Synthesis of Pt Nanoparticles Anchored on Polyamidoamine-Modified Hollow Silica Nanospheres for Catalytic Reduction of p-Nitrophenol
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  • 作者:Qianli Wang ; Yiwei Zhang ; Yuming Zhou…
  • 关键词:Pt nanoparticles ; Hollow SiO2 ; PAMAM ; ZnO ; p ; Nitrophenol
  • 刊名:Journal of Inorganic and Organometallic Polymers and Materials
  • 出版年:2016
  • 出版时间:May 2016
  • 年:2016
  • 卷:26
  • 期:3
  • 页码:702-710
  • 全文大小:1,661 KB
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  • 作者单位:Qianli Wang (1)
    Yiwei Zhang (1)
    Yuming Zhou (1)
    Zewu Zhang (2)
    Chao Zhang (1)
    Yuanmei Xu (1)

    1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
    2. School of Materials Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Inorganic Chemistry
    Organic Chemistry
    Polymer Sciences
  • 出版者:Springer New York
  • ISSN:1574-1451
文摘
A catalyst that Pt nanoparticles (NPs) anchored on hollow silica nanospheres modified by polyamidoamine (PAMAM) dendrimers was synthesized (marked as hollow SiO2–G1–Pt). The hollow silica nanospheres were facilely prepared through etching the template of ZnO nanospheres. Pt NPs exhibited small size (around 2.32 nm) and uniform dispersion owing to the unique physicochemical property of the dendrimers. The catalytic performances of as-prepared catalysts were evaluated with the reduction of p-nitrophenol by NaBH4. The results showed the fabricated hollow SiO2–G1–Pt catalyst exhibited the excellent catalytic activity, which was higher than that of Pt NPs deposited on hollow silica without grafting of PAMAM dendrimers and Pt NPs loaded on PAMAM-modified ZnO@SiO2. Moreover, the results of recycling experiments revealed hollow SiO2–G1–Pt possessed convenient separation and the similar catalytic performance without visible reduction after five runs.

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