One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

Haodong Shen; Jun Liu; Peng Pan; Xiaoping Yang; Zhengchun Yang; Peng Li; Guanying Liu; Xiaodong Zhang; Jie Zhou

doi:10.1016/j.synthmet.2022.117235

One-step synthesis of nanosilver embedding laser-induced graphene for H₂O₂ sensor

Synth Met. 2023 Mar:293:117235. doi: 10.1016/j.synthmet.2022.117235. Epub 2022 Dec 21.

Authors

Haodong Shen¹, Jun Liu², Peng Pan¹, Xiaoping Yang¹, Zhengchun Yang¹, Peng Li¹, Guanying Liu¹, Xiaodong Zhang¹, Jie Zhou¹

Affiliations

¹ School of Integrated Circuit Science and Engineering, Advanced Materials and Printed Electronics Center, Tianjin Key Laboratory of Film Electronic & Communication Devices, Tianjin University of Technology, Tianjin 300384, China.
² School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, China.

Abstract

During the novel coronavirus pandemic, hydrogen peroxide (H₂O₂) played an important role as a disinfectant. However, high concentrations of H₂O₂ can also cause damage to the skin and eyes. Therefore, the quantitative and qualitative detection of H₂O₂ is an important research direction. In this work, we report a one-step laser-induced synthesis of graphene doped with Ag NPs composites. It directly trims screen printed electrodes (SPE). Firstly, we did the timekeeping current method (CA) test on H₂O₂ using a conventional platinum sheet as the counter electrode, and obtained linear ranges of 1-110 μM and 110-800 μM with a sensitivity of 118.7 and 96.3 μAmM^-1cm^-2 and a low detection limit of (LOD) 0.24 μM and 0.31 μM. On this basis we have also achieved a good result in CA testing using Screen printed carbon electrodes (SPCE), laying the foundation for portable testing. The sensor has excellent interference immunity and high selectivity.

Keywords: Ag NPs; Electrochemical sensor; Hydrogen peroxide; Laser-induced graphene.