以线型酚醛树脂为碳源,通过形成钇-酚醛树脂配合物和水蒸气活化的方法制备了具有较高中孔率的活性炭.利用红外光谱(IR)、热重分析(TG)、氮气吸脱附曲线、扫描电镜(SEM)和X射线衍射(XRD)对所制钇-酚醛树脂配合物及相应活性炭进行了表征.结果表明:钇离子与嫁接了甲基丙烯酸甲酯的酚醛树脂之间形成钇-酚醛树脂配合物,其相应活性炭具有典型中孔炭的特征,且中孔率高达88%.钇-酚醛树脂配合物的形成,明显提高了钇元素的分散程度和钇元素的催化效率.同时,钇-酚醛树脂配合物的形成,有助于改善酚醛树脂基活性炭的孔结构和孔径分布,尤其对提高活性炭的中孔率有显著的作用.
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