Mesoporous Silica Synthesis
Mesoporous Silica Synthesis - Related Videos
11:02
Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
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2015
Here, we present a protocol with a sol-gel process to synthesize gold intercalated in the walls of mesoporous materials (GMS), which is confirmed to possess a mesoporous matrix with gold intercalated in the walls imparting great stability and recyclability.
13:00
Low Molecular Weight Protein Enrichment on Mesoporous Silica Thin Films for Biomarker Discovery
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Cited by 11 •
2012
We developed a technology based on mesoporous silica thin film for the selective recovery of low molecular weight proteins and peptides from human serum. The physico-chemical properties of our mesoporous chips were finely tuned to provide substantial control in peptide enrichment and consequently profile the serum proteome for diagnostic purposes.
09:11
Porosimetry of a Silica Alumina Powder
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Surface area and pore size distribution are attributes used by adsorbent and catalyst manufacturers and users to ensure quality control and to determine when products are at the end of their useful lives. The surface area of a porous solid is directly related to its adsorption capacity or catalytic activity. The pore size distribution of an adsorbent or catalyst is...
05:50
Facile Preparation of Ultrafine Aluminum Hydroxide Particles with or without Mesoporous MCM-41 in Ambient Environments
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Cited by 2 •
2017
An ultrafine aluminum hydroxide nanoparticle suspension was prepared via the controlled titration of [Al(H2O)]3+ with L-arginine to pH 4.6 with and without cage-effect confinement within mesoporous channels of MCM-41.
07:51
Fabrication of Silica Ultra High Quality Factor Microresonators
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Cited by 22 •
2012
We describe the use of a carbon dioxide laser reflow technique to fabricate silica resonant cavities, including free-standing microspheres and on-chip microtoroids. The reflow method removes surface imperfections, allowing long photon lifetimes within both devices. The resulting devices have ultra high quality factors, enabling applications ranging from telecommunications to biodetection.
FAQs
The template organizes silica-forming species into a structured arrangement during synthesis. As the silica network develops around this organized template, its arrangement helps establish the eventual pore geometry and internal ordering. After the silica framework has formed, removing the template reveals the pore system. Changing template conditions therefore provides a route to tuning pore size, geometry, and particle morphology.
Silica precursors first undergo hydrolysis, in which precursor-derived groups react with water, followed by condensation reactions that build the silica network. These transformations occur while the surfactant or block-copolymer template organizes the developing structure. The resulting framework retains the template-defined arrangement until template removal exposes the internal pores and produces the final mesoporous material.
Template removal converts a silica-template composite into an accessible porous material. Calcination or extraction eliminates the organizing component while leaving the formed silica framework and its internal structure. The choice of removal route is therefore part of the synthesis design, because successful removal is required for the pores to become available for adsorption, catalysis, separation, sensing, or controlled delivery.
A typical workflow combines a silica precursor with a surfactant or block-copolymer template under conditions that permit hydrolysis and condensation. The forming silica network organizes around the template, after which the composite undergoes calcination or extraction to remove it. Researchers then obtain a silica material whose pore system and particle morphology reflect the selected composition and reaction parameters.
Researchers can modify precursor composition, template conditions, and reaction parameters to influence the resulting material. These variables affect how the silica network forms around the organizing template and can alter pore size, geometry, and particle morphology. Such control allows the material structure to be matched to intended functions, including adsorption, catalysis, separation, sensing, and controlled delivery.
The resulting materials are useful when a high-area, tunable internal structure is important. Their pore systems support adsorption and separation, while the silica framework can serve applications in catalysis and sensing. They are also relevant to controlled delivery. These uses connect the synthesis to chemistry, materials science, and nanotechnology by linking molecular-scale preparation with functional material performance.