Journal Article

·2002

Structure - Activity Relations for the Photodegradation Reactions of Monosubstituted Anilines in TiO2 Suspensions

Nevim San YTU , Zekiye Çımar YTU

Journal of Advanced Oxidation Technologies

Abstract

Abstract The kinetics of the photocatalytic degradation reactions of nine different monosubstituted anilines have been investigated experimentally and theoretically. With the intention of finding certain indices in order to determine the degradation rates of aromatic pollutants, geometry optimizations of the anilines have been performed with the semi-empirical PM3 method. The molecular orbital calculations have been carried out by a self-consistent field SCF method using the restricted Hartree-Fock RHF formalism. The correlations between the apparent first-order rate constants and the molecular properties of the compounds have been examined. Three different quantitative structure-activity relationships, QSARs were developed expressing the logarithms of the rate constants in terms of the Brown constants σ

Keywords

Reaction rate constant Photodegradation Chemistry Molecular orbital Computational chemistry Formalism (music) Kinetics Quantitative structure–activity relationship Logarithm Physical chemistry Photochemistry Organic chemistry Molecule Photocatalysis Stereochemistry Catalysis Mathematics Physics

Subject Areas

Free Radicals and Antioxidants ·Organic Chemistry ·Physical Sciences
Chemistry and Chemical Engineering ·Environmental Chemistry ·Physical Sciences
Photochemistry and Electron Transfer Studies ·Physical and Theoretical Chemistry ·Physical Sciences

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