【摘要】 以CO₂为活化气氛,通过一步快速热解活化法从黑山煤粉与生物质混合物中制取活性炭。讨论了不同质量比率、活化温度和CO₂浓度对活性炭比表面积的影响。通过N₂吸附（BET）、扫描电镜（SEM）、拉曼光谱（Raman）和红外光谱（FTIR）对活性炭的性能进行了表征。确定了制备活性炭的最佳条件为活化温度900℃、质量比1、CO₂体积分数30%、活化时间120min时,活性炭的比表面积和孔容最大,分别为901m²/g和0.39cm³/g。最后,用乙酸乙酯吸附量验证了其吸附性能,最大累积吸附量为766.51mg/g。更多还原

【Abstract】 Activated carbon was prepared from the mixture of Heishan coal powder and biomass by one step rapid pyrolysis activation method with CO₂ as activation atmosphere. The effects of different mass ratio, activation temperature and CO₂ concentration on the specific surface area of activated carbon were discussed. The properties of activated carbon were characterized by N₂ adsorption（BET）, scanning electron microscopy（SEM）, Raman spectroscopy（Raman） and infrared spectroscopy（FTIR）. The optimum conditions for preparation of activated carbon were determined as follows: when the activation temperature was 900℃, the mass ratio was 1, the concentration of CO₂ was 30%, and the activation time was 120 min,the specific surface area and pore volume of activated carbon were the largest, which were 910 m²/g and0.39 cm³/g, respectively. The adsorption capacity of activated carbon was verified by the adsorption capacity of ethyl acetate, and the maximum cumulative adsorption capacity was 766.51 mg/g.更多还原