Search results for "ZnO photocatalyst"

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Photoassisted Oxidation of the Recalcitrant Cyanuric Acid Substrate in Aqueous ZnO Suspensions

2007

The photoassisted oxidative transformation of the highly recalcitrant cyanuric acid was examined in the liquid−solid regime at pH 3 and natural pH 7.5 under UV irradiation in oxygen- and ozone-saturated ZnO suspensions using ZnO as a photomediator. Loss of cyanuric acid was assayed by HPLC UV absorption spectroscopy, whereas intermediates and final products were determined by HPLC ion chromatography (IC), by MS techniques using an electrospray ionization mass spectrometer operated in the negative-ion mode, and by FT-IR spectroscopy. Final reaction products were CO2 gas and NO3- ions. The measure of nitrate in solution quantified the degree of mineralization of the substrate; its concentrati…

Aqueous solutionAbsorption spectroscopyElectrospray ionizationInorganic chemistryIon chromatographySubstrate (chemistry)Mass spectrometrySurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundGeneral EnergyAdsorptionchemistryZnO photocatalyst cyanuric acidPhysical and Theoretical ChemistryCyanuric acidThe Journal of Physical Chemistry C
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