簇状氧化锌纳米棒的合成及其光催化性能研究

采用醋酸锌和氨水为原料、水作为溶剂,以水热法在80℃条件下反应20 h制备出了簇状氧化锌纳米棒,用XRD、SEM分别分析了制备产物的物相和形貌。以ZnO纳米棒为光催化剂对有机染料甲基橙进行了光催化降解实验,研究了甲基橙溶液初始浓度和催化剂添加量对光催化的影响。结果表明,合成的氧化锌纳米棒均为六方晶系铅锌矿结构;产物为从中心发散的簇状纳米棒结构,纳米棒直径分布均匀且分散性好,每个簇由几十个纳米棒组成,每个纳米棒平均直径约为150 nm,长度约为5μm。制备的ZnO有良好的光催化性能。

Study on preparation and photocatalytic activity of ZnO nanorods-clusters

With zinc acetate and ammonia as reactants and water as solvent,ZnO nanorods(cluster)was prepared at 80 ℃ for 20 h by hydrothermal method.The physical phase and morphology of product were analyzed by XRD,SEM,respectively.Effects of solution initial concentration and ZnO powder quantum on the decomposing of methyl orange by photocatalysis were studied where MO was used as experimental object.The ZnO nanorods-clusters of the synthesized ZnO showed hexagonal wurtzite structure.The products have a morphology of nanorods-cluster which is radiation from center and each nanorod has an average diameter of about 150 nm and length of about 5 μm.The ZnO nanorods-clusters has good photocatalytic activity.