2013
DOI: 10.1016/j.cej.2012.12.026
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Effects of co-existing ions and natural organic matter on removal of chromium (VI) from aqueous solution by nanoscale zero valent iron (nZVI)-Fe3O4 nanocomposites

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Cited by 203 publications
(49 citation statements)
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“…These materials include anions and cations and organic matters [51][52][53][54][55]. Anions such as sulfate, nitrate, carbonate, chloride, bicarbonate, and phosphate influence adsorption by adjustment of the electrostatic charge at the solid surface because of the same negative ions [11,[56][57][58][59][60][61].…”
Section: Adsorption Methods For Arsenic and Fluoride Removalmentioning
confidence: 99%
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“…These materials include anions and cations and organic matters [51][52][53][54][55]. Anions such as sulfate, nitrate, carbonate, chloride, bicarbonate, and phosphate influence adsorption by adjustment of the electrostatic charge at the solid surface because of the same negative ions [11,[56][57][58][59][60][61].…”
Section: Adsorption Methods For Arsenic and Fluoride Removalmentioning
confidence: 99%
“…Fulvic acids (FA) and humic acids (HA) are hydrophobic in nature, and they represent almost 60% of the dissolved organic in aquatic systems [56]. Humic substances interfere with anionic adsorption through stable metal complex formations [23,54,56]. Due to the importance of these parameters in adsorption process, we evaluated the adsorptions isotherms, coexisting substances, the effects of pH, and ionic strength and their effects on arsenite (As(III)), arsenate (As(V)), and Fluoride (F − ) removal on different adsorbents and aimed to find the relationship between them.…”
Section: Adsorption Methods For Arsenic and Fluoride Removalmentioning
confidence: 99%
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“…The agglomeration may lead to increase in particles size and decreased surface area resulting in slower removal performance. Therefore, providing a surface coating of a thin layer of Fe 3 O 4 [22], could alleviate this problem, thereby enhancing the reactivity of ZVINPs. The removal of PO 4 3-from aqueous solution by ZVINPs takes place by simultaneous adsorption and chemical precipitation [23].…”
Section: Removal Mechanismmentioning
confidence: 99%
“…However, nZVI tends to agglomerate into large structures due to its high surface energy, which makes it difficult to be separated and recovered after use [14]. Also, the high reactivity of nZVI can become a double-edged sword preventing nZVI from reaching the contamination zone or raising competition for surface active sites between contaminants and compounds other than CoC (eg natural organic matter) [15]. To maintain the stability and reactivity of nZVI, numerous researchers focused on the optimal synthesis conditions of nZVI or its surface modifications.…”
Section: Introductionmentioning
confidence: 99%