前驱体(AuCl3)的量对立方体氧化亚铜-金异质结构材料催化降解性能的影响  

Effect of Precursor(AuCl3)on the Catalytic Degradation Performance of Cubic Cuprous Oxide-Gold Heterostructure Materials

作　　者：党韶丽[1] 徐凯[2] 宁静慧[1] 潘哲[1] DANG Shao-li;XU Kai;NING Jing-hui;PAN Zhe(School of Biology and Architectural Engineering,Baoji Vocational and Technical college,Eaqji 721008,Shaanxi,China;Baoji Petroleum Steel Pipe Co.,Ltd.,Baoji 721008,Shaanxi,China)

机构地区：[1]宝鸡职业技术学院生物与建筑工程学院,陕西宝鸡721013 [2]宝鸡石油钢管有限公司,陕西宝鸡721008

出　　处：《合成材料老化与应用》2020年第5期67-69,93,共4页Synthetic Materials Aging and Application

基　　金：陕西省教育厅专项科研计划项目(19JK0048)

摘　　要：本文采用水热法制备了具有立方体结构的氧化亚铜(Cu2O),随后利用Cu2O与三氯化金(AuCl3)的氧化还原反应,在Cu2O的{100}晶面上得到金(Au)纳米颗粒,获得Cu2O-Au异质结构材料,进一步通过XRD、SEM对所得材料进行分析表征,同时利用甲基橙的光催化降解实验深入研究了前驱体AuCl3量对Cu2O-Au结构和性能的影响。研究结果表明,在立方体Cu2O晶面上成功负载上了尺寸均一、分布均匀的Au纳米颗粒,与立方体Cu2O相比,Cu2O-Au异质结构材料的光催化降解性能随前驱体AuCl3量的增加而逐步提高,但增大至一定程度时,催化降解速率趋于稳定。Cubic cuprous oxide(Cu2O) was prepared by hydrothermal method, then gold(Au) nanoparticles were prepared and loaded on its lattice plane by redox reaction of Cu2O and auric chloride(AuCl3) to obtain Cu2O-Au heterostructural photocatalyst.Moreover, the effect of the amount of Au precusor(AuCl3) on its structure and performance were investigated.Subsequently, the properties of the above materials were characterized by X-ray Diffraction(XRD), Scanning Electron Microscope(SEM) and catalytic degradation experiment of methyl orange.The results revealed that the obtained Au nanoparticles loaded and distributed homogeneously on the {100} lattice plane of Cu2O.It was also found that the catalytic degradation performance of Cu2O-Au heterostructural materials enhanced step by step as the increase of the amount of AuCl3 gradually.While its catalytic degradation rate tends to a stable value after the amount of AuCl3 exceeds a certain extent.

关 键 词：氧化亚铜 金纳米颗粒 异质结构 催化降解性能 

分 类 号：O643[理学—物理化学]