• 제목/요약/키워드: Fullerene oxide[$C_{60}(O)_n$, ($n{\geq}1$)]

검색결과 2건 처리시간 0.017초

Synthesis of Hybrid Fullerene Oxide[C60(O)n, (n≥1)] - Silver Nanoparticle Composites and Their Catalytic Activity for Reduction of 2-, 3-, 4-Nitroaniline

  • Park, Jeong Hoon;Ko, Jeong Won;Ko, Weon Bae
    • Elastomers and Composites
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    • 제54권3호
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    • pp.252-256
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    • 2019
  • Fullerene oxide[$C_{60}(O)_n$, ($n{\geq}1$)] was synthesized by dissolving fullerene[$C_{60}$] and 3-chloroperoxybenzoic acid in toluene under refluxing condition for 5 h. Hybrid fullerene oxide-silver nanoparticle composites were synthesized by dissolving fullerene oxide and silver nitrate[$AgNO_3$] in diethylene glycol under ultrasonic irradiation for 3 h. The synthesized hybrid nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, and ultraviolet-visible[UV-vis] spectroscopy. The catalytic activity for the reduction of various nitroanilines[NAs] was identified by UV-vis spectrophotometer. The efficiency of the catalytic reduction by the synthesized hybrid nanocomposites has an order of 4-NA > 2-NA > 3-NA.

Synthesis of Gold Nanoparticles Using Fullerene Oxide and Their Catalytic Activity for Reduction of 4-Nitroaniline

  • Park, Geun Wook;Ko, Jeong Won;Ko, Weon Bae
    • Elastomers and Composites
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    • 제54권2호
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    • pp.105-109
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    • 2019
  • Gold nanoparticles were synthesized by reacting potassium tetrachloroaurate ($KAuCl_4$), potassium carbonate ($K_2CO_3$), and isopropyl alcohol in the presence of fullerene oxide [$C_{60}(O)_n$, $n{\geq}1$], which was, in turn, prepared from [$C_{60}$] fullerene and m-chloroperoxybenzoic acid under refluxing conditions. The crystallinity and morphology of the prepared gold nanoparticles were confirmed by UV-vis spectroscopy, X-ray diffraction, and scanning electron microscopy. The activity of the gold nanoparticles in the reduction of 4-nitroaniline was measured in order to determine its capability as a catalyst.