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Abstract <p>Activated carbons (AC) have been effectively produced from rice husk using the following activation methods: i) physical activation; ii) chemical activation. We prepared ACs using CO<sub>2</sub> gas as an activator under various activation temperatures for a time period of 1 hour. This study investigated the fabrication of activated carbon (AC) from rice husk using a chemical activation method that used H<sub>3</sub>PO<sub>4</sub>, KOH, and ZnCl<sub>2</sub>. This study looked at how to make activated carbon (AC) from rice husk utilizing a chemical activation technique that included H<sub>3</sub>PO<sub>4</sub>, KOH, and ZnCl<sub>2</sub>.The influence of several parameters, for instance carbonization temperature, carbonization duration and concentrations, on ACs BET surface area was investigated. Rice husk activated carbons (RHAC) were described by thermo-gravimetric investigation (TGA), Scanning Electron microscopy (SEM), Brunauer Emmett Teller (BET) surface and N<sub>2</sub> adsorption. Both techniques of activating activated carbon have high adsorption characteristics. During this, adsorption parameters for utilizing the GC-MS method to analyze gasoline. The agricultural wastes employed in the study have been demonstrated to be possible precursors for the cost-effective on-site generation of activated carbon, thereby easing the problem of agricultural waste management.</p>

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Investigation of Adsorption Properties of Agro-Waste-Derived Activated Carbons Prepared via Various Physicochemical Activation Methods for Gasoline, Iodine, and Methylene Blue

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • K. Subba Rao,
  • L. Vijayalakshmi,
  • M. V. Ramachandra Rao,
  • R. Vijay,
  • T. Kamakshi,
  • M. Nagarjuna,
  • M. Srinivasa Rao,
  • Jiseok Lim,
  • Mohammad Altaf

摘要

Abstract

Activated carbons (AC) have been effectively produced from rice husk using the following activation methods: i) physical activation; ii) chemical activation. We prepared ACs using CO2 gas as an activator under various activation temperatures for a time period of 1 hour. This study investigated the fabrication of activated carbon (AC) from rice husk using a chemical activation method that used H3PO4, KOH, and ZnCl2. This study looked at how to make activated carbon (AC) from rice husk utilizing a chemical activation technique that included H3PO4, KOH, and ZnCl2.The influence of several parameters, for instance carbonization temperature, carbonization duration and concentrations, on ACs BET surface area was investigated. Rice husk activated carbons (RHAC) were described by thermo-gravimetric investigation (TGA), Scanning Electron microscopy (SEM), Brunauer Emmett Teller (BET) surface and N2 adsorption. Both techniques of activating activated carbon have high adsorption characteristics. During this, adsorption parameters for utilizing the GC-MS method to analyze gasoline. The agricultural wastes employed in the study have been demonstrated to be possible precursors for the cost-effective on-site generation of activated carbon, thereby easing the problem of agricultural waste management.