摘要
以CuSO4·5H2O和葡萄糖为原料,以13-X型沸石为载体,采用水浴法制备了沸石-Cu2O纳米复合材料.用X射线衍射(XRD)、扫描电镜(FESEM)、X光电子能谱(XPS)对其进行了表征,表明粒径为400nm左右纯的Cu2O微粒均匀地分散在沸石中.以模拟太阳光灯为光源,对亚甲基蓝溶液进行光催化降解实验,在最佳条件下降解1h,降解率可达到99.8%,表明沸石-Cu2O复合材料在可见光区具有良好的催化活性.该催化剂重复使用4次后降解率还比较高,而且依旧保持立方晶型、没有被氧化成CuO,证明所合成的催化剂物理化学性质都比较稳定.
zeolite-cuprous oxide nano-composite material was prepared by the hydrothermal synthesis method using Copper Sulfate Pentahydrate, glucose as raw material and 13-X zeolite as supporter in the solvent of distilled water. Their micro-structures were characterized by using XRD,FESEM and XPS techniques. It has been found that particle size of pure CuzO which is dispersed evenly in zeolite is approximately 400 nm. Simulated sunlight was employed to investigate the photocatalysis behavior of the zeolite-cuprous oxide samples. Under optimal conditions for 1 h, the decolorization efficiencies of methylene blue can reached 99. 8%, which proves that sample has a higher adsorption capacity in visible solar. Recycling use of the catalyst revealed that Cu2O still has a high photocatalytic efficiency when repeatedly used for four times. Cu2O nanoparticles still kept its cubic crystal phase, and no sample oxidized to be CuO after the photocatalysis which showed that it has stable physical and chemical properties
出处
《东北师大学报（自然科学版）》
CAS
CSCD
北大核心
2013年第3期92-96,共5页
Journal of Northeast Normal University(Natural Science Edition)
基金
天津市自然科学基金资助项目(11JCZDJC21300)
关键词
沸石
氧化亚铜
亚甲基蓝
光催化
zeolite ~ cuprous oxide ~ methylene blue ~ photocatalysis
