Sorption of non-ionic organic pollutants onto a humic acids-zeolitic tuff adduct: Thermodynamic aspects

Leone, Vincenzo; Iovino, Pasquale; Salvestrini, Stefano; Capasso, Sante

doi:10.1016/j.chemosphere.2013.08.019

Cited by 34 publications

(20 citation statements)

References 17 publications

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“…Sorption is a major process which controls the mobility and bioavailability of sulfonamide antibiotics in the environment. Previous research has revealed that minerals, especially iron oxides, might have a key role in the sorption of antibiotics in soil [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Remove mechanisms of sulfamethazine by goethite: the contributions of pH and ionic strength

Guo¹,

Yin²,

Yang

et al. 2016

Res Chem Intermed

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Sulfamethazine (SMT) as an ionic compound can enter the soil environment via the application of livestock wastes in agricultural fields and via the abuse of pharmaceuticals. Goethite as one of the most important iron oxides in soil might interact with SMT and influence its environmental behavior and bioavailability in soil. In this study, the sorption properties of SMT on goethite under different solution conditions were investigated. The sorption isotherm exhibited a significant nonlinear shape and desorption hysteresis, while the data could be fitted well by the Freundlich model with the correlation coefficient R 2 = 0.991. Sorption capacity initially increased and then decreased as pH values increased from 3 to 13, while the strongest uptake occurred in neutral conditions. The sorption increased slightly and then kept relatively constant as the ionic strength of the solution increased. The results indicated that the sorption mechanism would be altered in different solution conditions. In acidic and neutral conditions, the p-p electron donor-acceptor interactions and outer-and inner-sphere complexions might be the dominating sorption mechanisms. The sorption in alkali conditions might be dominated by electrostatic interactions between SMT and goethite. It should be noted that the heterogeneous sorption affinity of SMT on goethite under various solution conditions will influence its environmental fate.

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Section: Introductionmentioning

confidence: 99%

Remove mechanisms of sulfamethazine by goethite: the contributions of pH and ionic strength

Guo¹,

Yin²,

Yang

et al. 2016

Res Chem Intermed

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show abstract

“…It is a very versatile process that can be used for organic compounds and heavy metal capture thanks to a wide spectrum of adsorption targets [21,22,23] as well as for single or multiple contaminations [20,24]. The wide application of the adsorption process is also due to the possibility of using different kinds of adsorbents, including natural and waste materials either raw or activated [15,16,21,23].…”

Section: Introductionmentioning

confidence: 99%

A modeling analysis for the assessment of ibuprofen adsorption mechanism onto activated carbons

Iovino

Canzano

Capasso

et al. 2015

Chemical Engineering Journal

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“…K F and n are constants (Table 1). It is worth nothing that the K F values reported in literature for the sorption onto activated carbon, currently the most popular sorbent for organic compounds, and for other recently introduced sorbent materials [14,15,16,17] are markedly higher than those reported in Table 1 for PCT. For example, K F values reported for the sorption of toluene and o-xylene onto activated carbon were respectively 35.8 and 54.8 L 1/n mg 1-1/n g -1 [18]; for phenol a K F value of 54.0 L 1/n mg 1-1/n g -1 has been reported [19].…”

Section: Resultsmentioning

confidence: 56%

Sorption of organic pollutants onto zeolitic tuff

Leone¹,

Iovino²,

Coppola³

et al. 2016

Zas Mat

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Sorption of non-ionic organic pollutants onto a humic acids-zeolitic tuff adduct: Thermodynamic aspects

Cited by 34 publications

References 17 publications

Remove mechanisms of sulfamethazine by goethite: the contributions of pH and ionic strength

Remove mechanisms of sulfamethazine by goethite: the contributions of pH and ionic strength

A modeling analysis for the assessment of ibuprofen adsorption mechanism onto activated carbons

Sorption of organic pollutants onto zeolitic tuff

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