Search results for " pH effect"

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Tuning The Selectivity To Aldehyde Via Ph Regulation In The Photocatalytic Oxidation Of 4-Methoxybenzyl Alcohol And Vanillyl Alcohol By Tio2 Catalysts

2021

Abstract The influence of pH on the photocatalytic partial oxidation of 4-methoxybenzyl alcohol (MBA) and vanillyl alcohol (VA) to their corresponding aldehydes in aqueous suspension under UVA irradiation was investigated by using poorly crystalline home-prepared and crystalline commercial TiO2 (BDH, Merck and Degussa P25) photocatalysts. The results clearly show as tuning pH can strongly impart selectivity and activity to photocatalytic processes which are often quite unselective in aqueous suspensions. It was found that pH effect on reaction rate and product selectivity strongly depended on TiO2 crystallinity and substrate type. In the case of MBA oxidation, photoreactivity and selectivit…

Alcohol02 engineering and technology010501 environmental sciences01 natural sciencesAldehydeGreen synthesis p-Anisaldehyde pH effect Photocatalysis TiO2 VanillinCatalysisVanillyl alcoholchemistry.chemical_compoundChemical Engineering (miscellaneous)Partial oxidationWaste Management and Disposal0105 earth and related environmental scienceschemistry.chemical_classificationSettore ING-IND/24 - Principi Di Ingegneria ChimicaAqueous solutionProcess Chemistry and Technology021001 nanoscience & nanotechnologyPollutioneye diseaseschemistryPhotocatalysissense organsSettore CHIM/07 - Fondamenti Chimici Delle Tecnologie0210 nano-technologySelectivityNuclear chemistry
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