Title

Reductive Degradation Of Oxygenated Polycyclic Aromatic Hydrocarbons Using An Activated Magnesium/Co-Solvent System

Keywords

Chemical reduction; Degradation; Magnesium; Oxygenated polycyclic aromatic hydrocarbons

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 24h of reaction time for a mixture containing 0.05g of magnesium and four selected oxygenated aromatic hydrocarbons with 250mgL-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. © 2013 Elsevier Ltd.

Publication Date

1-1-2013

Publication Title

Chemosphere

Volume

91

Issue

9

Number of Pages

1273-1280

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.chemosphere.2013.02.031

Socpus ID

84876431832 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84876431832

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