Sensitive stripping voltammetry detection of Pb(II) at a glassy carbon electrode modified with an amino-functionalized attapulgite

Jiokeng, Sherman Lesly Zambou; Dongmo, Liliane M.; Ymélé, Ervice; Ngameni, Emmanuel; Tonlé, Ignas Kenfack

doi:10.1016/j.snb.2016.09.150

Cited by 48 publications

(29 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, chemically modified electrodes (CMEs) represent one of the main areas of electrochemistry research with many applications including analytical chemistry [13,14], solar energy conversion [15,16], electrochromic display devices [17] and molecular electronic devices [18]. In the analytical field, different types of conductive materials were used to develop CMEs: polymers [19,20], mesoporous silicate films [21,22], nanoparticles [23] and clay minerals [9,[24][25][26][27]. Clay-modified electrodes have distinct advantages over conventional electrodes in many areas of application, such as electrocatalysis, electrochemical sensors and preconcentration electroanalysis.…”

Section: Introductionmentioning

confidence: 99%

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

et al. 2020

Self Cite

View full text Add to dashboard Cite

This work describes a new sensitive sensor for the simultaneous electrochemical determination by square wave anodic stripping voltammetry of Cd 2+ and Pb 2+ ions in aqueous solution, based on a disposable ink-jet-printed graphene electrode (IPGE) modified by a thin film of montmorillonite (Mont) clay mineral. The clay was characterized by X-ray diffraction and scanning electron microscopy while the Mont-IPGE was analyzed by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry before its exploitation for sensing studies. EIS results revealed a low electron transfer rate on Mont-IPGE during the electro-oxidation of [Fe(CN) 6 ] 3−. The stripping response on both Cd 2+ and Pb 2+ analytes was improved by the in situ co-deposition with bismuth, added to the electrolyte solution, on the clay substrate. The proposed electrode showed great stability and good reproducibility. The key experimental parameters governing the stripping analysis of Cd 2+ and Pb 2+ were optimized. A linear relationship between peak currents and concentrations of the analytes was obtained in the range from 0.01 to 0.21 µM, leading to detection limits of 0.42 nM for Cd 2+ and 1.14 nM for Pb 2+ ions, respectively (S/N = 3). The sensitivities to Cd 2+ and Pb 2+ ions were 921.8 A cm −2 M −1 and 1960.8 A cm −2 M −1 , respectively. The Mont-IPGE sensor was used for the quantification of lead and cadmium in a mineral water.

show abstract

Section: Introductionmentioning

confidence: 99%

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The resort to clays and clay minerals as inorganic parent support for such materials is due to their surface reactivity and ability to immobilize guest organic molecules, either within their structure or on their surface [1][2][3]. In fact, clay-based nanohybrid materials offer a wide range of applications in environmental protection [4][5][6][7][8], in catalysis [9][10], in polymer science [11][12] and in analytical electrochemistry [13][14][15][16]. In the last-mentioned application, composite materials derived from the modification of kaolinite [17][18] and smectite [19][20][21][22][23] as precursors are the most investigated, probably because these types of clay possess a layered structure favorable to intercalation processes and grafting reactions.…”

Section: Introductionmentioning

confidence: 99%

Nanohybrid materials from amine functionalization of sepiolite: Preparation, characterization and application as electrode modifiers for the electroanalytical detection of heavy metal ions

