Electrochemical behavior of phenol in alkaline media at hydrotalcite-like clay/anionic surfactants/glassy carbon modified electrode

Fernández, Lenys; Borrás, Carlos; Carrero, Hermes

doi:10.1016/j.electacta.2006.06.021

Cited by 90 publications

(43 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It should be noticed that, the maximum peak due to the diffraction by basal plane (003) shifts towards lower diffraction angles; several harmonics are recorded and the d-spacing values increased; 9, 87 Å after the anionic exchange. The peak shift at 2θ =10, indicates the CO 3 2-replacement by oxalate anions in the hydrotalcite interlayer [21]. From these results, it can be concluded that the oxalate anions have been intercalated into the gallery of LDH with large interlayer separation.…”

Section: Xrd Analysis Of Pristine and Modified Ldhmentioning

confidence: 50%

See 1 more Smart Citation

Intercalation of oxalate ions in the interlayer space of a layered double hydroxide for nickel ions adsorption

Doungmo

Kamgaing²,

Temgoua³

et al. 2016

IJBAS

View full text Add to dashboard Cite

In this study, sorption properties of a synthesized anionic clay were enhanced by the intercalation of oxalate ions in its interlayer space. The pristine and modified clay materials were characterized by X-ray diffraction, Fourier transform infrared spectroscopy and thermal analysis. These techniques confirmed the presence of oxalate ions in the interlayer space of the clay. The intercalated clay was then used as a matrix for the sorption in batch mode of nickel ions in aqueous solution. The influence of a number of parameters such as contact time, pH, initial concentration of the analyte and adsorbent dosage were studied. The maximum adsorption of nickel was obtained at pH 6, that is, about 90% Ni 2+ removal. The adsorbent/adsorbate equilibrium follows a pseudo-second order kinetics and best matches the Langmuir model. The modified clay was shown to be efficient matrix for the sorption of nickel ions.

show abstract

Section: Xrd Analysis Of Pristine and Modified Ldhmentioning

confidence: 50%

“…Hydrogen bonding between the water molecules and the interlayer anions also accounts for the broadening of this band. The bending mode of water gives rise to a rather weak band around 1625-1643 cm -1 [21][22]. In FT-IR spectra of the Mg 2 AlCO 3 -LDH (Fig.…”

Section: Ft-ir Analysis Of the Mg 2 Alco 3 -Ldh And Mg 2 Alc 2 O 4 -Lmentioning

confidence: 99%

Intercalation of oxalate ions in the interlayer space of a layered double hydroxide for nickel ions adsorption

Doungmo

Kamgaing²,

Temgoua³

et al. 2016

IJBAS

View full text Add to dashboard Cite

show abstract

“…18,19 The composition provides a positively charged environment, which can adsorb the oppositely charged inorganic or organic molecule, such as carboxylic acids, anionic polymers, cyclodextrin, organic phosphoric acids, fullerene and anionic surfactant. 20,21 LDHs exhibit many properties such as catalysis, catalyst precursors, anion exchangers, adsorbents, and bioactive materials. 22,23 LDHs are also an attractive material for electrode function of transducer surfaces, because of their thermal stability, chemical inertia, well-defined layered structure, ion-exchange properties, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalysis Oxidation of GMP Based on Layered Double Hydroxide Functionalized with Anionic Surfactant and Room Temperature Ionic Liquid Modified Glassy Carbon Electrode

Cui

Yin

et al. 2011

Chin. J. Chem.

View full text Add to dashboard Cite

The electrocatalysis oxidation of guanosine-5'-monophosphate (GMP) was investigated on Mg-Al layered double hydroxide (LDH) functionalized with sodium dodecyl sulfate (SDS) and room temperature ionic liquid (RTIL) modified glass carbon electrode (GCE). The cyclic voltammogram of GMP on the modified electrode (RTIL/ LDH-SDS/GCE) exhibited a well defined anodic peak at 1.091 V in 0.2 mol•L -1 pH 4.4 acetate buffer solution. The GMP oxidation was enhanced in the presence of anionic surfactant in the films. The results suggest that the surfactant molecules intercalate the LDH layers to preconcentrate GMP molecules and the RTIL showed good ionic conductivity. The experimental parameters were optimized, the kinetic parameters were investigated and the probable oxidation mechanism was proposed. Under the optimized conditions, the oxidation peak current was proportional to GMP concentration in the range from 5.0×10 -7 to 1.0×10 -4 mol•L -1 with the correlation coefficient of 0.9987 and the detection limit was 1.0×10 -7 mol•L -1 . The RTIL/LDH-SDS/GCE showed a good electrochemical response to the oxidation of GMP and would be developed into a new biosensor.

show abstract

“…For example, montmorillonite intercalated with hexadecyltrimethylammonium as a modifier in the carbon paste electrode was able to adsorb pesticides isoproturon, carbendiazim, and methyl parathion [24], which showed to be suitable for stripping voltammetric determination of these pesticides in soil and water. Preconcentration of phenol on glassy carbon electrode modified with film of hydrotalcitelike clay containing surfactant sodium octyl sulfate, sodium dodecyl sulfate, or sodium dodecylbenzenesulfonate [25] as well as octylphenoxypolyethoxyethanol or cetylpyridinium bromide [26] was studied. The electrodes exhibited good sensitivity and reproducibility of phenol determination [25].…”

Section: Introductionmentioning

confidence: 99%

“…Preconcentration of phenol on glassy carbon electrode modified with film of hydrotalcitelike clay containing surfactant sodium octyl sulfate, sodium dodecyl sulfate, or sodium dodecylbenzenesulfonate [25] as well as octylphenoxypolyethoxyethanol or cetylpyridinium bromide [26] was studied. The electrodes exhibited good sensitivity and reproducibility of phenol determination [25]. Carbon paste electrode modified with montmorillonite exchanged with hexadecyltrimethylammonium bromide was successfully used to determine 4-chlorphenol in water samples [27].…”

Section: Introductionmentioning

confidence: 99%

Application of Electrochemistry for Studying Sorption Properties of Montmorillonite

Navrátilová¹,

Mars̆álek²

2012

Clay Minerals in Nature - Their Characterization, Modification and Application

View full text Add to dashboard Cite

Electrochemical behavior of phenol in alkaline media at hydrotalcite-like clay/anionic surfactants/glassy carbon modified electrode

Cited by 90 publications

References 52 publications

Intercalation of oxalate ions in the interlayer space of a layered double hydroxide for nickel ions adsorption

Intercalation of oxalate ions in the interlayer space of a layered double hydroxide for nickel ions adsorption

Electrocatalysis Oxidation of GMP Based on Layered Double Hydroxide Functionalized with Anionic Surfactant and Room Temperature Ionic Liquid Modified Glassy Carbon Electrode

Application of Electrochemistry for Studying Sorption Properties of Montmorillonite

Contact Info

Product

Resources

About