Fabrication of magnetic particles imprinted cellulose based biocomposites for chromium(VI) removal

Periyasamy, Soodamani; Gopalakannan, Venkatrajan; Viswanathan, Natrayasamy

doi:10.1016/j.carbpol.2017.06.029

Cited by 74 publications

(33 citation statements)

References 40 publications

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“…In order to get the best extraction conditions, different materials were evaluated for the preparation of the magnetic nanoparticles: -cyclodextrin (β-CD) [31], polydopamine (PDA) [32], chitosan [33], oleic acid [34], polystyrene (PS) [35], Fe3O4@MWCNTs [36], MWCNTS/Fe3O4/polypyrrole (PPy) [36], PPy-nanotubes (NTs) [37] and magnetic cellulose particles [38], and desorption solvents, methanol (MeOH), and acetonitrile (MeCN). For this study, a mass of 20 mg of each nanoparticle type was added to 5 mL of sample spiked at 100 ng/mL before submitting the mixture to orbital shaking for 20 min.…”

Section: Optimization Of Sample Treatmentmentioning

confidence: 99%

Dispersive Solid-Phase Extraction using Magnetic Carbon Nanotube Composite for the Determination of Emergent Mycotoxins in Urine Samples

Arroyo‐Manzanares

Peñalver-Soler

Campillo

et al. 2020

Toxins

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Dispersive magnetic solid-phase extraction (DMSPE) has received growing attention for sample treatment preconcentration prior to the separation of analytes due to its many advantages. In the present work, the potential of DMSPE for the determination of emergent mycotoxins (enniatins A, A1, B and B1, and beauvericin) is investigated for the first time. Different magnetic nanoparticles were tested and a magnetic multiwalled carbon nanotube (Fe3O4@MWCNT) composite was selected for the extraction and preconcentration of the five target mycotoxins in human urine samples before their analysis by ultrahigh performance liquid chromatography coupled to high resolution mass spectrometry (UHPLC-HRMS). The nanocomposite was characterized by energy dispersive X-ray spectrometry, scanning electron microscopy, Fourier transform infrared spectrophotometry, and X-ray diffraction. Several parameters affecting the adsorption and desorption of DMSPE steps were optimized and the method was fully validated. Due to a matrix effect, matrix-matched calibration curves were necessary to carry out quantification. In this way, limits of quantification of between 0.04 and 0.1 μg/L, relative standard deviation values lower than 12% and recoveries between 89.3% and 98.9% were obtained. Finally, a study of the reuse of the Fe3O4@MWCNT composite was carried out, confirming that it can be reused at least four times.

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Section: Optimization Of Sample Treatmentmentioning

confidence: 99%

Dispersive Solid-Phase Extraction using Magnetic Carbon Nanotube Composite for the Determination of Emergent Mycotoxins in Urine Samples

Arroyo‐Manzanares

Peñalver-Soler

Campillo

et al. 2020

Toxins

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“…In addition, if the adsorption process is reversible, the adsorbent can be regenerated by a suitable desorption process. [5] Many adsorbents have been developed to eliminate Cr(VI) from wastewater, in particular, activated carbons, [6] zeolites, [7] clays, [8] nanomagnetic particles, [9,10] photocatalytic nanocomposites, [11] biosorbents [12] and silica materials. [13] However, some of these materials are expensive and difficult to dispose of after use.…”

Section: Introductionmentioning

confidence: 99%

Carbohydrate-supramolecular gels: Adsorbents for chromium(VI) removal from wastewater

Rizzo

Andrews

Steed

et al. 2019

Journal of Colloid and Interface Science

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Francesca (2019) 'Carbohydrate-supramolecular gels : adsorbents for chromium(VI) removal from wastewater.', Journal of colloid and interface science., 548 . pp. 184-196. Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. AbstractHypothesis. To overcome the contamination of water by heavy metals the adsorption of the pollutant on gel phases is an attractive solution since gels are inexpensive, potentially highly efficient and form a distinct phase while allowing diffusion of the contaminated water throughout the material. This work tests the chromium(VI) adsorbent capacity of new supramolecular gels for Chromium(VI) removal from wastewater.Experiments. First hydrophobic imidazolium salts of carbohydrate anions were synthesised as new gelators. Subsequently, they were dissolved in a solvent by heating and, after cooling overnight, to give the formation of supramolecular gels. The properties of the resulting gels, such as thermal stability, mechanical strength, morphology, rheology, and kinetics of gel formation, were studied as a function of gelator structure, gelation solvent and pollutant removal efficiency.Findings. Carbohydrate-derived gels showed the best removal capacity, i.e. 97% in 24 h.Interestingly, in one case, the reduction of chromium(VI) to chromium(III) also occurred after the adsorption process, and this phenomenon has been analysed using 1 H NMR spectroscopy, IR spectroscopy, and SEM. The most efficient gel can reach an adsorption capacity of 598 mg/g in contrast to a value of 153 mg/g for the most effectively best hydrogels reported to date. The new gel can be also recycled up to 4 times. These findings suggest that these new, supramolecular hydrogels have potential applications in environmental remediation.

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“…Due to the low adsorption performance of chitin, earlier research was concentrated on fabricating chitosan from chitin through deacetylation usually employing a strong base like NaOH to provide reactive sites enriched with NH 2 and OH functional groups. 57 Chemical modication of cellulose and chitosan with organic ligands and cross-linking 21,36,51,54,58,59 dominated earlier research but recently emphasis has been on the incorporation of nanomaterials into their backbone. 16,60,61 The latter has been reported to improve the adsorption performance for both adsorbents.…”

Section: Adsorbent Classification Characteristics and Development Himentioning

confidence: 99%

“…Besides the dominant adsorption-reduction mechanism, recent studies have reported three mechanisms all taking place simultaneously, ion-exchange, electrostatic attraction, and reduction. 34,36 The ion exchange mechanism was explained on the basis of the presence of CO 3 2À in the interlayer structures of magnetic particles imprinted cellulose-based biocomposites made from hydrotalcite (HT) and hydroxyapatite (Hap). 36 The electrostatic attraction of chromate anions to the adsorbent's surface could be the result of the presence of higher valence cations like Ca 2+ , Mg 2+ and Fe 3+ in the adsorbent 36 as indicated in Fig.…”

Section: Mechanisms Of Chromium Removal (Advancement In Interpretation)mentioning

confidence: 99%

Recent advances in hexavalent chromium removal from aqueous solutions by adsorptive methods

2019

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Fabrication of magnetic particles imprinted cellulose based biocomposites for chromium(VI) removal

Cited by 74 publications

References 40 publications

Dispersive Solid-Phase Extraction using Magnetic Carbon Nanotube Composite for the Determination of Emergent Mycotoxins in Urine Samples

Dispersive Solid-Phase Extraction using Magnetic Carbon Nanotube Composite for the Determination of Emergent Mycotoxins in Urine Samples

Carbohydrate-supramolecular gels: Adsorbents for chromium(VI) removal from wastewater

Recent advances in hexavalent chromium removal from aqueous solutions by adsorptive methods

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