Search results for "Sol-gel synthesis"

showing 2 items of 2 documents

Enhanced Solar Light Photocatalytic Activity of Ag Doped TiO2–Ag3PO4 Composites

2020

Composites comprised of Ag3PO4 and bare TiO2 (TiO2@Ag3PO4) or silver doped TiO2 (Ag@TiO2&ndash

Materials scienceDiffuse reflectance infrared fourier transformheterojunction4–nitrophenol degradationScanning electron microscope3General Chemical Engineering42Sol-gel synthesisInfrared spectroscopyAg@TiO2–Ag3PO4 heterojunctionPOArticlelcsh:Chemistrysolar photocatalysissol–gel synthesisSpecific surface areaGeneral Materials ScienceComposite materialFourier transform infrared spectroscopyPrecipitation (chemistry)4-nitrophenol degradationAg@TiODoping4-nitrophenol degradation; Ag@TiO; 2; -Ag; 3; PO; 4; heterojunction; Sol-gel synthesis; Solar photocatalysis-Aglcsh:QD1-999Solar photocatalysisPhotocatalysisAg@TiO<sub>2</sub>–Ag<sub>3</sub>PO<sub>4</sub> heterojunctionNanomaterials
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Proton presence and motion in rhenium-oxide films and their application to liquid-crystalline cells

2007

Disordered solid phases, containing appreciable amounts of hydrogen ions, are grown at the surface of rhenium oxide crystals, because of the high reactivity of this compound with ambient moisture. To investigate such phenomena, a comparative study is performed on ground powder and thermally evaporated or sputtered films using x-ray diffraction and micro-Raman spectroscopy. Two types of solid phases were found in the films: HxReO3 distorted perovskite structures, based on corner-sharing ReO6 octahedra as in the bulk crystals, and ordered HReO4 crystalline structures, based on tetrahedral perrhenate ions. The complex impedance measurements on ReO3 films support the hypothesis of mobile hydrog…

PerrhenateMaterials scienceSOL-GEL SYNTHESISHydrogenchemistry.chemical_elementGeneral ChemistryPARAMETERConductivityCondensed Matter PhysicsTUNGSTEN TRIOXIDEchemistry.chemical_compoundCrystallographychemistryOctahedronLiquid crystalABSORPTIONREO3General Materials ScienceReactivity (chemistry)SpectroscopyPerovskite (structure)
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