@misc{10498/28929,
year = {2023},
month = {3},
url = {http://hdl.handle.net/10498/28929},
abstract = {Hybrid organic–inorganic aerogels are highly hydrophobic porous solids that avoid the brittleness and moisture adsorption of the standard silica aerogels. Superhydrophobic porous materials have attracted great interest because of their ability for selective absorption of organic solvents while repelling water, as excellent candidates for remediation techniques. This work shows a comparative of three drying procedures of DEDMS/TEOS (diethoxydimethylsilane/tetraethylorthosilicate) gels, namely, by supercritical CO2, by supercritical ethanol, and dried at ambient conditions. Supercritical CO2 and ambient drying produced superhydrophobic aerogels (θ > 150°), while supercritical ethanol drying produces denser aerogels with smaller both porous volume and specific surface area. Regarding the absorption of organic liquids, swelling is observed in all cases. Hexane had faster diffusion that obeyed Fick's law (∝t0.5) whereas liquid polydimethylsiloxane exhibited slower non-Fickian diffusion process (∝tn, n < 0.5)},
publisher = {Elsevier},
keywords = {Ambigel},
keywords = {DEDMS-TEOS},
keywords = {Organic solvent remediation},
keywords = {Sono-aerogel},
keywords = {Supercritical CO2},
keywords = {Superhydrophobic},
title = {Effect of the drying procedure on hybrid sono-aereogels for organic solvent remediation},
doi = {10.1016/j.bsecv.2023.03.001},
author = {Reyes Peces, María Virtudes and Amaya Dolores, Beatriz and Morales Flórez, Víctor and Santos Martínez, Deseada María de los and Mesa Díaz, María del Mar and Esquivia, Luis and Rosa Fox, Nicolás Daniel de la and Piñero de los Ríos, Manuel},
}