Synthesis, Characterization, and Adsorption Properties of Highly Microporous Structured Activated Carbon

Abstract

The aim of this study is to synthesize activated carbon with high surface area from peach kernel shells which is an agricultural waste. In this study, activated carbon synthesis was carried out by using CO2 at 2 different temperatures (800 and 900 °C) with physical activation from products carbonized at 4 different temperatures (300, 400, 500, and 600 °C) and 2 different N2 gas flow rates (100 and 500 mL/min). After carbonization, solid, liquid, and gas yields of the materials were calculated. The surface area of activated carbons synthesized was calculated by BET analysis and the differences in the surface area were shown by changing the synthesis conditions. Surface areas vary between 340.15 and 686.74 m2/g. In samples pores formed were examined by DFT plus. It was found that most of these pores consist of micropores. Also, the structures of the samples were examined with SEM and XRD analyses. Methylene blue removal of the synthesized samples was studied and the results were compared.