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

doi:10.19894/j.issn.1000-0518.210390

Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (8): 1237-1245.DOI: 10.19894/j.issn.1000-0518.210390

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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

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)

Abstract

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

CLC Number:

O643.3

Ye LIU, Shao-Bo GUO, Yan-Li LIANG, Hong-Guang GE, Jian-Qi MA, Zhi-Feng LIU, Bo LIU. Preparation and Catalytic Performance of Core‑Shell CuFe₂O₄@NH₂@Pt Nanocomposites[J]. Chinese Journal of Applied Chemistry, 2022, 39(8): 1237-1245.

Figures/Tables 7

Fig.1 TEM images of magnetic nanoparticles CuFe2O4 （A， B） and CuFe2O4@NH2@Pt NPs （C， D）

Fig.2 The VSM of CuFe2O4，CuFe2O4@NH2 and CuFe2O4@NH2@Pt

Fig.3 HRTEM （A） and elemental map （B） of CuFe2O4@NH2@Pt

Fig.4 Elemental spectra of Fe （A）， O （B）， Cu （C） and Pt （D）

Fig.5 XRD patterns of CuFe2O4， CuFe2O4@NH2 and CuFe2O4@NH2@Pt。 represents CuFe2O4 phase

Fig.6 （A） XPS diagram of CuFe2O4@NH2@Pt sample；（B） XPS spectrum of Pt4f5/2，7/2；（C） XPS atlas of Cu2p3/2；（D） XPS atlas of Fe2p1/2，3/2

Fig.7 Ultraviolet visible degradation spectra of p-nitrophenol （p-NP） and sodium borohydride reactipon （A）， catalyzed with CuFe2O4 （B）， CuFe2O4@NH2 （C） and CuFe2O4@NH2@Pt （D） catalysts； Ultraviolet visible degradation spectra of potassium ferricyanate and sodium formate reaction （E）， catalyzed by CuFe2O4 （F）， CuFe2O4@NH2 （G） and CuFe2O4@NH2@Pt （H） catalysts

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

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