In our samples, in which we are sure that all the aqueous solution containing the inorganic salts is located inside the pores, a silica oxide porous template is used to modify the rate of spinel nanoparticles cooling down. This rate is important since it can affect inversion proportions in spinels (the inversion between octahedral and tetrahedral cations)
2-what is the application Silica ?
Most silicon is used industrially without being purified, and indeed often with comparatively little processing from its natural form. Over 90% of the Earth's crust is composed of silicate minerals, which are compounds of silicon and oxygen, often with metallic ions when negatively charged silicate anions require cations to balance the charge. Many of these have direct commercial uses, such as clays, silica sand and most kinds of building stone. Thus, the vast majority of uses for silicon are as structural compounds, either as the silicate minerals or silica (crude silicon dioxide). Silicates are used in making Portland cement (made mostly of calcium silicates) which is used in building mortar and modern stucco, but more importantly, combined with silica sand, and gravel (usually containing silicate minerals like granite), to make the concrete that is the basis of most of the very largest industrial building projects of the modern world.[59]
Silica is used to make fire brick, a type of ceramic. Silicate minerals are also in whiteware ceramics, an important class of products usually containing various types of fired clay minerals (natural aluminium phyllosilicates). An example is porcelain which is based on the silicate mineral kaolinite. Traditional glass (silica-based soda-lime glass) also functions in many of the same ways, and is also used for windows and containers. In addition, specialty silica based glass fibers are used for optical fiber, as well as to produce fiberglass for structural support and glass wool for thermal insulation.
Silicones are often used in waterproofing treatments, molding compounds, mold-release agents, mechanical seals, high temperature greases and waxes, and caulking compounds. Silicone is also sometimes used in breast implants, contact lenses, explosives and pyrotechnics.[60] Silly Putty was originally made by adding boric acid to silicone oil.[61] Other silicon compounds function as high-technology abrasives and new high-strength ceramics based upon silicon carbide. Silicon is a component of some superalloys.
Dear Salim Oudah Mezan
Shipping link where you will find Doctoral Thesis of Marina Martínez Carmona, entitled "Mesostructured silica nanomaterials: Application in infection and cancer" of the UNIVERSIDAD COMPLUTENSE DE MADRID FACULTY OF PHARMACY Department of Inorganic Chemistry 2016
regards Jose Luis
http://eprints.ucm.es/42925/1/T38841.pdf
silica can be used in many applications including medical application and electronic applications and industrials ones also
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