Convenient chirality transfer from organics to titania: Construction and optical properties

Xin Ling Liu, