以氯化钴(CoCl2·6H2O)和钼酸铵((NH4)6Mo7O24·4H2O)为原料,通过水解、静电自组装和焙烧制成介孔Co3O4/MoO3,再用NaOH溶解得到介孔Co3O4.用X射线粉末衍射(XRD)、透射电镜(TEM)和比表面及孔隙度分析仪(ASAP)对制备材料进行表征,合成的介孔Co3O4最大BET比表面积为127.4 m2/g,平均孔直径为4 nm.用制备的介孔Co3O4/MoO3和介孔Co3O4为催化剂,亚甲蓝(MB)、罗丹明B(RhB)和甲基橙(MO))为染料废水,以双氧水(H2O2)为氧化剂进行催化降解研究,制备的介孔材料对有机染料均有较高的催化降解活性.
Mesoporous Co3O4 was prepared with the assistance of MoO42-as templating agent at room temperature.X-ray diffraction (XRD), transmission electron microscopy (TEM) and surface area and porosity analyzer (ASAP) were used for characteration of mesoporous Co3O4.It has a high surface area of 127.4 m2/g and a mesoporous structure with an average pore diameter of 3-4 nm.Its catalytic activities were evaluated by the degradation of methyl orange (MO), rhodamine B (RhB) and methylene blue (MB) in aqueous solution with H2O2 as oxidizing agent.
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