Extraction of Zn(II) Using Magnetic Chitosan Nanoparticles Grafted with B-cyclodextrin and Determination by FAAS

karimnezhad, Kamelia; Moghimi, Ali

doi:10.13005/ojc/300112

Cited by 9 publications

(4 citation statements)

References 31 publications

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“…The image shows that the magnetic nanoparticles were encapsulated evenly in the cross-linked chitosan adsorbents. The MCNP size range in the present study is much higher than the value of 30 -100 nm reported for magnetic chitosan nanoparticles grafted with β-cyclodextrin (Karimnezhad & Moghimi, 2014).…”

Section: Results and Analysiscontrasting

confidence: 71%

Elimination of Aflatoxins from Two Selected Nigerian Vegetable Oils using Magnetic Chitosan Nanoparticles

et al. 2021

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Activated charcoal and imarsil (local adsorbent) had shown significant Aflatoxin (AF) decontamination potentials in vegetable oil at a low AF contamination level of ≤ 9 ng/L. AF contamination in vegetable oils can be more than a hundred-fold of this. Therefore, it is needed to investigate the potential of other adsorbents at higher AF contamination levels. Magnetic Chitosan Nanoparticle (MCNP) was synthesized, and its aflatoxins extraction efficiency from two edible vegetable oils was investigated. MCNP exhibited extraction efficiencies of 82.80 – 100% and 94.87 – 100% in palm kernel oil and palm oil at the contamination levels of 579.6 and 964.6 ng/L respectively. Total aflatoxins cleanup of the palm oil and palm kernel oil was possible at 30 °C within 30 and 60 minutes, respectively, at the optimized condition of 4.4 mg/L MCNP. MCNP concentration, temperature of extraction, and contact time were significant (p < 0.05) in palm kernel oil, while these conditions were not significant (p > 0.05) in palm oil. The results of the present investigation depict that the AF extraction efficiency of MCNP depends on the type of vegetable oil and that MCNP could be a credible alternative for AF decontamination of the investigated vegetable oil. Keywords: aflatoxins, chitosan, contamination, nanoparticles, vegetable oils

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Section: Results and Analysiscontrasting

confidence: 71%

Elimination of Aflatoxins from Two Selected Nigerian Vegetable Oils using Magnetic Chitosan Nanoparticles

et al. 2021

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“…Carboxymethyl-hydroxypropyl-β-CD and carboxymethyl-β-CD were also used to modify magnetite nanoparticles with the help of polymer modification [ 126 ] and amino groups [ 127 ] for the adsorption of rutin from plants and PCBs from the soil. Karimnezhaz et al reported the use of magnetic chitosan nanoparticles grafted with β-CD for the dispersive SPE of Zn 2+ and Co 2+ from water followed by quantitation by adsorption spectrometry [ 128 , 129 ]. In both cases, the loading capacity of the sorbent was demonstrated to be quite good.…”

Section: Deeping In: the Environmental Benefits Of Using Cyclodextmentioning

confidence: 99%

Cyclodextrins as a Key Piece in Nanostructured Materials: Quantitation and Remediation of Pollutants

et al. 2020

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Separation and pre-concentration of trace pollutants from their matrix by reversible formation of inclusion complexes has turned into a widely studied field, especially for the benefits provided to different areas. Cyclodextrins are non-toxic oligosaccharides that are well known for their host–guest chemistry, low prices, and negligible environmental impact. Therefore, they have been widely used as chiral selectors and delivery systems in the pharmaceutical and food industry over time. However, their use for extraction purposes is hampered by their high solubility in water. This difficulty is being overcome with a variety of investigations in materials science. The setting-up of novel solid sorbents with improved properties thanks to the presence of cyclodextrins at their structure is still an open research area. Some properties they can offer, such as an increased selectivity or a good distribution along the surface of a solid support, which provides better accessibility for guest molecules, are characteristics of great interest. This systematic review reports the most significant uses of cyclodextrins for the adsorption of pollutants in different-origin samples based on the works reported in the literature in the last years. The study has been carried out indistinctly for quantitation and remediation purposes.

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“…Silica gel surface consists of siloxane (Si-O-Si) and silanol (Si-OH) groups that allow to be modified through covalent binding with surface functional groups such as -CN, -SH, and -NH 2 [9]. Modification of silica surface can increase the adsorption effectivity and selectivity of the metal ions [10]. Adsorption of Au(III) by silica modified with organic compounds containing amine groups provides greater capacity [11], which increases along with the increasing amount of amine groups on the silica surface [12].…”

Section: Introductionmentioning

confidence: 99%

Modification of Silica Coated on Iron Sand Magnetic Material with Chitosan for Adsorption of Au(III)

et al. 2017

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Extraction of Zn(II) Using Magnetic Chitosan Nanoparticles Grafted with B-cyclodextrin and Determination by FAAS

Cited by 9 publications

References 31 publications

Elimination of Aflatoxins from Two Selected Nigerian Vegetable Oils using Magnetic Chitosan Nanoparticles

Elimination of Aflatoxins from Two Selected Nigerian Vegetable Oils using Magnetic Chitosan Nanoparticles

Cyclodextrins as a Key Piece in Nanostructured Materials: Quantitation and Remediation of Pollutants

Modification of Silica Coated on Iron Sand Magnetic Material with Chitosan for Adsorption of Au(III)

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