SBA-15 hybrid mesoporous silica
Encapsulation of compounds biphenyls into SBA-15: synthesis of composites for application
... New hybrid mesoporous materials, BVA-SBA and BEG-SBA, have been prepared via microwave-assisted ...of SBA-15 can be maintained after the inclusion of the BVA and BEG host ...of ...
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Evaluation of bi-functionalized mesoporous silicas as reversed phase/cation-exchange mixed-mode sorbents for multi-residue solid phase extraction of veterinary drug residues in meat samples
... resulting hybrid materials were successfully applied and evaluated as SPE sorbents for the simultaneous extraction of 26 veterinary drug residues (7 β-blockers, 9 β-agonists, 9 NSAIDs and 1 mycotoxin) in meat ...
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One pot synthesized functionalized mesoporous silica as a reversed phase sorbent for solid phase extraction of endocrine disrupting compounds in milks
... achieve hybrid mesoporous silicas: (a) the post-synthesis (PS), or “grafting”, method and (b) the co-condensation (CO), or “one- pot”, method ...prepared SBA-15, through silylation with ...
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Polystyrene modified hybrid materials based on ordered mesoporous silica
... broader H-1-type hysteresis loop with the increase of the organosilane precursor, leading to wider pore size distributions centred at reduced mean pore sizes. XRD patterns illustrated in Figure 1a evidenced the typical ...
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Influence of synthesis conditions on mercury adsorption capacity of propylthiol functionalized SBA-15 obtained by Co-condensation
... the silica structure through C Si covalent bonding to form a monolayer of functional ...These hybrid organic- inorganic materials have found a great variety of applications in adsorption and catalysis ...
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Synthesis and encapsulation of bis-eugenol in a mesoporous solid material: Enhancement of the antioxidant activity of a natural compound from Clove Oil.
... is mesoporous silica, such as SBA- 15. This silica is a suitable inorganic support due to its uniform wide channels that can immobilize organic ...of SBA can be used to provide ...
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Catalytic cracking of HDPE over hybrid zeolitic-mesoporous materials
... curves of Figure 4.B. Moreover, clear differences can be observed in regards to this temperature among the catalysts. Although all of them present similar aluminum content (Si/Al = 30), the HZM(6) sample exhibit a higher ...
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Hybrid silica materials derived from proline sulfonamides, imidazolium salts and (NHC)AuX complexes as supported catalysts
... Organic-inorganic hybrid materials can be roughly defined as molecular or nano- composites with organic components intimately mixed with an inorganic skeleton (metal oxides and metal-oxo polymers) at the range ...
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Secuestradores mesoporosos de paraquat a partir de SBA 15 y arcillas
... de SBA-15 e hidrotalcita, se preparó in situ mediante el proceso de coprecipitación de tal manera que al final de la síntesis se obtuvo una composición nominal de 25 % en peso de hidrotalcita (sin calcinar) ...
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Feedstock recycling of agriculture plastic film wastes by catalytic cracking
... used. Mesoporous solids (Al-MCM-41 and Al-SBA-15), that had shown remarkable performance in the cracking of the raw low-density polyethylene (LDPE), were practically inactive with the plastic film ...
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Direct synthesis of mesoporous M-SBA-15 (M = Al, Fe, B, Cr) and application to 1-hexene oligomerization
... Figure 9 illustrates the results obtained in the oligomerization of 1-hexene at 125ºC over some selected catalysts: Al-SBA-15 (2), Fe-SBA-15, B-SBA-15-sg (1) and ...
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Role of the support on the activity of Silica-supported TIO2 photocatalysts: Structure of the TiO2/SBA-15 photocatalysts
... In addition to some other important properties, it is desirable for a support to be chemically inert, to present a high specific surface area and to be transparent to the UV radiation. Probably this is the reason why ...
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Nanocomposite of crystalline Fe2O3 and CuO particles and mesostructured SBA-15 silica as an active catalyst for wet peroxide oxidation processes
... Copper-containing SBA-15 material was prepared following the same synthesis route, but using CuCl 2 ·2H 2 O as copper precursor, and it was denoted as ...
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A characterization on hybrid lead halide perovskite solar cells with Ti02 mesoporous scaffold
... The current density-voltage characterization constitutes a fundamental tool for understanding the solar cells operation; and its performance under standard illumination conditions (air mass (AM) 1.5, 100 mW cm −2 ...
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Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles
... functionalized SBA-15 particles at rather low ...mesostructured silica fillers on the membrane morphology and performance of doped PES ...porous silica particles such as the porous ordering, ...
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Electrospun Antimicrobial Films of Poly(3 hydroxybutyrate co 3 hydroxyvalerate) Containing Eugenol Essential Oil Encapsulated in Mesoporous Silica Nanoparticles
... Table 5 gathers the WVP and LP values of the electrospun PHBV/MCM-41 with eugenol films. It can be observed that the incorporation of low contents of MCM-41 with eugenol, that is, 2.5 and 5 wt.-%, induced an increase in ...
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Evaluation of mesoporous imprinted silicas as MSPD selective sorbents of ketoprofen in powder milk
... Some mesoporous silicas had been used as MSPD sorbents in food sample ...using SBA-15 functionalized with C18 groups as sorbent for the simultaneous determination of five steroids in ...
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One-pot synthesized functionalized mesoporous silica as a reversed-phase sorbent for solid-phase extraction of endocrine disrupting compounds in milks
... Sierra, One-pot synthesized functionalized mesoporous silica as a reversed- phase sorbent for solid-phase extraction of endocrine disrupting compounds in milks, Journal of Chromatography[r] ...
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Direct synthesis of organically modified Ti-SBA-15 materials
... the loading of the methylsilane functionality (Table 1). This reduction means the number of pores per unit of volume increases when higher methylsilane loadings are employed. In other words, the width of the micelles of ...
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Antioxidant activity of natural compounds supported on mesoporous Silica
... Antioxidant activity of materials was determined using phosphomolybdenum method (Alam & Bristi, 2013) and compared with BHT antioxidant and free active molecules. The samples were dissolved in a mix DMSO-ethanol ...
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