Reductive degradation of oxygenated polycyclic aromatic hydrocarbons using an activated magnesium/co-solvent system
Abbreviated Journal Title
Chemosphere
Keywords
Magnesium; Degradation; Oxygenated polycyclic aromatic hydrocarbons; Chemical reduction; PARTICULATE MATTER; IRON METAL; KINETICS; DECHLORINATION; TOXICITY; QUINONES; AEROSOLS; SORPTION; HAZARDS; KETONES; Environmental Sciences
Abstract
This study evaluates the capability of zero-valent magnesium and a protic co-solvent to promote the degradation of oxygenated polycyclic aromatic hydrocarbons compounds, specifically 9-fluorenone, 9,10-anthraquinone, 7,12-benz(a)anthraquionone, and 7H-benz(de)anthracene-7-one. At room temperature conditions, greater than 86% degradation efficiency is observed after 24 h of reaction time for a mixture containing 0.05 g of magnesium and four selected oxygenated aromatic hydrocarbons with 250 mg L-1 concentrations. It is noted that glacial acetic acid is needed as an activator for the degradation reaction to proceed. It is also presumed that the acid removes oxide and hydroxide species from the magnesium surface. With the GC-MS analysis of the reaction products, possible reductive pathways are suggested. Furthermore, this study is the first report on the degradation of these emerging contaminants and it is proposed that the magnesium-powder/protic-solvent system is a promising low-cost reagent and may allow for the future development of an economic and environmentally-friendly remediation application. (C) 2013 Elsevier Ltd. All rights reserved.
Journal Title
Chemosphere
Volume
91
Issue/Number
9
Publication Date
1-1-2013
Document Type
Article
Language
English
First Page
1273
Last Page
1280
WOS Identifier
ISSN
0045-6535
Recommended Citation
"Reductive degradation of oxygenated polycyclic aromatic hydrocarbons using an activated magnesium/co-solvent system" (2013). Faculty Bibliography 2010s. 3947.
https://stars.library.ucf.edu/facultybib2010/3947
Comments
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