Study on the Photoreduction of Fe(Ⅲ)-2-(5-Bromo-2-Pyridylazo)-5-Diethylaminophenol Complex

doi:10.7517/j.issn.1674-0475.2006.04.270

Abstract

Abstract: The effects of solution acidity,light intensity, the presence of specific organic acids and their concentration on the photoreduction of Fe(Ⅲ)-5-Br-PADAP complex were studied.Preliminary investigation was carried out to probe into the reaction mechanism.It was found that Fe(Ⅲ)-5-Br-PADAP complex underwent photoreduction fast at pH 5.5 in HAc-NaAc buffer solution;intensifying the illumination would speed up the reaction;the presence of certain organic acids such as formic acid could promote the photoreduction while oxalic acid and malonic acid prohibited the reaction markedly;increasing the concentration of organic acids that promote the reaction could accelerate the photoreduction.

Key words: iron(Ⅲ), 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol, photoreduction

CLC Number:

WU Xiao-hua, MIAO Ji-gen, CHEN Jian-rong. Study on the Photoreduction of Fe(Ⅲ)-2-(5-Bromo-2-Pyridylazo)-5-Diethylaminophenol Complex[J]. Imaging Science and Photochemistry, 2006, 24(4): 270-275.

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