A mild photochemical approach to the degradation of phenols from olive oil mill wastewater

被引：41
|
作者：
Cermola, F
DellaGreca, N
Iesce, MR
Montella, S
Pollio, A
Temussi, F
机构：
[1] Univ Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
[2] Univ Naples Federico II, Dipartimento Biol Vegetale, I-80139 Naples, Italy
来源：
CHEMOSPHERE | 2004年 / 55卷 / 07期
关键词：
cathecol; tyrosol; phenolic acids; sensitized photooxidation; rose bengal; Ankistrodesmus braunii;
D O I：
10.1016/j.chemosphere.2003.12.016
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Photooxidation of cathecol (1) is carried out in aqueous Solution at lambda > 300 nm using different sensitizers: rose bengal (RB), 9,10-dicyanoanthracene (DCA), 2,4,6-triphenylpyrylium tetrafluoroborate (Pyryl). The highest degradation is observed in the UV/RB-sensitized reaction (66% after 15 h of irradiation), mineralization and formation of dimers are the final events. This procedure has been extended to tyrosol (2), caffeic acid (3), vanillic acid (4). 4-hydroxycinnamic acid (5) and 4-hydroxybenzoic acid (6) as well as to a mixture of all phenols. A reduced toxicity of the UV/RB-irradiated solutions of cathecol and tyrosol towards alga Ankistrodesmus braunii is also verified. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1035 / 1041
页数：7
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