Eco-friendly modified carbon paste electrode by Bigarreau Burlat kernel shells for simultaneous trace detection of cadmium, lead, and copper

Hermouche, Lina; Aqil, Younes; Abbi, Khaoula; Hamdouni, Youssra El; Ouanji, Fatiha; Hajjaji, Souad El; Mahi, Mohammed El; Lotfi, El Mostapha; Labjar, Najoua

doi:10.1016/j.cdc.2020.100642

Cited by 15 publications

(8 citation statements)

References 43 publications

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“…Figure 5 a,b exhibit the voltammograms of the BT material with a scan rate variation from 20 mV s −1 to 100 mV s −1 . We observed an increase in the redox current intensity by increasing the scan rate, in accordance with the literature [ 40 , 41 ]. Furthermore, the BT-based electrode demonstrated a larger electroactive zone in wastewater than in the denoised medium, suggesting a potential application for wastewater treatment and power generation in MFC devices.…”

Section: Resultssupporting

confidence: 92%

BaTiO3 Functional Perovskite as Photocathode in Microbial Fuel Cells for Energy Production and Wastewater Treatment

et al. 2023

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Microbial fuel cells (MFCs) provide new opportunities for the sustainable production of energy, converting organic matter into electricity through microorganisms. Moreover, MFCs play an important role in remediation of environmental pollutants from wastewater with power generation. This work focuses on the evaluation of ferroelectric perovskite materials as a new class of non-precious photocatalysts for MFC cathode construction. Nanoparticles of BaTiO3 (BT) were prepared and tested in a microbial fuel cell (MFC) as photocathode catalytic components. The catalyst phases were synthesized, identified and characterized by XRD, SEM, UV–Vis absorption spectroscopy, P-E hysteresis and dielectric measurements. The maximum absorption of BT nanoparticles was recorded at 285 nm and the energy gap (Eg) was estimated to be 3.77 eV. Photocatalytic performance of cathodes coated with BaTiO3 was measured in a dark environment and then in the presence of a UV–visible (UV–Vis) light source, using a mixture of dairy industry and domestic wastewater as a feedstock for the MFCs. The performance of the BT cathodic component is strongly dependent on the presence of UV–Vis irradiation. The BT-based cathode functioning under UV–visible light improves the maximum power densities and the open circuit voltage (OCV) of the MFC system. The values increased from 64 mW m−2 to 498 mW m−2 and from 280 mV to 387 mV, respectively, showing that the presence of light effectively improved the photocatalytic activity of this ceramic. Furthermore, the MFCs operating under optimal conditions were able to reduce the chemical oxygen demand load in wastewater by 90% (initial COD = 2500 mg L−1).

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Section: Resultssupporting

confidence: 92%

BaTiO3 Functional Perovskite as Photocathode in Microbial Fuel Cells for Energy Production and Wastewater Treatment

et al. 2023

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“…The electrode showed stability and selectivity in detecting these metals in seawater, tap water and industrial wastewater samples. The BBKS-CPE molded electrode can be applied as an environmentally friendly and low-cost electrochemical sensor [57]. Square-pulse stripping voltammetry simultaneously detected the cations of these metals in water samples, with a microelectrode molded with high-density carbon nanotube fiber rods (HD-CNTf).…”

Section: Simultaneous Determination Of Pb CD and Cumentioning

confidence: 99%

Novel Aspects in the Voltametric Determination of Heavy Metals: A Minireview

Chatziathanasiou,

Girousi

2024

Preprint

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Heavy metals represent a class of chemical elements that includes metalloids, bases and transition metals, lanthanides and actinides. They are distinguished for their toxicity in small concentrations and for their negative effects on the environment and human health. They are present in various samples, mainly in water, industrial waste and food. The determination of heavy metals is carried out mainly by analytical methods, using spectroscopy, spectrometry and electroanalysis, while studies are being carried out for the development of new and faster methodologies and techniques for their analysis, with particular emphasis on voltammetry. This review deals with the determination of heavy metals mainly in environmental samples (water) using voltammetry. In particular, the methods of their determination are evaluated in terms of sensitivity, selectivity and applicability.

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“…A wide range of green modifiers has been employed, including biopolymers, 35,37,61,69,[71][72][73]87,89,92,123,124,175,186,187,197,[201][202][203][204][205] plant extracts, 23,66,104,[120][121][122]125,127,313 natural products, 126,219,[314][315][316][317][318] biomass, 157,289,319 and DNA. 293,320,321 It is important to emphasize that all the different green modifiers have been either added to or combined with other modifiers to achieve the desired electroanalytical performance of the newly developed electrodes through the synergistic effect.…”

Section: Environmentally Friendly Compounds and Natural Products As E...mentioning

confidence: 99%

“…In the last five years, several research groups have continued to explore the inclusion of various environmentally friendly (green) modifiers in the development of new electrodes for trace metal analysis. 23,35,37,61,66,69,71–73,87,89,92,104,110,120–127,157,175,186,187,197,201–205,219,289,293,313–321 Table S6 in the ESI† summarizes the main findings of the research studies published in the last five years reporting on the use of different green modifiers for various types of electrodes employed in the determination of trace heavy metals.…”

Section: Environmentally Friendly Compounds and Natural Products As E...mentioning

confidence: 99%

“…314 Spent coffee grounds, 315 walnut shells, 317 and sugarcane 219 were subjected to pyrolysis to obtain biochar, which, combined with other compounds, was used to modify GCEs or CPEs for the determination of Cu 2+ , Pb 2+ , Cd 2+ , and Hg 2+ ions. No prior chemical pretreatment of Bigarreau Burlat kernels shells 316 and mango seed kernels 318 was reported. Zhang et al 110 obtained porous activated carbon from waste pomelo peels through a KOH activation method followed by carbonization at 700 °C.…”

Section: Environmentally Friendly Compounds and Natural Products As E...mentioning

confidence: 99%

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Recent advances in the modification of electrodes for trace metal analysis: a review

Xhanari,

Finšgar

2023

Analyst

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Eco-friendly modified carbon paste electrode by Bigarreau Burlat kernel shells for simultaneous trace detection of cadmium, lead, and copper

Cited by 15 publications

References 43 publications

BaTiO3 Functional Perovskite as Photocathode in Microbial Fuel Cells for Energy Production and Wastewater Treatment

BaTiO3 Functional Perovskite as Photocathode in Microbial Fuel Cells for Energy Production and Wastewater Treatment

Novel Aspects in the Voltametric Determination of Heavy Metals: A Minireview

Recent advances in the modification of electrodes for trace metal analysis: a review

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