童晶;夏晓丹;左树锋;

• 1:绍兴文理学院应用化学研究所

摘要(Abstract)：

利用高温高压一步法合成系列Al Mn-复合柱化剂,该方法的步骤、物料消耗等较传统制备方法均大大减少,可大大降低生产成本及减少对环境的污染。通过离子交换合成系列Al Mn复合柱撑粘土(Al Mn-PILC)。改变Al/Mn摩尔比、老化温度、老化时间,可调控Al Mn-复合柱化剂的结构,从而影响Al Mn-PILC的结构性能(包括比表面积、孔体积、孔径、层间距等)。通过XRD,N2吸附,高分辨电镜及程序升温还原等实验对材料的结构及性能进行了表征。结果表明:经550℃焙烧4 h后,Al Mn-PILC的比表面积和孔体积可达174.2²46.7 m2·g-1和0.126246.7 m2·g-1和0.126⁰.158 cm3·g-1,层间距可达1.85 nm。经柱撑改性合成的Al Mn-PILC,其负载Cr Ce催化剂对氯苯的催化降解性能远高于原土(Nammt)和单核Al-PILC的,尤其以Cr Ce(9∶1)/Al Mn-PILC的催化活性最佳,在250℃时可完全降解低浓度的氯苯,是一类性能优异的用于有机物催化降解的多孔材料。

关键词(KeyWords)： AlMn-柱撑粘土;一步水热法;表征;催化降解;CVOC;稀土

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(21203124);; 绍兴市科技局项目(2012B70023);; 绍兴市大学生科技创新项目

作者(Authors): 童晶;夏晓丹;左树锋;

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