Ionic liquid-mediated bis[(3-methyldimethoxysilyl)propyl] polypropylene oxide-based polar sol–gel coatings for capillary microextraction

The hexagonal mesoporous silica (HMS) nano-particles were prepared in mixture of 1-butyl-3-methyl-imidazolium tetrafluoroborate (BMIM+BF4-) ionic liquid and water by a sol-gel method. The structure and morphology of obtained materials were characterized by X-ray powder diffraction (XRD), N2adsorption-desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS). The influence of the amount of BMIM+BF4-was investigated. It was shown that the synthesized materials have discrete and uniform spherical morphology with the size in the range of 68-177 nm (obtained from DLS measurements), and the particle size of HMS can be controlled by varying the amount of BMIM+BF4-.

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Small-angle scattering investigation of silica xerogels and sonogels prepared with ionic liquid pyridinium tetrafluoroborate

Processing and Application of Ceramics ◽

10.2298/pac1703229a ◽

2017 ◽

Vol 11 (3) ◽

pp. 229-233 ◽

Cited By ~ 2

Author(s):

László Almásy ◽

Ana-Maria Putz ◽

Adél Len ◽

Josef Plestil ◽

Cecilia Savii

Keyword(s):

Ionic Liquid ◽

Small Angle ◽

Sol Gel ◽

Molar Ratio ◽

Strong Increase ◽

Silica Xerogels ◽

X Ray Scattering ◽

Angle Scattering ◽

Gel Processing ◽

Functionalized Alkoxide

Silica matrices were prepared via acid catalysed sol-gel processing augmented with sonocatalysis. As silica precursors, a mixture of tetra-functionalized alkoxide (TMOS) and three-functionalized alkoxide methyl-trimethoxysilane (MTMS) were employed. Ionic liquid N-butyl-3-methylpyridinium tetrafluoroborate ([bmPy][BF4]), was used in various proportions, aiming to catalyse the sol-gel reactions, and to influence the mesoporous silica materials properties, serving as pore template. Small-angle neutron (SANS) and small-angle X-ray scattering (SAXS) techniques were used to explore the xerogels and sonogels microstructure evolution as a function of the IL/Si molar ratio. The results show a strong increase of the primary particle size under the influence of the ionic liquid. Ultrasonic agitation leads to further size increase by ca. 10%.

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Homogeneous phase synthesis of chitosan silica hybrid materials in ionic liquid medium and adsorption of Fe(III) from aqueous solutions

Journal of Carbohydrate Chemistry ◽

10.1080/07328303.2019.1663205 ◽

2019 ◽

Vol 38 (9) ◽

pp. 586-597 ◽

Cited By ~ 2

Author(s):

Ananda S. Amarasekara ◽

Deping Wang

Keyword(s):

Ionic Liquid ◽

Hybrid Materials ◽

Sol Gel ◽

Phase Reaction ◽

Phase Synthesis ◽

Homogeneous Phase ◽

Sol Gel Process ◽

Hydrolysis Of ◽

Silica Hybrid ◽

Ionic Liquid Medium

Two chitosan silica hybrid materials were prepared by a two-step process in 78–84% yields using the homogeneous phase reaction of 3-(triethoxysilyl)propyl isocyanate with chitosan dissolved in 1-n-butyl-3-methylimidazolium chloride ionic liquid (∼10% w/w), which was followed by NH4OH catalyzed hydrolysis of triethoxysilyl groups and then sol-gel process. These new hybrid materials were shown to adsorb up to about 95% of Fe3+ from 5 × 10−4 M aqueous solution at room temperature in 24 h.

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Thermally stable ionic liquid-based sol–gel coating for ultrasonic extraction–solid-phase microextraction–gas chromatography determination of phthalate esters in agricultural plastic films

Talanta ◽

10.1016/j.talanta.2011.12.001 ◽

2012 ◽

Vol 89 ◽

pp. 129-135 ◽

Cited By ~ 42

Author(s):

Xin Zhou ◽

Xiao Shao ◽

Jian-jun Shu ◽

Ming-ming Liu ◽

Han-lan Liu ◽

...

Keyword(s):

Gas Chromatography ◽

Ionic Liquid ◽

Solid Phase Microextraction ◽

Solid Phase ◽

Phthalate Esters ◽

Sol Gel ◽

Ultrasonic Extraction ◽

Thermally Stable ◽

Plastic Films

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Poly(ionic-liquid) from imidazoline-functionalized siloxane prepared by simple sol-gel route for efficient quasi-solid-state DSSC

Materials Research Express ◽

10.1088/2053-1591/ab1282 ◽

2019 ◽

Vol 6 (7) ◽

pp. 075507

Author(s):

Herlin Pujiarti ◽

Herman Bahar ◽

Rahmat Hidayat

Keyword(s):

Ionic Liquid ◽

Solid State ◽

Sol Gel ◽

Poly Ionic Liquid

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Preparation of Nanosized TiO2 Synthesized by Sol-Gel Pathway Using Ionic Liquid as Assistant and its Photocatalytic Activities

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.535-537.2240 ◽

2012 ◽

Vol 535-537 ◽

pp. 2240-2244

Author(s):

Wei Wei ◽

Chang Shun Yu ◽

Shao Jun Wang ◽

Qing Da An

Keyword(s):

Ionic Liquid ◽

Diffuse Reflectance ◽

Sol Gel ◽

Rutile Phase ◽

X Ray Diffraction ◽

X Ray ◽

Transmission Electron ◽

Photocatalytic Activities ◽

Average Size ◽

Nanosized Tio2

Nanosized TiO2 particles were synthesized by sol-gel method using ionic liquid as assistant. The samples were characterized by UV-vis diffuse reflectance spectra, X-ray diffraction (XRD), transmission electron microscopy (TEM). It was shown that the phase detectable was mainly rutile phase with uniform sphericity and the average size was 10nm. Along with the rise of sintering temperature, grain diameter became bigger. The photocatalytic activities of nanosized TiO2 were evaluated by the reduction yield in the presence of CO2 and water. The result showed that TiO2 catalysts has efficient photocatalytic activities, of which made with [OMIM]BF4 displayed the highest photocatalytic active in the experiment.

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