science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: diuron					Other Names: DCMU; urea, 3-(3,4-dichlorophenyl)-1,1-dimethyl-

Formula: C9H10Cl2N2O					CAS-No.: 330-54-1

Study: phototransformation, photolysis, quantum yields

                
Authors: K. Djebbar, T. Sehili, P. Mazellier, J. De Laat

Title: Phototransformation of diuron in aqueous solution by UV irradiation in the absence and in the presence of H2O2

Journal/Source: Environmental Technology, 24 (4), 479 - 489, (2003); DOI: 10.1080/09593330309385583


Data: 

Energy/Wavelength range: 253.7 nm

Resolution: 

Temperature: 293 K

Temperature dependence: no

Pressure/Concentration:

Phase: aqueous solution

pH:


Comments: In the absence of H2O2, the value of the quantum yield of photolysis of diuron at 253.7 nm was found to be equal 
to be 0.0125 ± 0.0005 (using a molar absorption coefficient of 16500 ± 500 M-1 cm-1 at 253.7 nm) and insensitive to pH in the range 2-8.5.

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