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

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.