Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media

Martín, Julia; Orta, María del Mar; Medina-Carrasco, Santiago; Santos, Juan Luís; Aparicio, Irene; Alonso, Esteban

doi:10.1016/j.clay.2019.02.002

Cited by 66 publications

(22 citation statements)

References 43 publications

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“…Analysis of the experimental data suggest that adsorption of ibuprofen can be realized in a wide range of pH, what is determined mostly by the type of the sorption material used. More acidic environment is the most suitable when adsorbing ibuprofen onto activated carbons (Maestre et al 2007;Guedidi et al 2017) as neutral or basic are better one to adsorb it onto natural clays (Martín et al 2019;Rafati et al 2018;Khazri et al 2017). Comparison of maximum sorption capacities of different type sorbents confirmed that the most important is appropriate selection of the material.…”

Section: Kinetic Studymentioning

confidence: 97%

The role of novel lignosulfonate-based sorbent in a sorption mechanism of active pharmaceutical ingredient: batch adsorption tests and interaction study

Ciesielczyk

Żółtowska-Aksamitowska

Jankowska

et al. 2019

Adsorption

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The aim of presented research concerned synthesis of a novel lignosulfonate-based sorbent and its application in batch adsorption tests related to removal of an active pharmaceutical ingredient (ibuprofen). Obtained hybrid material was thoroughly characterized with respect to morphology, porosity (BET method and BJH algorithm), electrokinetic stability, and characteristic functional groups. As a result of the proposed synthesis route, an active MgO-SiO 2 /lignosulfonate hybrid was obtained as confirmed by significant amount of functional groups present in its structure and relative good parameters of the porous structure (A BET = 71 m 2 /g, V p = 0.2 mL/g and S p = 11.8 nm). Next stage concerned typical batch adsorption tests with respect to active pharmaceutical ingredient (API)-ibuprofen. It was proved that efficiency of removal of ibuprofen was mostly determined by its structure as well as variable process parameters. Affinity of sorption material towards model organic impurity was established based on equilibrium and kinetics study of adsorption process performed. A key element of the investigations was an interaction and mechanism study resulted from interpretation how the parameters of the adsorption affect the nature of the adsorbent/adsorbate interactions. Experimental data collected, supplemented with regeneration tests, proved significant affinity of ibuprofen to the hybrid sorbent and enabled determination of nature of the adsorbent/adsorbate interactions. Moreover, suggested mechanism of ibuprofen sorption was proposed.

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Section: Kinetic Studymentioning

confidence: 97%

The role of novel lignosulfonate-based sorbent in a sorption mechanism of active pharmaceutical ingredient: batch adsorption tests and interaction study

Ciesielczyk

Żółtowska-Aksamitowska

Jankowska

et al. 2019

Adsorption

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“…limited number of pharmaceuticals including carbamazapine [39][40][41] and ibuprofen [38][39][40], but the adsorption of paracetamol on organo-MMT remains less studied. Recently, a micelle-clay complex composed of MMT and octadecyltrimethylammonium was found to be more efficient than activated carbon in removing paracetamol and its biodegradation product from water [42].…”

Section: Characteristics Of Clay Minerals and Pharmaceuticalsmentioning

confidence: 99%

“…Hydrophobic organoclay adsorbents for pharmaceuticals were obtained by MMT modification with octadecylamine [ 38 ], didodecyldimethylammonium bromide [ 39 ] benzyldimethyltetradecyl ammonium (BDTA), and hexadecyltrimethylammonium (HDTMA) [ 40 , 41 ]. So far, the sorption properties of hydrophobic MMT were tested for a limited number of pharmaceuticals including carbamazapine [ 39 , 40 , 41 ] and ibuprofen [ 38 , 39 , 40 ], but the adsorption of paracetamol on organo-MMT remains less studied.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pharmaceuticals Removal by Adsorption with Montmorillonite Nanoclay

Kryuchkova

Batasheva

Akhatova

et al. 2021

IJMS

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The problem of purifying domestic and hospital wastewater from pharmaceutical compounds is becoming more and more urgent every year, because of the continuous accumulation of chemical pollutants in the environment and the limited availability of freshwater resources. Clay adsorbents have been repeatedly proposed as adsorbents for treatment purposes, but natural clays are hydrophilic and can be inefficient for catching hydrophobic pharmaceuticals. In this paper, a comparison of adsorption properties of pristine montmorillonite (MMT) and montmorillonite modified with stearyl trimethyl ammonium (hydrophobic MMT-STA) towards carbamazepine, ibuprofen, and paracetamol pharmaceuticals was performed. The efficiency of adsorption was investigated under varying solution pH, temperature, contact time, initial concentration of pharmaceuticals, and adsorbate/adsorbent mass ratio. MMT-STA was better than pristine MMT at removing all the pharmaceuticals studied. The adsorption capacity of hydrophobic montmorillonite to pharmaceuticals decreased in the following order: carbamazepine (97%) > ibuprofen (95%) > paracetamol (63–67%). Adsorption isotherms were best described by Freundlich model. Within the pharmaceutical concentration range of 10–50 µg/mL, the most optimal mass ratio of adsorbates to adsorbents was 1:300, pH 6, and a temperature of 25 °C. Thus, MMT-STA could be used as an efficient adsorbent for deconta×ating water of carbamazepine, ibuprofen, and paracetamol.

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“…Notwithstanding, the methods based on adsorption have been the most used in recent years to remove IB from aqueous media due to its high removal efficiency, being the adsorbents of very diverse nature. Ibuprofen has been adsorbed on Organo-Zeolite 18 , activated carbon cloths 19 , mesoporous silicon microparticles 20 , activated carbon 21 – 23 or mica and montmorillonite 24 , polymeric resins 25 , functionalized materials 26 , waste-based adsorbents 27 , or biosorbents 28 , among others. Some current methods employed to remove ibuprofen from aqueous samples are very laborious and require long times to reach the results 29 , 30 , other procedures demand large amounts of adsorbent 31 or high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Magnetic core-modified silver nanoparticles for ibuprofen removal: an emerging pollutant in waters

Vicente-Martínez¹,

Caravaca²,

Soto-Meca³

et al. 2020

Sci Rep

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In this work we present a novel procedure for ibuprofen adsorption from waters employing magnetic core-modified silver nanoparticles. We demonstrate that 93% adsorption of ibuprofen is achieved in 45 min by means of a simple method, for neutral pH and room temperature, also using a low dose of adsorbent, equal to 7 mg in 500 µL of suspension. The characterization of the adsorbent, before and after adsorption, was carried out by means of field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, BET analysis, Fourier-transform infrared spectroscopy and differential scanning calorimetry. It is worth pointing out that ibuprofen can be desorbed and the adsorbent can be reused, remaining unaltered for the first three cycles, and showing 89.3% adsorption efficiency after the third regeneration. A three-parameter model and the Langmuir isotherm characterize the kinetics and isotherm of adsorption.

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Evaluation of a modified mica and montmorillonite for the adsorption of ibuprofen from aqueous media

Cited by 66 publications

References 43 publications

The role of novel lignosulfonate-based sorbent in a sorption mechanism of active pharmaceutical ingredient: batch adsorption tests and interaction study

The role of novel lignosulfonate-based sorbent in a sorption mechanism of active pharmaceutical ingredient: batch adsorption tests and interaction study

Pharmaceuticals Removal by Adsorption with Montmorillonite Nanoclay

Magnetic core-modified silver nanoparticles for ibuprofen removal: an emerging pollutant in waters

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