Ionic liquid–kaolinite nanohybrid materials for the amperometric detection of trace levels of iodide

Dedzo, Gustave Kenne; Detellier, Christian

doi:10.1039/c2an36618e

Cited by 42 publications

(22 citation statements)

References 56 publications

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“…The starting clay mineral presents a sharp peak at high 2θ values (d 001 =0.71 nm), which is in agreement with previously reported data for the same material . DMSO intercalation shifts the d‐value to 1.11 nm corresponding an expansion of the interlayer space of 0.4 nm . The XRD patterns of kaolinite grafted with 1,2‐tetradecanediol after the first washing (K‐TDD1) showed the characteristic d 001 of kaolinite at 0.71 nm and another sharp peak at 3.94 nm.…”

Section: Resultsmentioning

confidence: 91%

Preparation of Organophilic Nanohybrid Kaolinite and Application to the Electrochemical Detection of Organic Pesticide

2017

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Novel organophilic nanohybrid materials (K‐TDD) were obtained by the grafting of 1,2‐tetradecanediol (TDD) onto the surface of kaolinite (K). XRD, IR, TGA‐DTG, and SEM characterization showed that TDD grafting results in a partial exfoliation of kaolinite layers. This material was used to modify a glassy carbon electrode (GCE/K‐TDD) and applied for the trace analysis of methyl parathion (MP). The signal of MP recorded on GCE/K‐TDD was more intense compared to the unmodified GCE or to one modified with a film of natural kaolinite. Several parameters that can affect the stripping response were systematically investigated to optimize the sensitivity of the organokaolinite‐modified electrode. A linear calibration curve for MP was obtained in the concentration range from 2×10−6 to 14×10−6 mol .L−1 in acetate buffer (pH 6), giving a detection limit of 9×10−8 mol .L−1. The sensitivity of the method was found to be 2.42 μA/μM for the range of concentrations that gives a linear calibration curve. The electrode was shown to be very stable, with the electrochemical response of MP decreasing by only 1.5 % after a series of nine measurements. The interference of various inorganic ions and organic compounds likely to influence the stripping determination of the MP were also examined. The results showed that the GCE/K‐TDD electrode was effective in solutions containing interfering species and could be applied for the quantification of MP pesticide in natural water.

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Section: Resultsmentioning

confidence: 91%

Preparation of Organophilic Nanohybrid Kaolinite and Application to the Electrochemical Detection of Organic Pesticide

2017

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“…The intercalated kaolinite complexes are excellent precursors for synthesizing several grafted, hybrid organo-mineral nanomaterials with desirable properties [16][17][18][19]. Due to their thermal stability and resistance to hydrolysis, the grafted kaolinites found application as adsorbents [20,21], catalysts [22,23], luminescent materials [24], electrochemical sensors [25,26] or fillers in polymer nanocomposites [27]. Recently a halloysite sample grafted with selected aminoalcohols was successfully applied as an adsorbent for heavy metals removal from aqueous solutions [28].…”

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confidence: 99%

Di- and triethanolamine grafted kaolinites of different structural order as adsorbents of heavy metals

Koteja

Matusik

2015

Journal of Colloid and Interface Science

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“…The application for the detection of anions had been exploited for quantitative electroanalysis of iodides . A pre‐concentration‐detection strategy was used to reduce the effect of interfering ions on the signal intensity.…”

Section: Modification Of Kaolinite By Ilsmentioning

confidence: 98%

Kaolinite Clay Mineral Reactivity Improvement through Ionic Liquid Functionalization

Dedzo

2018

Israel Journal of Chemistry

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Since the intercalation of 1‐ethylpyridinium chloride in the interlayer space of kaolinite in 2005, several other ionic liquids (ILs) have been successfully intercalated. Unlike other clay minerals that display charged structural units, kaolinite is almost neutral. ILs intercalation in kaolinite results in both the cation and the anion in the interlayer space. The confinement of ILs in this two‐dimensional polarized space is of numerous interests, with certainly the most important to be discovered. Moreover, kaolinite interlayer space is decorated by a dense network of hydroxyl functions that can be easily functionalized. Recent study demonstrates that it is possible to synthesize ILs from simple organic molecules whose cations can be permanently grafted into the interlayer space of kaolinite. This review presents the results obtained in kaolinite functionalization by ILs, by focusing on the synthesis, applications and potential perspectives offered by these new nanohybrid materials.

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Ionic liquid–kaolinite nanohybrid materials for the amperometric detection of trace levels of iodide

Cited by 42 publications

References 56 publications

Preparation of Organophilic Nanohybrid Kaolinite and Application to the Electrochemical Detection of Organic Pesticide

Preparation of Organophilic Nanohybrid Kaolinite and Application to the Electrochemical Detection of Organic Pesticide

Di- and triethanolamine grafted kaolinites of different structural order as adsorbents of heavy metals

Kaolinite Clay Mineral Reactivity Improvement through Ionic Liquid Functionalization

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