Results 11 to 20 of about 12,898 (223)

Self-sorted photoconductive xerogels [PDF]

open access: yesChemical Science, 2016
Self-sorting between n-type and p-type gelators results in effective visible-active photoconductive xerogels.
Draper, Emily R.   +5 more
openaire   +5 more sources

Superfast Synthesis of Carbon Xerogels

open access: yesACS Omega, 2023
Carbon xerogels (CXs) provide unique opportunities for numerous applications in the areas of adsorption, separation, insulation, catalysis, and electrochemistry, but their use is hampered by time- and energy-intensive synthesis protocols. Synthesis protocols may require several days or more. Here, we report the synthesis of CXs requiring only 5 h using
Abdurrahman Bilican   +4 more
openaire   +4 more sources

Low temperature superparamagnetic nanocomposites obtained by Fe(acac)3-SiO2-PVA hybrid xerogel thermolysis [PDF]

open access: yesProcessing and Application of Ceramics, 2016
Fe(acac)3/silica/PVA hybrid xerogel nanocomposite was obtained by one pot acid catalysed sol-gel synthesis using the homogeneous mixture of iron(III) acetylacetonate (Fe(acac)3), tetraethylorthosilicate (TEOS), and polyvinyl alcohol (PVA).
Catalin Ianasi   +7 more
doaj   +1 more source

Preparation and characterization of novel bi-functionalized xerogel for removal of methylene blue and lead ions from aqueous solution in batch and fixed-bed modes: RSM optimization, kinetic and equilibrium studies

open access: yesJournal of Saudi Chemical Society, 2020
A new bi-functionalized xerogel is fabricated and then was identified by 29Si CP MAS NMR, SEM, FTIR, and nitrogen adsorption–desorption approaches. As-prepared xerogel efficiency for simultaneous uptake of methylene blue (MB) and Pb2+ ions from aqueous ...
Yasser Hannachi, Afifa Hafidh
doaj   +1 more source

Xerogel p-anisidinapropilsílica: estudo da estabilidade térmica e da resistência à lixiviação com solventes p-anisidinepropylsilica xerogel: thermal stability and resistance to leaching by solvents

open access: yesQuímica Nova, 2002
The xerogel p-anisidinepropylsilica was obtained. This solid presents some residual paraffin and also a small fraction of high organofunctionalized material that was leached in polar solvent.
Leonardo Franken   +4 more
doaj   +1 more source

Controllable transport mean free path of light in xerogel matrixes embedded with polystyrene spheres [PDF]

open access: yes, 2008
Xerogel matrices, made by sol-gel techniques, are embedded with polystyrene spheres to promote multiple scattering of light. Varying the concentration of the spheres inside the matrix allows one to adjust the transport mean free path of light inside the ...
Boris P. Bret   +36 more
core   +2 more sources

Selective and highly efficient dye scavenging by a pH-responsive molecular hydrogelator [PDF]

open access: yes, 2008
A structurally simple low molecular weight hydrogelator derived from isophthalic acid forms robust pH-responsive hydrogels capable of highly efficient and selective dye ...
Cardin, Christine J   +6 more
core   +3 more sources

One-pot removal of pharmaceuticals and toxic heavy metals from water using xerogel-immobilized quartz/banana peels-activated carbon

open access: yesGreen Chemistry Letters and Reviews, 2023
Here, we report the efficient one-pot removal of heavy metal ions and pharmaceuticals using xerogel, activated carbon and gravel. The simplest xerogel from tetramethyl orthosilicate showed ∼ twice the adsorption capacity of activated carbon derived from ...
Ibrahim Karume   +5 more
doaj   +1 more source

Converting water adsorption and capillary condensation in useable forces with simple porous inorganic thin films [PDF]

open access: yes, 2016
This work reports an innovative humidity driven actuation concept based on Bangham effect using simple nanoporous sol-gel silica thin films as humidity responsive materials.
Boudot, Mickael   +2 more
core   +3 more sources

Nanoporous Xerogel for Adsorption of Pb2+ and Cd2+ [PDF]

open access: yesJournal of Nanostructures, 2015
Classical xerogels are robust, inexpensive and nontoxic materials with low-ordered nanoporous structures. In water streams where the pH is higher than the Point of Zero Charge, the surface of classical xerogels such as tetraethoxy orthosilan (TEOS ...
F. B. Sarand   +3 more
doaj   +1 more source

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