核壳型纳米复合材料Cu Fe_(2)O_(4)@NH_(2)@Pt的制备及催化性能  

Preparation and Catalytic Performance of Core-Shell Cu Fe_(2)O_(4)@NH_(2)@Pt Nanocomposites

作　　者：刘也 郭少波 梁艳莉 葛红光[1] 马剑琪[1] 刘智峰[1] 刘波[1] LIU Ye;GUO Shao-Bo;LIANG Yan-Li;GE Hong-Guang;MA Jian-Qi;LIU Zhi-Feng;LIU Bo(College of Chemistry,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]陕西理工大学化学学院,汉中723000

出　　处：《应用化学》2022年第8期1237-1245,共9页Chinese Journal of Applied Chemistry

基　　金：陕西理工大学人才启动项目(No.SLGRCQD2027);陕西省教育厅科研计划项目(No.21JK0569);陕西省重点研发计划-重点产业创新链(群)-工业领域项目(No.2020ZDLGY11-02)资助。

摘　　要：采用溶剂热法制备磁性CuFe_(2)O_(4)亚微球,以三氨丙基三甲氧基硅烷(APTMS)为表面修饰剂对CuFe_(2)O_(4)进行氨基化修饰,吸附Pt^(4+)离子后用乙二醇原位还原制备CuFe_(2)O_(4)@NH_(2)@Pt复合材料。利用透射电子显微镜(TEM)、能量色散X射线光谱仪(EDX)、X射线光电子能谱分析(XPS)、X射线衍射(XRD)、紫外可见分光光度计(UV-Vis)和振动样品磁强计(VSM)对样品形貌、结构、晶型和催化性能等进行表征。以有机染料对硝基苯酚和无机染料铁氰酸钾为目标污染物研究其催化性能,结果显示6 min内,对硝基苯酚降解率约99.9%,9 min内,铁氰酸钾降解率约97%。为高效便捷的处理水污染提供了思路和方法。Magnetic CuFe_(2)O_(4) submicrospheres were prepared by solvothermal method,and then modified with triaminopropyltrimethoxysilane(APTMS)as the surface modifier.Cu Fe_(2)O_(4)@NH_(2)@Pt composites were prepared by in-situ reduction with ethylene glycol after adsorption of Pt^(4+) ions.The morphology,structure and crystal morphology of the samples are characterized by transmission electron microscopy(TEM),energy dispersive X-ray spectrometer(EDX),X-ray photoelectron spectroscopy(XPS),X-ray diffraction(XRD),Ultraviolet visible spectrophotometer(UV⁃Vis)and vibration sample magnetometer(VSM).The catalytic activities of organic dye p-nitrophenol and inorganic dye potassium ferrocyanate are investigated as the target pollutants.The results show that the degradation rate of p-nitrophenol is about 99.9%within 6 min,and the degradation rate of potassium ferric cyanate is about 97%within 9 min.It provides ideas and methods for efficient and convenient treatment of water pollution.

关 键 词：Pt纳米颗粒 磁性复合材料 非均相催化剂 协同催化 降解 

分 类 号：O643.3[理学—物理化学]