以竹材加工中产生的锯屑为原料,经磷酸浸渍48h～72h后,在200℃条件下热解2h得到竹炭,将其用发烟硫酸在100℃下磺化2h得到具有酸催化功能的磺化竹炭.XRD和FTIR分析表明:磺化竹炭是一种具有多环芳烃结构的无定型固体酸功能材料.采用吡啶吸附红外漫反射法确定表面酸位类型为质子酸.用离子交换-酸碱滴定法测得磺化竹炭的酸量为2.02mmol·g-1.在催化多种醛、酮与乙二醇的缩合反应中,磺化竹炭具有良好的催化活性和重复使用性能.
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