Preparation and Characterization of Husk Based Carbons: Effect of the Temperature

This study on the production of activated carbons (AC) prepared through chemical activation using sodium hydroxide solution consisted to evaluate the effect of temperature using two values (500°C and 650°C). The characterization of the AC were carried out using Brunauer-Emmett-Teller (BET) experiments, Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and Fourier Transform- Infrared (FT-IR). A comparison of pore characteristics with UIPAC’s norms showed that all the produced carbons were mesoporous and both carbons had low surface areas of 12.13 and 29.45 m2/g for AC1 and AC2, respectively; AC1 and AC2 being AC prepared at 500°C and 650°C, respectively. Low surface areas were due to the activation solution and the temperature of pyrolysis of biomass which affect strongly the characteristics of carbon. At Zero Point Charge, pH of both carbons is too closed and basic indicating their ability to fix cationic species on their surface.

کلیدواژه ها:

Activated carbon ، Chemical activation ، Rice husk ، Temperature ، Surface area