Lanthanide–based luminescent hybrid silica materials prepared by sol-gel methodologies: a review

In situlinear rheology provides insights on the complex formation mechanism of hybrid silica materials through sol–gel process of silica and gelification of alginate.

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Nanostructured Glasses Based on Hybrid Silica Materials Incorporating a New Asymmetrical Phenyl-Substituted Porphyrin

The Open Chemical and Biomedical Methods Journal ◽

10.2174/1875038900902030099 ◽

2009 ◽

Vol 2 (3) ◽

pp. 99-106 ◽

Cited By ~ 5

Author(s):

Eugenia Fagadar-Cosma ◽

Corina Enache ◽

Dana Vlascici ◽

Gheorghe Fagadar-Cosma ◽

Hartmut Stadler ◽

...

Keyword(s):

Hybrid Silica ◽

Silica Materials

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Resistance to Growth of Molds for Wood Modified with Hydrophobic Hybrid Silica Gel Containing Copper Amine Complexes

Materials ◽

10.3390/ma14030577 ◽

2021 ◽

Vol 14 (3) ◽

pp. 577

Author(s):

Shaokun Hao ◽

Chuanshuang Hu ◽

Xiuyi Lin ◽

Jin Gu ◽

Hong Yun ◽

...

Keyword(s):

Silica Gel ◽

High Efficiency ◽

Copper Chloride ◽

Sol Gel ◽

Untreated Wood ◽

Populus Tomentosa ◽

Amine Complexes ◽

Hybrid Silica ◽

Sol Gel Process ◽

Copper Amine

Complexation copper with amine provides an effective strategy for fixation copper in wood, while hydrophobic modification improves the dimensional stability of wood. Thus, a combination of complexation and hydrophobization is expected to enhance the efficiency of copper-based biocides. In this study, hydrophobic hybrid silica gel containing copper amine complexes (MACu) was prepared through an in situ sol-gel process in wood using methyltriethoxysilane (MTES), 3-amino-propyltriethoxysilane (APTES), and copper chloride. The resistance to growth of molds for MACu modified wood (Populus tomentosa) was measured according to ASTM D3273-16. A leaching resistance test was carried out in accordance with AWPA E11-16. The results showed that only Aspergillus niger covered the surface of untreated wood blocks and no mold grew on the MACu surface even after the leaching test. MACu xerogel and MACu wood were further characterized by SEM-EDS, FTIR, and XPS. A possible schematic diagram of the reaction mechanism was proposed to explain the high-efficiency anti-mold performance of MACu wood.

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Organic–inorganic hybrid silica materials containing imidazolium and dihydroimidazolium salts as recyclable organocatalysts for Knoevenagel condensations

Green Chemistry ◽

10.1039/b916767f ◽

2009 ◽

Vol 11 (11) ◽

pp. 1815 ◽

Cited By ~ 51

Author(s):

Montserrat Trilla ◽

Roser Pleixats ◽

Michel Wong Chi Man ◽

Catherine Bied

Keyword(s):

Inorganic Hybrid ◽

Hybrid Silica ◽

Silica Materials

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In Situ ATR-FT-IR Kinetic Studies of Molecular Transport and Surface Binding in Thin Sol−Gel Films: Reactions of Chlorosilane Reagents in Porous Silica Materials

Analytical Chemistry ◽

10.1021/ac000947j ◽

2001 ◽

Vol 73 (3) ◽

pp. 411-423 ◽

Cited By ~ 28

Author(s):

Dion Rivera ◽

Joel M. Harris

Keyword(s):

Sol Gel ◽

Porous Silica ◽

Molecular Transport ◽

Kinetic Studies ◽

Surface Binding ◽

Silica Materials ◽

Ft Ir ◽

Sol Gel Films

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Silica materials with wall-embedded nitroxides provide efficient polarization matrices for dynamic nuclear polarization NMR

Chemical Communications ◽

10.1039/c6cc01809b ◽

2016 ◽

Vol 52 (32) ◽

pp. 5531-5533 ◽

Cited By ~ 8

Author(s):

Eric Besson ◽

Fabio Ziarelli ◽

Emily Bloch ◽

Guillaume Gerbaud ◽

Séverine Queyroy ◽

...

Keyword(s):

Dynamic Nuclear Polarization ◽

Solid State Nmr ◽

High Field ◽

Nuclear Polarization ◽

Magic Angle Spinning ◽

Magic Angle ◽

Hybrid Silica ◽

Silica Materials ◽

Field Dynamic ◽

Angle Spinning

Hybrid silica materials with wall-embedded nitroxides efficiently polarize impregnated substrates in high-field dynamic nuclear polarization magic-angle spinning solid-state NMR experiments.

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Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings

Applied Sciences ◽

10.3390/app112211044 ◽

2021 ◽

Vol 11 (22) ◽

pp. 11044

Author(s):

Violeta Purcar ◽

Valentin Rădițoiu ◽

Alina Rădițoiu ◽

Florentina Monica Raduly ◽

Georgiana Cornelia Ispas ◽

...

Keyword(s):

Polyvinyl Chloride ◽

Sol Gel ◽

Contact Angles ◽

Hybrid Coatings ◽

Water Contact ◽

Silica Coatings ◽

Transmission Electron ◽

Vis Spectroscopy ◽

Silica Materials ◽

Window Blinds

In this research, we report a simple and inexpensive way to prepare transparent and hydrophobic hybrid coatings through deposition of different silica materials on polyvinyl chloride (PVC) substrates. The silica materials were prepared using an acid-catalyzed sol–gel method at room temperature (25 ± 2 °C), using alkoxysilanes: tetraethoxysilane (TEOS), as the silica source, and ethoxydimethylvinylsilane (DMVES), triethoxyoctylsilane (OTES), and trimethoxyhexadecylsilane (HDTMES), as modifier agents. The obtained materials were characterized (either as powders or as thin films) by Fourier-transform infrared spectroscopy (FTIR), UV/Vis spectroscopy, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and water contact-angle measurements. UV/Vis spectra showed that the PVC substrate coated with the silica material containing TEOS/DMVES/OTES had a transmittance of about 90% in the wavelength range of 650–780 nm. The water contact angles increased from 83° for uncoated PVC substrate to ~94° for PVC substrates coated with the sol–gel silica materials. These PVC films with hybrid silica coatings can be used as the materials for outdoor applications, such as energy-generating solar panel window blinds or PVC clear Windmaster outdoor blinds.

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