Efficient dechlorination of carbon tetrachloride by hydrophobic green rust intercalated with dodecanoate anions

Environmental Science & Technology
Karina B Ayala-LuisHans Christian B Hansen

Abstract

The reductive dechlorination of carbon tetrachloride (CT) by Fe(II)-Fe(III) hydroxide (green rust) intercalated with dodecanoate, Fe(II)(4)Fe(III)(2)(OH)(12)(C(12)H(23)O(2))(2) · yH(2)O (designated GR(C12)), at pH ~ 8 and at room temperature was investigated. CT at concentration levels similar to those found in heavily contaminated groundwater close to polluted industrial sites (14-988 μM) was reduced mainly to the fully dechlorinated products carbon monoxide (CO, yields >54%) and formic acid (HCOOH, yields >6%). Minor formation of chloroform (CF), the only chlorinated degradation product, was also detected (yields <6.3%). Reactions carried out with excess GR followed pseudo first-order kinetics with respect to CT with rate constants ranging from 6.5 × 10(-2) to 0.47 h(-1). These rate constants are comparable to those measured for CT dechlorinations mediated by zerovalent iron. Reduction of the highest concentration of CT (1.4 mM) proceeds until 56% of the Fe(II) sites of GR(C12) was consumed. This reaction ceased after 10 h due to surface passivation of GR(C12).

References

Jan 11, 2002·Environmental Science & Technology·D S Alessi, Z Li
May 8, 2002·Environmental Science & Technology·Klaus PecherRene P Schwarzenbach
Jan 11, 2003·Environmental Science & Technology·Woojin Lee, Bill Batchelor
Mar 15, 2003·Environmental Science & Technology·Edward J O'LoughlinKenneth M Kemner
Jul 24, 2003·Environmental Science & Technology·Edward J O'LoughlinDavid R Burris
Mar 5, 2004·Environmental Science & Technology·Michael L McCormick, Peter Adriaens
Apr 29, 2004·Environmental Science & Technology·Martin ElsnerRené P Schwarzenbach
May 18, 2004·Journal of Colloid and Interface Science·Hongting Zhao, Kathryn L Nagy
Oct 19, 2004·Environmental Science & Technology·Karlin M Danielsen, Kim F Hayes
Jan 27, 2005·Environmental Science & Technology·R A Maithreepala, Ruey-an Doong
Mar 11, 2005·Environmental Science & Technology·Karlin M DanielsenKim F Hayes
Dec 6, 2005·Environmental Science & Technology·David M Cwiertny, A Lynn Roberts
Sep 8, 2007·Environmental Science & Technology·Peter J VikeslandK Erik Makus
Jul 2, 2008·Environmental Science & Technology·Philip Larese-Casanova, Michelle M Scherer
Aug 12, 2008·The Science of the Total Environment·Andrew B CundyRaymond L D Whitby
Aug 15, 2008·Chemosphere·Li-Hua ChenHsing-Lung Lien
Aug 1, 1987·Environmental Science & Technology·T M VogelP L McCarty
Mar 23, 2011·Environmental Science & Technology·Anke BuchholzStefan B Haderlein
Apr 19, 2011·Journal of Hazardous Materials·Jenny M BearcockNicholas J G Pearce
Nov 1, 1994·Environmental Science & Technology·L J Matheson, P G Tratnyek

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Citations

Dec 31, 2015·Journal of Hazardous Materials·Li-Zhi HuangMorten Jannik Bjerrum
Sep 12, 2014·Journal of Hazardous Materials·Yiming SuYalei Zhang
Mar 1, 2017·Environmental Science & Technology·Weizhao YinHans Christian B Hansen
Nov 30, 2016·Journal of Colloid and Interface Science·Weizhao YinHans Christian B Hansen
Dec 12, 2020·Journal of Hazardous Materials·Jing AiHans Christian B Hansen
Jun 19, 2021·Chemical Reviews·Jianzhi HuangHuichun Zhang

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