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高等学校化学研究 ›› 2019, Vol. 35 ›› Issue (1): 163-170.doi: 10.1007/s40242-018-8154-6

• Articles • 上一篇    

Novel Approach for the Decoration of Magnetic Carbon Nanospheres with Platinum Nanoparticles and Their Enhanced Peroxidase Activity for the Colorimetric Detection of H2O2

SU Ce, BAI Lingling, ZHANG Hongbo, CHANG Kaishan, LI Guanbin, LI Siliang   

  1. School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
  • 收稿日期:2018-05-11 修回日期:2018-11-09 出版日期:2019-02-01 发布日期:2019-01-09
  • 通讯作者: SU Ce, LI Siliang E-mail:cesu1008@lut.cn;lsl2004@lut.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China(No.21761019).

Novel Approach for the Decoration of Magnetic Carbon Nanospheres with Platinum Nanoparticles and Their Enhanced Peroxidase Activity for the Colorimetric Detection of H2O2

SU Ce, BAI Lingling, ZHANG Hongbo, CHANG Kaishan, LI Guanbin, LI Siliang   

  1. School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
  • Received:2018-05-11 Revised:2018-11-09 Online:2019-02-01 Published:2019-01-09
  • Contact: SU Ce, LI Siliang E-mail:cesu1008@lut.cn;lsl2004@lut.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21761019).

摘要: Pt/Fe3O4-DIB-DETA-CNS (PFDDC) nanocomposite (DIB=2, 4-dihydroxybenzaldehyde; DETA=diethylene-triamine; CNS=carbon nanosphere) was synthesized by dispersing Pt nanoparticles on magnetic carbon nanospheres. The structure, morphology and composition of the nanocomposite were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS). In addition, the nanocomposite showed superior peroxidase-like activity towards 3, 3', 5, 5'-tetramethylbenzidine (TMB) with a visual color change in the presence of hydrogen peroxide (H2O2). Therefore, the PFDDC nanocomposite provides a sensing platform for the colorimetric detection of H2O2 with high sensitivity and selectivity. Furthermore, the nanocomposite can be conveniently preserved and separated. These features enable the nanocomposite to colorimetrically detect H2O2 for potential pharmaceutical, environmental and industrial applications.

关键词: Pt nanoparticle, Magnetic carbon nanosphere, Peroxidase-like activity, Colorimetric sensor, H2O2

Abstract: Pt/Fe3O4-DIB-DETA-CNS (PFDDC) nanocomposite (DIB=2, 4-dihydroxybenzaldehyde; DETA=diethylene-triamine; CNS=carbon nanosphere) was synthesized by dispersing Pt nanoparticles on magnetic carbon nanospheres. The structure, morphology and composition of the nanocomposite were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS). In addition, the nanocomposite showed superior peroxidase-like activity towards 3, 3', 5, 5'-tetramethylbenzidine (TMB) with a visual color change in the presence of hydrogen peroxide (H2O2). Therefore, the PFDDC nanocomposite provides a sensing platform for the colorimetric detection of H2O2 with high sensitivity and selectivity. Furthermore, the nanocomposite can be conveniently preserved and separated. These features enable the nanocomposite to colorimetrically detect H2O2 for potential pharmaceutical, environmental and industrial applications.

Key words: Pt nanoparticle, Magnetic carbon nanosphere, Peroxidase-like activity, Colorimetric sensor, H2O2