应用化学 ›› 2022, Vol. 39 ›› Issue (8): 1237-1245.DOI: 10.19894/j.issn.1000-0518.210390

• 研究论文 • 上一篇    下一篇

核壳型纳米复合材料CuFe2O4@NH2@Pt的制备及催化性能

刘也, 郭少波, 梁艳莉, 葛红光(), 马剑琪, 刘智峰, 刘波   

  1. 陕西理工大学化学学院,汉中 723000
  • 收稿日期:2021-07-29 接受日期:2021-10-19 出版日期:2022-08-01 发布日期:2022-08-04
  • 通讯作者: 葛红光
  • 基金资助:
    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(21JK0569);陕西省重点研发计划-重点产业创新链(群)-工业领域项目(2020ZDLGY11-02)

Preparation and Catalytic Performance of Core‑Shell CuFe2O4@NH2@Pt Nanocomposites

Ye LIU, Shao-Bo GUO, Yan-Li LIANG, Hong-Guang GE(), Jian-Qi MA, Zhi-Feng LIU, Bo LIU   

  1. College of Chemistry,Shaanxi University of Technology,Hanzhong 723000,China
  • Received:2021-07-29 Accepted:2021-10-19 Published:2022-08-01 Online:2022-08-04
  • Contact: Hong-Guang GE
  • About author:gehg@snut.edu.cn
  • Supported by:
    the Fundamental Research Funds of Shaanxi University of Technology(SLGRCQD2027);the Scientific Research Program of Shaanxi Provincial Education Department(21JK0569);the Key Research and Development Program of Shaanxi(2020ZDLGY11-02)

摘要:

采用溶剂热法制备磁性CuFe2O4亚微球,以三氨丙基三甲氧基硅烷(APTMS)为表面修饰剂对CuFe2O4进行氨基化修饰,吸附Pt4+离子后用乙二醇原位还原制备CuFe2O4@NH2@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。

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

Abstract:

Magnetic CuFe2O4 submicrospheres were prepared by solvothermal method, and then modified with triaminopropyltrimethoxysilane (APTMS) as the surface modifier. CuFe2O4@NH2@Pt composites were prepared by in-situ reduction with ethylene glycol after adsorption of Pt4+ 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.

Key words: Pt nanoparticles, Magnetic composites, Heterogeneous catalyst, Synergistic catalysis, Degradation

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