Orange peel magnetic activated carbon for removal of acid orange 7 dye from water

BET surface area

The carbonization temperature impact on preparation of OPAC was investigated at pyrolysis temperatures ranged between 700 and 900 °C. As depicted in Table 1, the specific surface area and pore volume exhibit a noteworthy trend in response to varying carbonization temperatures. At a pyrolysis temperature of 700 °C (Fig. 1a), the OPAC sample displayed the highest specific surface area of 1512.5 m²/g and pore volume of 0.8854 cm³/g. This can be attributed to the ideal conditions for carbonization at this temperature, facilitating the optimal development of micropores…