Measurement of phenols dearomatization via electrolysis: The UV-Vis solid phase extraction method

被引：11

作者：

Vargas, Ronald ^{[1
]}

Borras, Carlos ^{[1
]}

Mostany, Jorge ^{[1
]}

Scharifter, Benjamin R. ^{[1
]}

机构：

[1] Univ Simon Bolivar, Dept Quim, Caracas 1080A, Venezuela

来源：

WATER RESEARCH | 2010年 / 44卷 / 03期

关键词：

Dearomatization level; Electrochemical oxidation of phenols; Solid phase extraction; UV-Vis spectroscopy; Metal oxide anode; WASTE-WATER TREATMENT; ELECTROCHEMICAL DEGRADATION; P-METHOXYPHENOL; OXIDATION; ELECTRODES; SPECTROSCOPY; KINETICS; ANODES;

D O I：

10.1016/j.watres.2009.09.063

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dearomatization levels during electrochemical oxidation of p-methoxyphenol (PMP) and p-nitrophenol (PNP) have been determined through UV-Vis spectroscopy using solid phase extraction (UV-Vis/SPE). The results show that the method is satisfactory to determine the ratio between aromatic compounds and aliphatic acids and reaction kinetics parameters during treatment of wastewater, in agreement with results obtained from numerical deconvolution of UV-Vis spectra. Analysis of solutions obtained from electrolysis of substituted phenols on antimony-doped tin oxide (SnO2-Sb) showed that an electron acceptor substituting group favored the aromatic ring opening reaction, preventing formation of intermediate quinone during oxidation. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：911 / 917

页数：7

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