Solvothermal synthesis of organoclay/Cu-MOF composite and its application in film modified GCE for simultaneous electrochemical detection of deoxyepinephrine, acetaminophen and tyrosine

Mouafo-Tchinda, Edwige; Kemmegne‐Mbouguen, Justin Claude; Nanseu‐Njiki, Charles Péguy; Langmi, Henrietta W.; Kowenje, Chrispin O.; Musyoka, Nicholas M.; Mokaya, Robert

doi:10.1039/d3ra03850e

Cited by 9 publications

(2 citation statements)

References 67 publications

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“…These zeolites were successfully used to modify carbon paste electrodes for electrochemical sensing. In addition, organo-functionalized clays (type 2 : 1) were prepared and the obtained organoclays were used for the synthesis of two organoclay/UiO-66 composites exhibiting large surface area and electrocatalytic properties when used as electrode modifiers [15,16].…”

Section: Porous Materials Composites For Electrochemical Sensingmentioning

confidence: 99%

Capacity building in porous materials research for sustainable energy applications

Langmi,

Musyoka,

Kemmegne-Mbouguen

et al. 2024

Interface Focus.

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The project aimed to develop porous materials for sustainable energy applications, namely, hydrogen storage, and valorization of biomass to renewable fuels. At the core of the project was a training programme for Africa-based researchers in (i) the exploitation of renewable locally available raw materials; (ii) the use of advanced state-of-the-art techniques for the design and synthesis of porous materials (zeolites and metal-organic frameworks (MOFs)) for energy storage; and (iii) the valorization of sustainable low-value feedstock to renewable fuels. We found that compaction of the UiO-66 MOF at high pressure improves volumetric hydrogen storage capacity without any loss in gravimetric uptake, and experimentally demonstrated the temperature-dependent dynamic behaviour of UiO-66, which allowed us to propose an activation temperature of ≤ 150°C for UiO-66. Co-pelletization was used to fabricate UiO-66/nanofibre monoliths as hierarchical porous materials with enhanced usable (i.e. deliverable) hydrogen storage capacity. We clarified the use of naturally occurring kaolin as a source of silica and alumina species for zeolite synthesis. The kaolin-derived zeolite X was successfully used as a catalyst for the transesterification of Jatropha curcas oil (from non-edible biomass) to biodiesel. We also prepared porous composites (i.e. carbon/UiO-66, organoclay/UiO-66 and zeolite/carbon) that were successfully applied in electrochemical sensing.

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Section: Porous Materials Composites For Electrochemical Sensingmentioning

confidence: 99%

Capacity building in porous materials research for sustainable energy applications

Langmi,

Musyoka,

Kemmegne-Mbouguen

et al. 2024

Interface Focus.

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“…20 Numerous works have been devoted to enhancing electron transfer and reducing the overpotential for their electrochemical oxidation, thus favoring their simultaneous detection using chemically modified electrodes. 21 Alongside the electrochemical method for the quantification of DA, AC and Trp, several other methods, including chromatography, spectroscopy and electrophoresis, have been successfully utilized. 22–29 Generally, these methods require laborious sample preparation and organic solvents and demand expensive equipment; consequently, they are costly and not so suitable for routine analysis.…”

Section: Introductionmentioning

confidence: 99%

Glassy carbon electrode modified with a film of tetraruthenated nickel(ii) porphyrin located in natural smectite clay's interlayer for the simultaneous sensing of dopamine, acetaminophen and tryptophan

Kemmegne-Mbouguen,

Tamne,

Ngo-Ngwem

et al. 2024

RSC Adv.

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Electrochemical Behaviour and Sensing of Chlorpromazine at Polymer‐Free Kaolin‐Based Nanosodalite and Nanosodalite‐Graphene Foam Film modified Glassy Carbon Electrodes

Parfait Tchoumi,

Ghislain Fotsop,

Bertrand Tamne

et al. 2024

ChemElectroChem

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A nanosodalite (SOD) was synthesized utilizing Cameroonian kaolin and then used to prepare a nanocomposite (SOD‐GF) with graphene foam (GF). The as‐synthesized materials were characterized using X‐ray diffractometry (XRD), Fourier transform‐infrared (FT‐IR) spectroscopy, N2 adsorption‐desorption and scanning electron microscopy coupled with emission dispersive X‐ray (SEM/EDX). The results show a pure sodalite with high degree of crystallinity with crystallite size and BET surface area of 38.3 nm and 22 m2/g, respectively. The composite's characterization revealed a well‐integrated material in which the structural integrity of each material is maintained, its surface area being 4‐fold that of pristine SOD. Stable SOD and SOD‐GF modified glassy carbon electrode (GCE) were prepared by drop coating without a binder and utilized to study the electrochemistry of chlorpromazine (CPZ) in acidic, neutral and basic pHs. It appeared that (i) CPZ's electrochemical oxidation was a two‐step one‐electron process at SOD/GCE and a one‐step two‐electron process at SOD‐GF/GCE and (ii) the electrochemical reaction mechanism was an EEC mechanism at SOD/GCE while at SOD‐GF/GCE the mechanism was EEC at pH<4 and EC for greater pH. SOD/GCE and SOD‐GF/GCE were used to sense CPZ within CPZ's concentration ranging from 0.5‐30 μM with low detection limits.

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Solvothermal synthesis of organoclay/Cu-MOF composite and its application in film modified GCE for simultaneous electrochemical detection of deoxyepinephrine, acetaminophen and tyrosine

Abstract: Solvothermal synthesis of organoclay/copper MOF composite for film modified glassy carbon electrodes and their application to the electrochemical sensing of DXEP, AC and TYR.

Cited by 9 publications

References 67 publications

Capacity building in porous materials research for sustainable energy applications

Capacity building in porous materials research for sustainable energy applications

Glassy carbon electrode modified with a film of tetraruthenated nickel(ii) porphyrin located in natural smectite clay's interlayer for the simultaneous sensing of dopamine, acetaminophen and tryptophan

Electrochemical Behaviour and Sensing of Chlorpromazine at Polymer‐Free Kaolin‐Based Nanosodalite and Nanosodalite‐Graphene Foam Film modified Glassy Carbon Electrodes

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