【摘要】 以废弃的阳离子交换树脂为原料,在不同的炭化温度下,经过炭化活化工序,制备得炭化树脂(CA)。元素分析和红外光谱表明离子交换树脂表面的磺酸基经高温炭化-活化处理后,绝大部分发生热解反应,并生成了一定量的耐热砜基。炭化树脂的BET比表面积可达340.1m2/g。通过水溶液中苯酚吸附实验的初步结果表明,对苯酚的吸附量可达57.60mg苯酚/g炭化树脂,苯酚吸附量和BET比表面积成良好的线性关系;在实验研究的浓度范围内,可以用Langmuir方程很好的拟合吸附平衡数据。更多还原

【Abstract】 Carbonaceous adsorbents (CA) were prepared by carbonizing waste cation-exchange resins in different temperature and followed by CO2 activation. The results of elementary analysis and FT-IR indicated sulfonic groups in resins’ inner surface were almost decomposed to heat-resistant sulfone groups after pyrolysis. The BET surface area of CA could achieve 340.1m2/g. Also, the study of adsorbing phenol in aqueous was carried out. The result showed the adsorption capacity for phenol was about 57.60mg/g, and there was a good linear correspondence between the adsorption capacity for phenol and BET surface area; in the concentration of phenol ranged from 25.5mg/L to 600.0mg/L, adsorption isotherm could be fitted well into Langmuir equation.更多还原