Character of Humic Substances as a Predictor for Goethite Nanoparticle Reactivity and Aggregation

Environmental Science & Technology
Amanda M VindedahlR Lee Penn

Abstract

Natural organic matter (NOM) is ubiquitous in surface water and groundwater and interacts strongly with mineral surfaces. The details of these interactions, as well as their impacts on mineral surface reactivity, are not well understood. In this work, both the reactivity and aggregation of goethite (α-FeOOH) nanoparticles were quantified in the presence of well-characterized humic substances. Results from monitoring the kinetics of reductive degradation of 4-chloronitrobenzene (4-ClNB) by Fe(II) adsorbed onto the goethite nanoparticles with and without added humic substances demonstrates that, in all cases, humic substances suppressed Fe(II)-goethite reactivity. The ranking of the standards from the least to most inhibitive was Pahokee Peat humic acid, Elliot Soil humic acid, Suwannee River humic acid, Suwannee River NOM, Suwannee River fulvic acid I, Suwannee River fulvic acid II, and Pahokee Peat fulvic acid. Correlations between eight characteristics (molecular weight, carboxyl concentration, and carbon, oxygen, nitrogen, aliphatic, heteroaliphatic, and aromatic content) and 4-ClNB degradation rate constants were observed. Faster kinetic rates of reductive degradation were observed with increased molecular weight and nitroge...Continue Reading

References

May 8, 2002·Environmental Science & Technology·Klaus PecherRene P Schwarzenbach
Jan 14, 2003·Environmental Science & Technology·Timothy J Strathmann, Alan T Stone
Jan 25, 2003·Environmental Science & Technology·Jerry A Leenheer, Jean-Philippe Croué
Feb 19, 2004·Environmental Science & Technology·Martin ElsnerStefan B Haderlein
Apr 29, 2004·Environmental Science & Technology·Martin ElsnerRené P Schwarzenbach
Sep 24, 2004·Environmental Science & Technology·Theodore P KlupinskiSamuel J Traina
Jan 27, 2005·Environmental Science & Technology·R A Maithreepala, Ruey-an Doong
Mar 11, 2005·Environmental Science & Technology·Karlin M DanielsenKim F Hayes
Mar 19, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Takumi SaitoSatoru Tanakat
Aug 30, 2005·Environmental Science & Technology·Byong-Hun JeonEric E Roden
Sep 6, 2005·Journal of Colloid and Interface Science·E Illés, E Tombácz
Nov 22, 2005·Environmental Science & Technology·Chan Lan ChunWilliam A Arnold
Feb 16, 2006·Environmental Science & Technology·T L Byrd, J Y Walz
Jun 6, 2006·Environmental Science & Technology·Chan Lan ChunWilliam A Arnold
Jan 30, 2007·Environmental Science & Technology·Liping WengTjisse Hiemstra
Apr 3, 2007·Environmental Science & Technology·Chan Lan ChunWilliam A Arnold
Dec 1, 2007·Journal of Environmental Monitoring : JEM·Nicholas S WiggintonMichael F Hochella
Sep 20, 2008·Environmental Science & Technology·Dalizza ColónJames L Anderson
Dec 17, 2008·Environmental Toxicology and Chemistry·Mohammed BaaloushaJamie R Lead
Apr 9, 2009·Environmental Science & Technology·Rute F DomingosKevin I Wilkinson
Jun 9, 2009·Journal of Colloid and Interface Science·Marek Kosmulski
Dec 31, 2009·Environmental Science & Technology·Katja AmstaetterAndreas Kappler
Feb 16, 2010·Environmental Science & Technology·Arturo A KellerZhaoxia Ji
Aug 7, 2010·Environmental Science & Technology·Adamo R PetosaNathalie Tufenkji
Feb 3, 2011·Journal of Environmental Quality·Ernest M HotzeGregory V Lowry
Mar 17, 2011·Environmental Science & Technology·George R AikenJoseph N Ryan
Mar 23, 2011·Environmental Science & Technology·Anke BuchholzStefan B Haderlein
Oct 8, 2011·Nature·Michael W I SchmidtSusan E Trumbore
Jan 1, 1994·Environmental Science & Technology·B GuJ F McCarthy
Sep 12, 2012·Analytical and Bioanalytical Chemistry·Antonio Nebbioso, Alessandro Piccolo
Aug 2, 2014·Environmental Science & Technology·Allan Philippe, Gabriele E Schaumann

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Citations

Sep 16, 2016·Environmental Science & Technology·Jennifer H StrehlauWilliam A Arnold
Sep 20, 2018·Environmental Science. Processes & Impacts·Stacey Hales-Messenger, Andrew Swindle
Jun 19, 2021·Chemical Reviews·Jianzhi HuangHuichun Zhang
Jul 17, 2021·The Science of the Total Environment·Thunyalux RatpukdiEakalak Khan
Dec 15, 2017·Environmental Science & Technology·James M BarazeshDavid L Sedlak
Nov 11, 2020·Environmental Science & Technology·Ya-Tong ZhaoAi-Jun Miao
Sep 8, 2018·Environmental Science & Technology·Zhe ZhouMichelle M Scherer
Jan 5, 2019·Environmental Science & Technology·W ChengJ-F Boily
Jun 20, 2020·Environmental Science & Technology·Dong MaMengqiang Zhu
Jul 16, 2020·Environmental Science & Technology·Gongde ChenChristopher A Gorski

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