Rosseto, Michely P. ; Evangelista, Luiz R. ; da Silva, Luciano R. ; Lenzi, Marcelo K. ; Zola, Rafael S.
Número total de Autores: 7
Tipo de documento: Artigo Científico
Fonte: FLUIDS; v. 9, n. 10, p. 19-pg., 2024-10-01.
Resumo

We investigate the diffusion phenomenon of particles in the vicinity of a spherical colloidal particle where particles may be adsorbed/desorbed and react on the surface of the colloidal particle. The mathematical model comprises a generalized diffusion equation to govern bulk dynamics and kinetic equations which can describe non-Debye relaxations and is used for the colloid's surface. For the reaction processes, we also consider the presence of convolution kernels, which offer the flexibility of describing a single process or process with intermediate reactions before forming the final species. Our analysis focuses on analytical and numerical calculations to obtain the particles' behavior on the colloidal particle's surface and to determine how it affects the diffusion of particles around it. The solutions obtained show various behaviors that can be connected to anomalous diffusion phenomena and may be used to describe the ever-richer science of colloidal particles better. (AU)

Processo FAPESP: 14/50983-3 - INCT 2014: fluidos complexos
Beneficiário:Antonio Martins Figueiredo Neto
Modalidade de apoio: Auxílio à Pesquisa - Temático