Humic Substances - Excited States, Quenching by Metal Ions, and Photosensitized Degradation of Chlorophenols-Reference-Cited by-同舟云学术

Humic Substances - Excited States, Quenching by Metal Ions, and Photosensitized Degradation of Chlorophenols

Published:1997 Issue:8 Volume:62 Page:1159-1168
ISSN:0010-0765
Container-title:Collection of Czechoslovak Chemical Communications
language:en
Short-container-title:Collect. Czech. Chem. Commun.

Author:

Lang Kamil,Wagnerová Dana M.,Klementová Šárka,Kubát Pavel

Abstract

Alteration of photochemical properties of humic substances (HS) by the addition of metals abundant in natural waters has been investigated. Excited HS states have been characterized by fluorescence spectra and by laser kinetic spectroscopy. The effect of Cu2+, Fe2+, and Mn2+ has been explained in terms of static quenching of the HS excited states. In agreement with this, the metal ions were found to inhibit HS sensitized photooxidative degradation of chlorophenols.

Publisher

Institute of Organic Chemistry & Biochemistry

Subject

General Chemistry

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