Surface ion-imprinted amino-functionalized cellulosic cotton fibers for selective extraction of Cu(II) ions

Monier, M.; Ibrahim, Ahmad; Metwally, M.; Badawy, D. S.

doi:10.1016/j.ijbiomac.2015.08.004

Cited by 31 publications

(4 citation statements)

References 32 publications

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“…However, the affinity toward both dyes was dramatically reduced at higher pH values, which could be attributed to the inevitable decrease of the protonation degree of the inserted functional groups that could interact with anionic sulfonate groups of the dyes and consequently, decrease the adsorption capability of the Tu-MC fibers [26]. On the other hand, the Cu(II) ion containing Cu(II)/Tu-MC fibers displayed different behaviors and exhibited relatively higher uptake values for both ECR and SPADNS at pH values 5 and 6 (Fig.…”

Section: Effect Of Phmentioning

confidence: 99%

Rapid Adsorption of Acid Dyes Using Cu(II) Thiourea Modified Cellulose Complex

Shafik¹,

Hashem²,

Abdel-Bary³

2021

Preprint

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In the present work, the acid dyes namely, eriochrome cyanine R (ECR) and 2-(4-Sulfo phenyl azo)-1,8 dihydroxy-3,6 naphthalene disulfonic acid, trisodium salt (SPADNS) were effectively adsorbed by Cu(II)-thiourea modified cotton fibers (Cu(II)/Tu-MC) complex. FTIR, SEM, thermogravimetric analysis, and potentiometric titration were utilized for characterization. The impact of the fundamental adsorption parameters was systematically investigated. The results reveal that the adsorption of ECR and SPADNS acid dyes occurs via a metal-coordination mechanism. Furthermore, the adsorption process follows the 2nd order kinetic model and Langmuir model adsorption isotherm. The Cu(II)/Tu-MC shows high adsorption capacities of 0.27 and 0.22 mmol. g-1 for ECR and SPADNS, respectively. These findings indicate that the cationization of cellulose fibers with metal ions is a promising and efficient strategy towards enhancing the adsorption of acid dyes.

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Section: Effect Of Phmentioning

confidence: 99%

Rapid Adsorption of Acid Dyes Using Cu(II) Thiourea Modified Cellulose Complex

Shafik¹,

Hashem²,

Abdel-Bary³

2021

Preprint

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“…In this case, the microextraction process was simplified drawing upon the in-pipette-tip solid phase extraction (SPE), exhibiting good selectivity, capacity, and accuracy [46]. On the other hand, cotton has been altered through graft copolymerization with polyacrylonitrile (PAN) for selective extraction via the imprinting process of copper ions from aqueous solutions [47]. In the same way, carbon-based nanomaterials such as carbon nanotubes or graphene have been incorporated into cotton fibers, being the last one employed as sorbent for the determination of multiclass pesticide residues from water samples [48], along with a large number of applications.…”

Section: Cottonmentioning

confidence: 99%

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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Green analytical chemistry principles aim to minimize the negative impact of analytical procedures in the environment, which can be considered both at close (to ensure the safety of the analysts) and global (to conserve our natural resources) levels. These principles suggest, among other guidelines, the reduction/minimization of the sample treatment and the use of renewable sources when possible. The first aspect is largely fulfilled by microextraction, which is considered to be among the greenest sample treatment techniques. The second consideration is attainable if natural products are used as raw materials for the preparation of new extraction phases. This strategy is in line with the change in our production system, which is being gradually moved from a linear model (take-make-dispose) to a circular one (including reusing and recycling as key terms). This article reviews the potential of natural products as sorbents in extraction and microextraction techniques from the synergic perspectives of two research groups working on the topic. The article covers the use of unmodified natural materials and the modified ones (although the latter has a less green character) to draw a general picture of the usefulness of the materials.Separations 2020, 7, 2 2 of 22 principle identifies one of the trends of current research in analytical sciences, it is difficult to be applied when complex samples containing the analytes at very low concentrations are processed. In such scenarios, the simplification of the sample treatment and the reduction of the sources applied (reagents, energy) can be a more practical objective, at least currently. Microextraction techniques fulfill the latter criteria [8], and they are considered among the greenest sample treatment techniques [9].Microextraction techniques have evolved in the last decade following some key trends. Among them, the development of new extraction phases can be highlighted, considering the context of this review article. In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.The paradigm of our production system, which up to now has been based on a linear "take-make-dispose" model, is progressively changed to a circular model [14] where reusing, repairing, refurbishing, and recycling appear as key terms. The use of surpluses of natural products as raw materials for the preparation of new sorbents is an interesting contribution of analytical chemistry for changing the production model. This review article, which combines the vision of two research groups working in the topic, tries to draw the general picture of the potential of natural products for the synthesis of new sorptive phases in solid phase extraction and solid phase microextraction. The article will cover strategies with different green characterist...

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“… 13 , 14 Adsorption is regarded as one of the most efficient known techniques, which is able to extract heavy metal cations from aqueous solutions without the drawbacks of the previously mentioned methods. 15 In previous studies, various adsorbents were prepared and utilized for removal of different metal ions such as modified grafted cellulosic cotton fibers, 16 , 17 grafted PET fibers, 18 modified chitosan, and alginate. 19 , 20 , 21 , 22 Despite the obvious competence of these adsorbents, the absence of selectivity could be a serious limitation to their use on a large scale.…”

Section: Introductionmentioning

confidence: 99%

Design, synthesis, and study of Pd(II) ion‐imprinted functionalized polymer

Nozari

Monier

Bashal

2020

Analytical Science Advances

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Selective metal ions’ extraction and recovery has various applications in the analytical field. Metal ions need to be extracted, detected, and quantified. For that purpose, ion‐imprinted polymers have earned a great deal of attention during the past two decades. Pd2+ ion‐imprinted hollow silica particles including an isatin Schiff base were prepared by Schiff base condensation of (3‐aminopropyl)triethoxysilane and isatin. The prepared Schiff base ligand was coordinated to the target Pd2+ cations, the polymerizable Pd‐complex was set aside to form gel in the company of tetraethoxysilane and the target Pd2+ cations were subsequently removed from the cross‐linked silica network by means of acidified thiourea solution. All materials throughout this synthesis process were investigated utilizing mass spectrometry, elemental analysis, FTIR, and 1H‐NMR. The morphological structure of both Pd2+ ion‐imprinted and non‐ion‐imprinted silica polymer were pictured by scanning electron microscopy. Several batches were studied exploiting both Pd2+ ion‐imprinted and non‐ion‐imprinted silica polymer to test their functionality for selective extraction of Pd2+ cations in multi‐ionic solution of Ni2+, Co2+, Cu2+, Mn2+, and Pd2+.

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Surface ion-imprinted amino-functionalized cellulosic cotton fibers for selective extraction of Cu(II) ions

Cited by 31 publications

References 32 publications

Rapid Adsorption of Acid Dyes Using Cu(II) Thiourea Modified Cellulose Complex

Rapid Adsorption of Acid Dyes Using Cu(II) Thiourea Modified Cellulose Complex

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Design, synthesis, and study of Pd(II) ion‐imprinted functionalized polymer

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