Ymélé¹,

Sherman²,

Francis³

et al. 2017

Adv Mater Sci

View full text Add to dashboard Cite

Sepiolite-based organic-inorganic hybrid materials bearing amine groups were prepared by chemical grafting using 3-aminopropyltriethoxysilane (APTES) and [(3-(2-aminoethylamino)propyl)]trimethoxysilane (AEPTMS). The structural properties of the pristine sepiolite and the obtained composites materials were analysed using XRD, TG/DTA analysis and FTIR. The surface ion exchange ability of the functionalized clay minerals coated as thin film on glassy carbon electrodes and exposed to [Ru(NH 3 ) 6 ] 3+/2+ or [Fe(CN) 6 ] 3−/4-electroactive probes was also investigated by multisweep cyclic voltammetry (MSCV) and by Electrochemical impedance spectroscopy (EIS). From MSCV data, it was found that sepiolite and organosepiolites display a permselective behavior depending on the charge on its surface while EIS results showed that the functionalization of sepiolite enhanced its conductivity. The organosepiolites were tested in a comparative way for the voltammetric detection of mercury (II), and some preliminary experiments based on differential pulse voltammetry highlighted the interest of using the most sensitive organoclay (i.e. the sample grafted by AEPTMS) for the electroanalysis of several heavy metals in the same solution.

show abstract

“…Results obtained showed that the presence of interferent metal ions affected the stripping peak current values due to the formation of intermetallic compounds and the great affinity of foreign metal ions towards amino and carbonyl groups presented in the modified electrode. This could be completely diminished by complexation of these ions prior to the ASV of target HMs as found in the literature .…”

Section: Resultsmentioning

confidence: 99%

Novel Sensor Based on Poly (1,2‐Diaminoanthraquinone) for Individual and Simultaneous Anodic Stripping Voltammetry of Cd²⁺, Pb²⁺, Cu²⁺ and Hg²⁺

et al. 2018

View full text Add to dashboard Cite

A novel electrochemical sensor based on glassy carbon electrode (GCE) modified by poly (1,2‐diaminoanthraquinone) (P1,2‐DAAQ) has been developed for individual and simultaneous determination of Cd2+, Pb2+, Cu2+ and Hg2+ using square wave anodic stripping voltammetry (SWASV). P1,2‐DAAQ was characterized by cyclic voltammetry (CV) and scan electron microscope (SEM). Several analytical parameters such as the type of electrolyte solution, polymer film thickness, metal deposition time and deposition potential were investigated and optimized. Optimal conditions were obtained by using five scan cycles for polymer synthesis and 120 seconds at −1.6 V for metal electrodeposition in acetate buffer solution. Good linear responses to Cd2+, Pb2+, Cu2+ and Hg2+ in the concentration range from 0 to 120 μg/L were obtained. The limit of detections (LOD) for simultaneous determination of Cd2+, Pb2+, Cu2+ and Hg2+ were 0.3 μg/L, 0.58 μg/L, 1.94 μg/L and 0.26 μg/L, respectively. The developed method was also applied for their detection in real water samples for which favorable results obtained compared with those obtained using inductively coupled plasma – optical emission spectroscopy (ICP‐OES).

show abstract

Sensitive stripping voltammetry detection of Pb(II) at a glassy carbon electrode modified with an amino-functionalized attapulgite

Cited by 48 publications

References 55 publications

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

Nanohybrid materials from amine functionalization of sepiolite: Preparation, characterization and application as electrode modifiers for the electroanalytical detection of heavy metal ions

Novel Sensor Based on Poly (1,2‐Diaminoanthraquinone) for Individual and Simultaneous Anodic Stripping Voltammetry of Cd²⁺, Pb²⁺, Cu²⁺ and Hg²⁺

Contact Info

Product

Resources

About

Sensitive stripping voltammetry detection of Pb(II) at a glassy carbon electrode modified with an amino-functionalized attapulgite

Cited by 48 publications

References 55 publications

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

Nanohybrid materials from amine functionalization of sepiolite: Preparation, characterization and application as electrode modifiers for the electroanalytical detection of heavy metal ions

Novel Sensor Based on Poly (1,2‐Diaminoanthraquinone) for Individual and Simultaneous Anodic Stripping Voltammetry of Cd2+, Pb2+, Cu2+ and Hg2+

Contact Info

Product

Resources

About

Novel Sensor Based on Poly (1,2‐Diaminoanthraquinone) for Individual and Simultaneous Anodic Stripping Voltammetry of Cd²⁺, Pb²⁺, Cu²⁺ and Hg²⁺