Matches in SemOpenAlex for { <https://semopenalex.org/work/W130045209> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W130045209 abstract "In this study, we first look at the relation between pH and extent of dark adsorption for aqueous suspensions of linear C1 to C5 saturated aliphatic carboxylic acids, their branched analogues, and their 2-hydroxy and 2-keto derivatives, over TiO 2 Degusa P25. We demonstrate that the observed trends between the extent of dark adsorption and pH can be rationalized by an electrostatic model. As a second step, we attempt without success to demonstrate that the primary degradation products of valeric acid are the alpha-hydroxy and the alpha-keto derivatives. However, we confirm the identification of 15 degradation products. The nature of the degradation products allows us to determine that the first step in the degradation of valeric acid involves hydroxylation of the carbon backbone. Evidences for the formation of keto derivatives from hydroxylated degradation products is also presented. Third, we investigate the possible changes in the nature of the surface of the photocatalyst upon light irradiation by determining the adsorption constant for a few selected acids from (1) adsorption isotherms and (2) Kinetically. A statistically significant difference between the constants obtained by the two methods is obtained. Finally, the overall quantum yield of formic acid is determined from plots of the reciprocal of photonic efficiencies vs. the reciprocal of catalyst load. The photon flow from the light source needed for the determination of Photonic efficiencies (defined as the ratio of the initial reaction rate to the photon flow from the light source) is determined with the chemical actinometer Aberchrome 540. Using the concept of relative photonic efficiencies and the limiting photonic efficiency of formic acid, we propose quantum yields for acetic acid, propanoic acid, butanoic acid, valeric acid, and 2-methylbutanoic acid." @default.
- W130045209 created "2016-06-24" @default.
- W130045209 creator A5060979561 @default.
- W130045209 date "2003-01-01" @default.
- W130045209 modified "2023-09-24" @default.
- W130045209 title "TiO2-mediated heterogeneous photocatalysis of saturated aliphatic C1 to C5 carboxylic acids : kinetics, degradation pathway, and process efficiency" @default.
- W130045209 hasPublicationYear "2003" @default.
- W130045209 type Work @default.
- W130045209 sameAs 130045209 @default.
- W130045209 citedByCount "0" @default.
- W130045209 crossrefType "dissertation" @default.
- W130045209 hasAuthorship W130045209A5060979561 @default.
- W130045209 hasConcept C121332964 @default.
- W130045209 hasConcept C134121241 @default.
- W130045209 hasConcept C148898269 @default.
- W130045209 hasConcept C150394285 @default.
- W130045209 hasConcept C161790260 @default.
- W130045209 hasConcept C171001562 @default.
- W130045209 hasConcept C178790620 @default.
- W130045209 hasConcept C184651966 @default.
- W130045209 hasConcept C185592680 @default.
- W130045209 hasConcept C191897082 @default.
- W130045209 hasConcept C192562407 @default.
- W130045209 hasConcept C2776258393 @default.
- W130045209 hasConcept C2777379063 @default.
- W130045209 hasConcept C2779074116 @default.
- W130045209 hasConcept C2779679103 @default.
- W130045209 hasConcept C2779843069 @default.
- W130045209 hasConcept C41008148 @default.
- W130045209 hasConcept C62520636 @default.
- W130045209 hasConcept C65165184 @default.
- W130045209 hasConcept C75473681 @default.
- W130045209 hasConcept C76155785 @default.
- W130045209 hasConcept C91881484 @default.
- W130045209 hasConcept C93391505 @default.
- W130045209 hasConceptScore W130045209C121332964 @default.
- W130045209 hasConceptScore W130045209C134121241 @default.
- W130045209 hasConceptScore W130045209C148898269 @default.
- W130045209 hasConceptScore W130045209C150394285 @default.
- W130045209 hasConceptScore W130045209C161790260 @default.
- W130045209 hasConceptScore W130045209C171001562 @default.
- W130045209 hasConceptScore W130045209C178790620 @default.
- W130045209 hasConceptScore W130045209C184651966 @default.
- W130045209 hasConceptScore W130045209C185592680 @default.
- W130045209 hasConceptScore W130045209C191897082 @default.
- W130045209 hasConceptScore W130045209C192562407 @default.
- W130045209 hasConceptScore W130045209C2776258393 @default.
- W130045209 hasConceptScore W130045209C2777379063 @default.
- W130045209 hasConceptScore W130045209C2779074116 @default.
- W130045209 hasConceptScore W130045209C2779679103 @default.
- W130045209 hasConceptScore W130045209C2779843069 @default.
- W130045209 hasConceptScore W130045209C41008148 @default.
- W130045209 hasConceptScore W130045209C62520636 @default.
- W130045209 hasConceptScore W130045209C65165184 @default.
- W130045209 hasConceptScore W130045209C75473681 @default.
- W130045209 hasConceptScore W130045209C76155785 @default.
- W130045209 hasConceptScore W130045209C91881484 @default.
- W130045209 hasConceptScore W130045209C93391505 @default.
- W130045209 hasLocation W1300452091 @default.
- W130045209 hasOpenAccess W130045209 @default.
- W130045209 hasPrimaryLocation W1300452091 @default.
- W130045209 hasRelatedWork W1484159868 @default.
- W130045209 hasRelatedWork W1860464546 @default.
- W130045209 hasRelatedWork W1967877434 @default.
- W130045209 hasRelatedWork W1974875505 @default.
- W130045209 hasRelatedWork W2032293256 @default.
- W130045209 hasRelatedWork W2044571066 @default.
- W130045209 hasRelatedWork W2065243465 @default.
- W130045209 hasRelatedWork W2076130150 @default.
- W130045209 hasRelatedWork W2081131654 @default.
- W130045209 hasRelatedWork W2084310735 @default.
- W130045209 hasRelatedWork W2122393583 @default.
- W130045209 hasRelatedWork W2322830585 @default.
- W130045209 hasRelatedWork W2346561808 @default.
- W130045209 hasRelatedWork W2348542882 @default.
- W130045209 hasRelatedWork W2474328741 @default.
- W130045209 hasRelatedWork W2551100943 @default.
- W130045209 hasRelatedWork W2737990289 @default.
- W130045209 hasRelatedWork W2759699205 @default.
- W130045209 hasRelatedWork W2952196384 @default.
- W130045209 hasRelatedWork W2520799190 @default.
- W130045209 isParatext "false" @default.
- W130045209 isRetracted "false" @default.
- W130045209 magId "130045209" @default.
- W130045209 workType "dissertation" @default.