High Current Transport of TiO2/C-dots@NiO Incorporated Graphene Nanocomposite as Smart Electrode for Diazinon Pesticide Detection

IF 2.7 4区化学 Q3 CHEMISTRY, PHYSICAL

Electrocatalysis Pub Date : 2024-11-04 DOI:10.1007/s12678-024-00906-6

Zul Arham, Andi Khaeruni R., Maulidiyah Maulidiyah, Gusti Ayu Kade Sutariati, La Ode Santiaji Bande, Alimin Alimin, Halimahtussaddiyah Ritonga, Muhammad Nurdin

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引用次数: 0

Abstract

Graphene electrodes incorporated TiO₂/C-dots@NiO (G-TCN) nanocomposites have been successfully synthesized and investigated for their performance in detecting the pesticide diazinon (DZN). The synthesis begins with preparing a C-dots solution hydrothermally using tolaki citrus extract (Citrus sp.) as a precursor. The incorporation was continued hydrothermally between C-dots, Ni (II), and TiO₂ to obtain the TiO₂/C-dots@NiO (TCN) nanocomposites. The results of the morphological study illustrate that the TCN nanocomposite is composed of round particles with a uniform size between 180 and 200 nm. The XRD diffractogram pattern describes the overlapping interactions between the elements that make up the nanocomposites. The electrochemical performance in the Fe(CN)₆³⁻/Fe(CN)₆⁴⁻ solution system illustrates the reversible redox reaction of G-TCN with a value of ∆E_p = 0.08 V. DZN detection showed superior results. Based on the cyclic voltammogram, DZN experienced a reduction at a potential of 0.65 V. The linearity test showed an LOD value of 0.09 μg/mL. In other tests, G-TCN showed good stability and reliability, with an RSD of 11.90% and 7.44%, respectively. The results reported in this work will be a reference for researchers in developing voltammetric sensors for pesticide residue detection.

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来源期刊

Electrocatalysis CHEMISTRY, PHYSICAL-ELECTROCHEMISTRY

CiteScore

4.80

自引率

6.50%

发文量

审稿时长

>12 weeks

期刊介绍： Electrocatalysis is cross-disciplinary in nature, and attracts the interest of chemists, physicists, biochemists, surface and materials scientists, and engineers. Electrocatalysis provides the unique international forum solely dedicated to the exchange of novel ideas in electrocatalysis for academic, government, and industrial researchers. Quick publication of new results, concepts, and inventions made involving Electrocatalysis stimulates scientific discoveries and breakthroughs, promotes the scientific and engineering concepts that are critical to the development of novel electrochemical technologies. Electrocatalysis publishes original submissions in the form of letters, research papers, review articles, book reviews, and educational papers. Letters are preliminary reports that communicate new and important findings. Regular research papers are complete reports of new results, and their analysis and discussion. Review articles critically and constructively examine development in areas of electrocatalysis that are of broad interest and importance. Educational papers discuss important concepts whose understanding is vital to advances in theoretical and experimental aspects of electrochemical reactions.