Mesoporous silica obtained with methyltriethoxysilane as co-precursor in alkaline medium

  title={Mesoporous silica obtained with methyltriethoxysilane as co-precursor in alkaline medium},
  author={Ana-Maria Putz and Kunzhou Wang and Ad{\'e}l Len and Jir̆{\'i} Plocek and Petr Bezdi{\vc}ka and Gennady P. Kopitsa and Tamara V. Khamova and Cuatualin Ianuacsi and Liviu Suacuarescu and Zuzana Mitr'oov'a and Cecilia Savii and Minhao Yan and L'aszl'o Alm'asy},
  journal={Applied Surface Science},
Abstract Mesoporous silica particles have been synthesized by sol–gel method from tetraethoxysilane (tetraethylorthosilicate, TEOS) and methyltriethoxysilane (MTES), in ethanol and water mixture, at different ratios of the of the silica precursors. Ammonia was used as catalyst at room temperature and hexadecyltrimethylammonium bromide (cetyltrimethylammonium bromide, CTAB) as the structure directing agent. Nitrogen sorption, X-ray diffraction and small-angle neutron scattering gave information… 
Hydrogen storage performances for mesoporous silica synthesized with mixed tetraethoxysilane and methyltriethoxysilane precursors in acidic condition
Abstract H2 adsorption properties of ordered mesoporous silica prepared with different ratios of functionalized precursors have been studied. Silica particles were synthesized by sol-gel method, with
Effects of twin methyl groups insertion on the structure of templated mesoporous silica materials
  • A. Borówka
  • Materials Science
    Ceramics International
  • 2019
Abstract In this paper, the effects of dimethyldiethoxysilane (DMDES) addition on the sol-gel process in preparation of mesoporous hybrid silicates containing twin methyl groups, were investigated.
Functionalized silica materials synthesized via co-condensation and post-grafting methods
Abstract Mesoporous silica particles have been prepared with functionalized precursors, used either in situ co-condensation process or as post-synthesis grafting agents, in order to deliver surface
Application of organosilicate matrix based on methyltriethoxysilane, PVA and bacteria Paracoccus yeei to create a highly sensitive BOD
The study found that the fabricated organosilica material can effectively protect bacterial cells against UV radiation, pH change, high salinity and high heavy metal ion concentration.
Control of the Porosity and Morphology of Ordered Mesoporous Silica by Varying Calcination Conditions
Abstract In this study, mesoporous silica (SBA-15) was prepared using pluronic P123 surfactant as the structure-directing template, HCl as catalyst and tetraethyl orthosilicate as the silica source.
Physicochemical Characterization and Drug Release Properties of Methyl-Substituted Silica Xerogels Made Using Sol–Gel Process
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Facile synthesis of amino-functional large-size mesoporous silica sphere and its application for Pb2+ removal.
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Optimization of experimental conditions for the synthesis of Si-MCM-41 molecular sieves using different methods and silica sources
Abstract The present work evaluates the effects of the silica/surfactant and solvent/co-solvent molar ratios, for synthesis under ambient conditions (using commercial tetraethyl orthosilicate
Direct Synthesis of Mesoporous Organosilica and Proof-of-Concept Applications in Lysozyme Adsorption and Supported Catalysis
The presence of methyl groups significantly enhanced the product yield for the catalyzed synthesis of a triazole derivative; this was attributed to the enhanced hydrophobic surface–reactant interactions, and the materials have a higher water adsorption capacity and an improved resistance to hydrolysis.
Mesoporous magnetic nanocomposites: a promising adsorbent for the removal of dyes from aqueous solutions
Water pollution by synthetic organic dyes is mainly regarded as environmental and ecological issues worldwide and requires feasible solutions in face of the short-term risk to human health and


Synthesis and Characterization of Methyltriethoxysilyl- Mediated Mesoporous Silicalites
A series of mesoporous silicalites was synthesized using different compositions of tetraethylorthosilicate and methyltriethoxysilane (MTES) as the silica source. Cetyltrimethylammonium bromide was
Pore ordering in mesoporous matrices induced by different directing agents
Abstract Mesoporous silica particles of MCM-41 type were synthesized by sol–gel method from tetraethyl orthosilicate in 2-methoxyethanol and deionized water mixture in base conditions at room
Physisorption data for methyl-hybrid silica gels
The porous structure of inorganic silica and methyl-ormosil gels were studied using nitrogen adsorption at 77 K. Organically, modified silica gels were produced from mixtures of tetraethoxysilane
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In this work we obtained microporous and mesoporous silica gels by sol-gel processing. Tetraethylortosilicate (TEOS) was used as precursor. Nitric acid and hydrofluoric acid were used as catalysts.
Hybrid organic - Silica nanomaterials based on novel A3B mixed substituted porphyrin
Abstract A new A3B porphyrin structure, namely: 5-(4-phenoxyphenyl)-10,15,20-tris(4-pyridyl)-porphyrin was synthetized and characterized by FT-IR, UV–vis, Fluorescence, MS, 1H NMR, TLC and HPLC.
Structural characterization of organically-modified porous silicates synthesized using CTA+ surfactant and acidic conditions
Organically-modified silicates have been synthesized from RSi(OEt) 3 (R=CH 3 , C 2 H 5 , C 8 H 17 , CH 2 =CH or C 6 H 5 ) and TEOS under acidic conditions, in the presence
Synthesis of Transparent Mesoporous and Mesostructured Thin Silica Films
A novel method for obtaining crack-free transparent periodic mesoporous thin films is described. Such films are prepared by a simple sol-gel process using surfactants as templates, with a
Organic–inorganic hybrid superhydrophobic surfaces using methyltriethoxysilane and tetraethoxysilane sol–gel derived materials in emulsion
Abstract By applying alkaline-catalyzed co-hydrolysis and copolycondensation reactions of tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) in organic siloxane modified polyacrylate emulsion
Sol-gel Synthesis of Methyl-modified Mesoporous Materials with Dual Porosity
Abstract Methyl-modified silica materials with dual mesopore size distribution have been successfully obtained by co-condensation of methyltriethoxysilane and tetraethylorthosilicate via sol-gel
Comparative studies of the physical and hydrophobic properties of TEOS based silica aerogels using different co-precursors
Abstract In the present paper, the experimental results on the physical and hydrophobic properties of tetraethoxysilane (TEOS) based silica aerogels using six different organosilane co-precursors