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Adsorptive properties of silica gel for biodiesel refining
(American Chemical Society, 2008-11)
The refining of biodiesel by adsorption over silica gel was assessed. Silica gel samples were used for the adsorption of glycerol and monoglycerides. Room-temperature isotherms for the adsorption of glycerol were measured ...
Preparation and characterization of bentonite nanocomposites via sol–gel process
(Springer, 2019-07-22)
Different nanocomposites silica-resin based were prepared and characterized in order to achieve a porous monolith that contains bentonite and allows the flow of aqueous systems. The bentonite used to prepare the nanocomposites ...
Improved antimicrobial activity of silica–Cu using a heteropolyacid and different precursors by sol–gel: synthesis and characterization
(Springer, 2015-04-24)
Antimicrobial paintings incorporate biocides in low concentrations to avoid the proliferation of fungi and bacteria inside urban buildings. This study is focused on evaluating the antifungal activity of copper (II) supported ...
Improved antimicrobial activity of silica-Cu using a heteropolyacid and different precursors by sol-gel: synthesis and characterization
(Springer, 2015-04-24)
Antimicrobial coatings are used to avoid the proliferation of fungi and bacteria inside urban buildings by incorporating low concentrations of antimicrobial agents (biocides). This study is focused on evaluating the ...
Improved corrosion resistance of AA2024 alloys through hybrid organic-inorganic sol-gel coatings produced from sols with controlled polymerisation
(Elsevier Science Sa, 2009-03)
In this work we present the development of a nanocomposite material composed by silica nanoparticles in a hybrid organic-inorganic sol-gel matrix for corrosion protection of aluminium alloys. The sol-gel matrix was produced ...
Synthesis of silica-based materials using bio-residues through the sol-gel technique
(Multidisciplinary Digital Publishing Institute, 2021-11)
This study focused on the use of citrus bio-waste and obtention of silica-based materialsthrough the sol-gel technique for promoting a greener and more sustainable catalysis. The solgel method is a versatile synthesis route ...
Sulfonamidoglycosylation of Methyl Glycosides Employing Perchloric Acid Supported on Silica Gel
(Taylor & Francis, 2008-06)
The sulfonamidoglycosylation of methyl glycosides in the presence of perchloric acid immobilized on silica gel proceeded effectively to afford the corresponding sulfonamido glycosides with good to high yields with minimal ...
Rapid pore expansion of mesoporous silica-based materials using microwave irradiation and pore swelling agents
(Elsevier, 2021-12)
In the present work we analyze the use of microwave radiation in the presence of pore swelling agents as a post-synthesis treatment for expanding the pore size of non-calcined SiO2-based mesoporous materials. In comparison ...
Plastic silica conglomerate with an extremophile microbial matrix in a hot-water stream paleoenvironment
(Mary Ann Liebert, 2019-05)
A new and unusual type of fossil, siliceous hot-spring deposit (sinter) comprising monomictic, quartzose conglomerate encrusted with silicified microbial laminates has been recognized in distal portions of Jurassic and ...
Analysis of CO<inf>2</inf> adsorption in amine-functionalized porous silicas by molecular simulations
(American Chemical Society, 2015-06-01)
We present the results of a combined experimental-molecular simulations approach concerning the capacity for CO<inf>2</inf> adsorption of aminosilica hybrid products synthesized using supercritical fluids. Two porous ...