二十六面体氧化亚铜-金异质结构型催化剂的制备及其催化降解性能研究

Preparation of 26-facets Cuprous Oxide-Gold Heterostructure Catalyst and the Study on Its Catalytic Degradation Performance

通过水热法制备了粒径约为4μm的二十六面体氧化亚铜(Cu2O)结构,采用Cu2O还原三氯化金(AuCl3),使金(Au)纳米颗粒负载至其表面,形成Cu2O-Au异质结构型光催化剂,进一步利用XRD、SEM对材料进行了分析表征,运用光催化降解甲基橙实验对上述样品进行性能分析测试。结果表明:成功地制备了Cu2O-Au异质结构材料,与Cu2O二十六面体相比,Cu2O-Au异质结构型材料的催化降解性能显著提升,在实验进行390min时,甲基橙的降解率达到了62.4%。

A 26-facets cuprous oxide(Cu2O)whose particle size is about 4μm is prepared by hydrothermal method,then the gold(Au)nanoparticles are prepared and loaded on its surface by redox reaction of auric chloride(AuCl3)and Cu2O to obtain Cu2O-Au heterostructure photocatalyst.Subsequently,the properties of the samples mentioned above are characterized by XRD and SEM,and the catalytic experiment for degrading methyl orange is carried out to analyze the performance.The results show that the Cu2O-Au heterostructure material is prepared successfully.Moreover,the catalytic degradation performance of Cu2O-Au heterostructure material is improved dramatically compared to that of Cu2O.The degradation rate for methyl orange is up to 62.4%after 390min.