Magnetic chitosan graphene oxide composite for solid phase extraction of phenylurea herbicides

Shah, Jasmin; Jan, Muhammad Rasul; Tasmia,

doi:10.1016/j.carbpol.2018.07.050

Cited by 76 publications

(12 citation statements)

References 54 publications

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“…Magnetic chitosan was synthesized according to our previous work (Shah et al, 2018). Accordingly for the synthesis of magnetic chitosan, 0.5 g of chitosan was added to 100 ml of 2% acetic acid solution and dissolved using an ultrasonic bath.…”

Section: Adsorbent/magnetic Chitosan Preparationmentioning

confidence: 99%

“…Phenolic compounds used in industries like nonylphenol, 4-tert-butylphenol, octylphenol, and bisphenols are the potential endocrine-disrupting chemicals (EDCs). EDCs can create hazardous effects because of exogenous endocrine disruption in the neurological, reproductive, and immune systems at a very low concentration in the ppb range (Ahmad et al, 2018;Shah et al, 2018). Due to high toxicity of phenolic compounds, the U.S. EPA added these compounds to a list of highly toxic pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…It is obtained by deacetylation of chitin in basic medium. Chitosan contains two functional groups, namely, hydroxyl and amino groups (Elwakeel et al, 2014;Ge ad Ma, 2015;Elwakeel et al, 2017;Elwakeel et al, 2018;Shah et al, 2018;Briao et al, 2020). Chitosan can be easily combined with other materials to form a composite and has attracted attention due to emerging chitosan composites.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Removal and Extraction of Bisphenol A and 4-tert-butylphenol From Water Samples Using Magnetic Chitosan Particles

et al. 2022

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Magnetic chitosan (MC) was used as an ecofriendly and potential adsorbent for the removal of bisphenol-A and 4-tert-butylphenol from water samples. The magnetic chitosan was synthesized and characterized for functional groups, surface morphology, elemental composition, and crystallinity using spectroscopic techniques. Factors influencing the uptake such as pH, mass of adsorbent, bisphenol-A and 4-tert-butylphenol concentration, contact time, and temperature were examined thoroughly using aqueous solutions. Equilibrium, kinetic, and thermodynamic parameters were evaluated, and the results revealed that the adsorption of bisphenol-A and 4-tert-butylphenol followed pseudo-second-order kinetics and Langmuir adsorption isotherm. The adsorption processes were exothermic and spontaneous. The method was found feasible for the removal and extraction of bisphenol-A and 4-tert-butylphenol in environmental water samples. The recovery of bisphenol A and 4-tert-butylphenol in tap water ranged from 95.6% to 96.8% and 95.4% to 101.2% and in river water from 87.6% to 95.9% and 92.8% to 98.2%, respectively. The results indicate that magnetic chitosan is a potential adsorbent for easy, effective removal and extraction of bisphenol-A and 4-tert-butylphenol from environmental water samples, and the adsorbent material is chemically benign and environment friendly.

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Section: Adsorbent/magnetic Chitosan Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simultaneous Removal and Extraction of Bisphenol A and 4-tert-butylphenol From Water Samples Using Magnetic Chitosan Particles

et al. 2022

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“…For instance, the synergistic effect occurring between graphene and tetraethoxysilanemethyltrimethoxysilane polymer provided better sensitivity and selectivity for the extraction of organophosphorus pesticides as compared to unmodified graphene, giving rise to a 20-fold improvement in the limit of detection [70]. GO nanosheets were also exploited as ideal substrates for immobilising polymers such as chitosan [72] and polyoxotungstate [73], which results in not only superior adsorbents, but also in enhanced polymer stability, better dispersibility in water and easier recovery from sample matrix.…”

Section: Graphene-based Nanocomposites: Types Synthesis and Propertiesmentioning

confidence: 99%

Graphene-based nanocomposites in analytical extraction processes

Pena‐Pereira

Romero

Calle

et al. 2021

TrAC Trends in Analytical Chemistry

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“…It is also interesting to mention that chitosan-based materials have been used not only as extraction sorbent but for the removal of interferences in clean-up steps based on m-dSPE [113,114] and m-m-dSPE [73,83] when analyzing food samples. It is worth mentioning some specific applications, able to deal with complex samples, and a For the definition of the abbreviations, refer to the list of abbreviations.…”

Section: Analytical Applications With Chitosan-based Materials In Sorbent-based Microextractionmentioning

confidence: 99%

Biopolymers in sorbent-based microextraction methods

Pacheco‐Fernández

Allgaier-Díaz

Mastellone

et al. 2020

TrAC Trends in Analytical Chemistry

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Since the introduction of the Green Analytical Chemistry guidelines, there has been an increasing concern on the sustainability of sample preparation approaches, particularly if considering they constitute the most time-consuming step of the analytical method and the main source of laboratory wastes. Among the alternatives explored, it is important to highlight the miniaturization of the extraction methods, which has been accompanied by the seek of greener solvents and sorbents. Biopolymers emerge as potential candidates to be used as sorbents in microextraction schemes given their biodegradability, versatility, and easily functionalization. This review offers an overview on biopolymers (chitosan, cellulose, alginate, and agarose) in sorbent-based microextraction approaches, paying attention to the preparation of the sorbent and the format in which biopolymers are incorporated into the sorbent/device, thus implying a specific microextraction approach, their role in the resulting sorbent material, and the reported analytical applications, covering environmental, food, and bioclinical analysis.

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Magnetic chitosan graphene oxide composite for solid phase extraction of phenylurea herbicides

Cited by 76 publications

References 54 publications

Simultaneous Removal and Extraction of Bisphenol A and 4-tert-butylphenol From Water Samples Using Magnetic Chitosan Particles

Simultaneous Removal and Extraction of Bisphenol A and 4-tert-butylphenol From Water Samples Using Magnetic Chitosan Particles

Graphene-based nanocomposites in analytical extraction processes

Biopolymers in sorbent-based microextraction methods

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