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Effect of Preparation Process on the Physicochemical Properties of Activated Carbon Prepared from Corn Stalks

Author

Listed:
  • Beibei Xu

    (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China)

  • Min Chang

    (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China)

  • Chengguo Fu

    (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China)

  • Jiale Han

    (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China)

  • Yahui Wang

    (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China)

  • Yipeng Feng

    (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
    Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China’s Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China)

  • Zhiping Zhang

    (Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China’s Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China)

Abstract

The preparation of activated carbon (AC) from agricultural and forestry wastes is one of the effective methods for resource utilization. In this study, AC was prepared from corn stalk (CS) by pyrolysis, one-step activation, and two-step activation to determine the optimum preparation method. Based on this, a single-factor design was used to investigate the influence of activating agents (KOH, NaOH, KOH/NaOH), activation temperatures (600, 700, 800 °C), and activation times (60, 90, 120 min) on the physicochemical properties of AC. The physicochemical properties of AC were characterized by Thermal gravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Cyclic voltammetry (CV). The results showed that the AC obtained by the one-step activation method (KOH, 800 °C, 120 min) exhibited a rich pore structure and excellent electrochemical properties (I pa = 159.8 μA, I pc = −169.5 μA). However, for the two-step activation method, the AC exhibited a poor pore structure and electrochemical properties (I pa = 130.8 μA, I pc = −129.9 μA). In addition, one-step activation provides high-quality AC in a shorter activation time than two-step activation.

Suggested Citation

  • Beibei Xu & Min Chang & Chengguo Fu & Jiale Han & Yahui Wang & Yipeng Feng & Zhiping Zhang, 2024. "Effect of Preparation Process on the Physicochemical Properties of Activated Carbon Prepared from Corn Stalks," Agriculture, MDPI, vol. 14(3), pages 1-16, February.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:3:p:392-:d:1349185
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    References listed on IDEAS

    as
    1. Vilaysit Thithai & Xuanjun Jin & Muhammed Ajaz Ahmed & Joon-Weon Choi, 2021. "Physicochemical Properties of Activated Carbons Produced from Coffee Waste and Empty Fruit Bunch by Chemical Activation Method," Energies, MDPI, vol. 14(11), pages 1-16, May.
    2. Sun, Shengnan & Yu, Qiongfen & Li, Ming & Zhao, Hong & Wu, Chunxiang, 2019. "Preparation of coffee-shell activated carbon and its application for water vapor adsorption," Renewable Energy, Elsevier, vol. 142(C), pages 11-19.
    3. Dang, Han & Xu, Runsheng & Zhang, Jianliang & Wang, Mingyong & Ye, Lian & Jia, Guoli, 2023. "Removal of oxygen-containing functional groups during hydrothermal carbonization of biomass: Experimental and DFT study," Energy, Elsevier, vol. 276(C).
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