Open AccessControllability of pore size on macroporous sol-gel silica films embedding rhodamine 6G
Author(s) -
J. Castañeda-Contreras,
Héctor Pérez Ladrón de Guevara,
M. A. Menéses-Nava,
Virginia F. Marañón-Ruiz,
Roger Chiu,
R.A. Rodríguez-Rojas,
Rita Patakfalvi
Publication year - 2021
Publication title -
journal of applied research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 30
ISSN - 2448-6736
DOI - 10.22201/icat.24486736e.2021.19.2.1578
Subject(s) - rhodamine 6g , spin coating , materials science , sol gel , evaporation , chemical engineering , coating , condensation , composite material , chemistry , nanotechnology , organic chemistry , molecule , thermodynamics , physics , engineering
A facile method is reported to synthesize macroporous silica films embedding rhodamine 6G. The films were obtained by sol-gel and spin-coating processes. Results pointed out a dependence of pore formation on the addition of rhodamine 6G in the film composition. The probable formation process of the pores was attributed to the aggregation of charged species from rhodamine 6G. Although the pores were randomly distributed on the film surface, the pore size was tuned at certain extent by controlling the evaporation and condensation rates at early stages of spin coating. Results indicated that the evaporation rate determined the pore size distribution of the films.