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- W3172234157 abstract "A novel electrocatalyst, Fe 3 O 4 @Polydopamine - Ag nanocomposite, was successfully synthesized by a facile and environmentally friendly method. Fe 3 O 4 nanoparticles were initially coated with polydopamine (PDA) via self-polymerization. Then, Ag nanoparticles were in situ deposited onto the surface of PDA functionalized Fe 3 O 4 nanoparticles due to the reductive feature of PDA. The as-prepared Fe 3 O 4 @PDA-Ag nanocomposite was characterized by TEM, XRD, XPS and VSM. Moreover, antibacterial tests indicated that the Fe 3 O 4 @PDA-Ag nanocomposite exhibited excellent antibacterial activity against Escherichia coli . For the fabrication of sensor, Fe 3 O 4 @PDA-Ag nanocomposite was firmly immobilized onto the magnetic glassy carbon electrode as a result of the powerful magnetism interaction. The electrochemical behaviors of the sensor were interrogated by cyclic voltammetry and differential pulse voltammetry. The sensor exhibited excellent electrocatalytic activity toward the reduction of H 2 O 2 . In the optimum conditions, the linear response range of the constructed H 2 O 2 sensor was from 0.1 to 17.0 mM with a detection limit of 1.6 μ M (S/N = 3). In addition, the sensor exhibited long-term stability and good reproducibility, which is a promising analytical tool for the detection of real samples." @default.
- W3172234157 created "2021-06-22" @default.
- W3172234157 creator A5071172849 @default.
- W3172234157 creator A5078968152 @default.
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- W3172234157 date "2021-06-01" @default.
- W3172234157 modified "2023-10-16" @default.
- W3172234157 title "Non-Enzymatic Hydrogen Peroxide Sensor Based on Fe<sub>3</sub>O<sub>4</sub>@Polydopamine-Ag Nanocomposite Modified Magnetic Glassy Carbon Electrode" @default.
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- W3172234157 doi "https://doi.org/10.1149/1945-7111/ac0604" @default.
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