Photostability and photostabilizing effect of humic acids. (2000)

• Record Type: Journal Article
• Authors: Mekkaoui, M.; Elazzouzi, M.; Bouhaouss, A.; Ferhat, M.; Chovelon, J. M.; Meallier, P.
• Is Part Of: International journal of photoenergy. Volume 2:Number 1(2000)
• Page Start: 55
• Page End: 57
• Publication Date: 2000
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Photochimie; Photobiologie; Chimie physique et théorique; Chemistry, Physical and theoretical; Photobiology; Photochemistry; Electronic journals; Periodicals; 541.35
• DOI: 10.1155/S1110662X00000088
• Languages: English
• ISSNs: 1110-662X

Abstract

Abstract : The photolysis of Humic Acids (HA) extracted from Moroccan soil in water under simulated sunlight method has been studied. The photochemical degradation of HA in concentration (30 mg/L) has been followed by TOC (Total Organic Carbon) and E4/E6 ratio (The E4/E6 value widely used to characterize humic acids is the ratio of absorption intensities at 465 and 665 nm). HA were found photostable after 24 h of irradiation exposure and produce a screen effect on photochemical degradation of TRB (Tribenuron-methyl) and IMAZ (Imazapyr) herbicides.