Bimetal (Ni, Fe) Nanoalloy Implanted into Cypress Leaves Derived Biochar for Cu2+ Heavy Metal Detection

Krishnamachari, Moorthy; Kumar, Mohanraj; Chang, Jih-Hsing

doi:10.1007/978-981-97-0948-9_17

Lecture Notes in Civil Engineering

2024

DOI: 10.1007/978-981-97-0948-9_17

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Bimetal (Ni, Fe) Nanoalloy Implanted into Cypress Leaves Derived Biochar for Cu2+ Heavy Metal Detection

Moorthy Krishnamachari,

Mohanraj Kumar,

Jih-Hsing Chang

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Electrochemical Detection of Arsenic Using Eco-Friendly Zeolite-Graphite Composite Electrode

Ait Baha,

Idouhli,

Tabit

et al. 2024

ECS J. Solid State Sci. Technol.

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This paper presents an innovative and stable electrochemical sensor using zeolite and graphite for the reliable and accurate detection of arsenic(V). The zeolite materials were hydrothermally synthesized using coal fly ash and fumed silica by-products under specific environments (1.5 M NaOH, L/(Si/Al) ratio of 40, 120°C, and 24 hours), addressing environmental concerns related to wastes managment. The performance of the zeolite-graphite modified electrode (ZGME) was evaluated using voltammetric and impedance techniques at potentials between 1.2 V and -1.2 V (vs. SCE) and a frequency range of 100 kHz to 10 mHz, respectively. The results showed that the incorporation of zeolite for the first time offered notable advantages, such as affordability, simplicity, and improved oxidation-reduction current and peak resolution for arsenic. The ZGME effectively detected As(V) under neutral conditions using a phosphate buffer solution, with a concentration range of 1 x 10-3 to 1 x 10-6 mol.L-1. The sensor achieved a detection limit of 3 μmol.L-1, a quantification limit of 5 μmol.L-1, a sensitivity of 0.28 μA/μM.cm2, and exhibited good reproducibility, opening up new potential for portable zeolite-based electrochemical sensors. Moreover, this research pioneers the use of zeolite as a graphite modifier.

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Electrochemical Detection of Arsenic Using Eco-Friendly Zeolite-Graphite Composite Electrode

Ait Baha,

Idouhli,

Tabit

et al. 2024

ECS J. Solid State Sci. Technol.

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show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

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Bimetal (Ni, Fe) Nanoalloy Implanted into Cypress Leaves Derived Biochar for Cu2+ Heavy Metal Detection

Cited by 1 publication

References 25 publications

Electrochemical Detection of Arsenic Using Eco-Friendly Zeolite-Graphite Composite Electrode

Electrochemical Detection of Arsenic Using Eco-Friendly Zeolite-Graphite Composite Electrode

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