Enzyme‐free <scp>H<sub>2</sub>O<sub>2</sub></scp> Sensing at <scp>ZnO</scp>–Graphene Oxide‐modified Glassy Carbon Electrode

Kim, Ji Dang; Choi, Hyun Chul

doi:10.1002/bkcs.12153

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Bulletin Korean Chem Soc

2020

DOI: 10.1002/bkcs.12153

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Enzyme‐free H₂O₂ Sensing at ZnO–Graphene Oxide‐modified Glassy Carbon Electrode

Ji Dang Kim

Hyun Chul Choi

Abstract: ZnO‐GO was fabricated via sol‐gel method for hydrogen peroxide chemical sensor. ‐ The linear response range and limit of detection were 3.2 – 195 μM and 1.1 μM. ‐ Excellent selectivity and operational stability are achieved.

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Synthesis of Water-Dispersed Sulfobetaine Methacrylate–Iron Oxide Nanoparticle-Coated Graphene Composite by Free Radical Polymerization

2022

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Research on the synthesis of water-soluble polymers has accelerated in recent years, as they are employed in many bio-applications. Herein, the synthesis of poly[2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (PSB) by free radical polymerization in a sonication bath is described. PSB and iron oxide nanoparticles (IONPs) were simultaneously stabilized on the graphene surface. Graphene surfaces with PSB (GPSB) and graphene surfaces with PSB and IONPs (GPSBI) were prepared. Since PSB is a water-soluble polymer, the hydrophobic nature of graphene surfaces converts to hydrophilic nature. Subsequently, the prepared graphene composites, GPSB and GPSBI, were well-dispersed in water. The preparation of GPSB and GPSBI was confirmed by X-ray diffraction, Raman spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. The impacts of PSB and IONPs on the graphene surfaces were studied systematically.

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Synthesis of Water-Dispersed Sulfobetaine Methacrylate–Iron Oxide Nanoparticle-Coated Graphene Composite by Free Radical Polymerization

2022

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Enzyme‐free H₂O₂ Sensing at ZnO–Graphene Oxide‐modified Glassy Carbon Electrode

Abstract: ZnO‐GO was fabricated via sol‐gel method for hydrogen peroxide chemical sensor. ‐ The linear response range and limit of detection were 3.2 – 195 μM and 1.1 μM. ‐ Excellent selectivity and operational stability are achieved.

Cited by 1 publication

References 33 publications

Synthesis of Water-Dispersed Sulfobetaine Methacrylate–Iron Oxide Nanoparticle-Coated Graphene Composite by Free Radical Polymerization

Synthesis of Water-Dispersed Sulfobetaine Methacrylate–Iron Oxide Nanoparticle-Coated Graphene Composite by Free Radical Polymerization

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Enzyme‐free H2O2 Sensing at ZnO–Graphene Oxide‐modified Glassy Carbon Electrode

Abstract: ZnO‐GO was fabricated via sol‐gel method for hydrogen peroxide chemical sensor. ‐ The linear response range and limit of detection were 3.2 – 195 μM and 1.1 μM. ‐ Excellent selectivity and operational stability are achieved.

Cited by 1 publication

References 33 publications

Synthesis of Water-Dispersed Sulfobetaine Methacrylate–Iron Oxide Nanoparticle-Coated Graphene Composite by Free Radical Polymerization

Synthesis of Water-Dispersed Sulfobetaine Methacrylate–Iron Oxide Nanoparticle-Coated Graphene Composite by Free Radical Polymerization

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Enzyme‐free H₂O₂ Sensing at ZnO–Graphene Oxide‐modified Glassy Carbon Electrode