Results 41 to 50 of about 22,015 (273)
Sol–gel synthesis of highly TiO2 aerogel photocatalyst via high temperature supercritical drying
Journal of Saudi Chemical Society, 2017 Nanocrystalline powders of TiO2 xerogel and aerogel were prepared by using acid-modified sol–gel approach. For TiO2 aerogel material (TA), the solvent was high temperature supercritically extracted at 300 °C and 100 bars.
Rebah Moussaoui +4 more
doaj +1 more source
Investigation of adsorption of Chromium & Copper ions on TEOS xerogel [PDF]
شیمی کاربردی روز, 2017 In this research, TEOS xerogel was produced by sol-gel method and the best adsorbents for removal of heavy metals were chosen by test on this xerogel. TEOS xerogel was used for adsorption of Cr(III) and Cu(II). Various parameters such as contact time, pH,
Ali Aslrousta, Khamal haghbeen
doaj +1 more source
Molybdate Recovery by Adsorption onto Silica Matrix and Iron Oxide Based Composites
Gels, 2022 Aggressive industrial development over the last century involved different heavy metals being used, including high quantities of molybdenum, which need to be treated before discharge in industrial waters.
Florin Matusoiu +6 more
doaj +1 more source
Recent insights into xerogel and aerogel mineral composites for CO 2 mineral sequestration [PDF]
, 2011 Supercritically dried composites have already been analysed and proposed as carbon dioxide sequesters. However, the economical and energetic costs of the supercritical drying process had to be re-evaluated, and were eventually found not to enhance the ...
Esquivias Fedriani, Luis María +2 more
core +1 more source
, 2020 In this work, a series of carbon xerogel/graphene hybrids were synthesized from resorcinol and formaldehyde by adding increasing loadings of graphene oxide (GO) solution.
S. Segovia-Sandoval +5 more
semanticscholar +1 more source
Microstructural properties of non-supported microporous ceramic membrane top-layers obtained by the sol-gel process [PDF]
, 1996 Dried and calcined non-supported membrane top-layers of SiO2, SiO2/TiO2, SiO2/ZrO2 (10, 20 and 30 mol% TiO2 and ZrO2, respectively) and SiO2/Al2O3 (10 mol% AlO1.5) were prepared using acid catalyzed hydrolysis and condensation of alkoxides in ethanol ...
Burggraaf, A.J. +3 more
core +2 more sources
Synthesis, characterization and photocatalytic activity of TiO2 supported natural palygorskite microfibers [PDF]
, 2011 This study deals with the synthesis of TiO2 supported Moroccan palygorskite fibers and their use as photocatalyst for the removal of Orange G pollutant from wastewater.
Amjoud, M'barek +7 more
core +2 more sources
Graphitized Carbon Xerogels for Lithium-Ion Batteries [PDF]
Materials, 2019 Carbon xerogels with different macropore sizes and degrees of graphitization were evaluated as electrodes in lithium-ion batteries. It was found that pore structure of the xerogels has a marked effect on the degree of graphitization of the final carbons.
Maria Canal-Rodríguez +4 more
openaire +3 more sources
Stable hydrosols for TiO2 coatings [PDF]
, 2010 The optimum processing parameters required to synthesize, by hydrolysis of titanium isopropoxide (TIP), highly stable hydrosols composed of nanoparticles of the smallest possible size, are deduced both from data available in literature and from our own ...
Alphonse, Pierre +2 more
core +2 more sources