Synthesis of Sn-Porphyrin-Intercalated Trititanate Nanofibers:  Optoelectronic Properties and Photocatalytic Activities

DOI Web Site 被引用文献5件
  • Joon Hee Jang
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea
  • Ki-Seok Jeon
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea
  • Seungdo Oh
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea
  • Hee-Joon Kim
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea
  • Tsuyoshi Asahi
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea
  • Hiroshi Masuhara
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea
  • Minjoong Yoon
    Department of Chemistry, Chungnam National University, Daejeon, 305-764, Korea, Department of Applied Physics, Osaka University, Osaka, Japan, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, Korea

説明

A new class of nanostructures were fabricated by one-step hydrothermal reaction of a mixture solution of TiO2 anatase powder and a Sn-porphyrin, trans-dihydroxo[5,10,15,20-tetrakis(p-tolyl)porphyrinato]tin(IV) [SnTTP], and they were found to be well-crystalline trititanate (H2Ti3O7)-type multilayered nanofibers (TiNFs) intercalated by SnTTP which have lengths in the range of 0.5−1 μm with an average diameter of approximately 50 nm. Based on the femtosecond-diffuse reflectance transient absorption and photoluminescence spectroscopic measurements, the SnTTP-intercalated TiNFs were observed to exhibit efficient optoelectronic properties such as photoinduced electron transfer from deep surface states of trititanate layer to SnTTP, forming an anion radical SnTTP.•- rapidly in a few picoseconds. These results infer that electrons and holes are effectively separated in the SnTTP−TiNFs upon illumination, and consequently remarkable UV−visible light-sensitive photocatalytic activities as compared to those of free ...

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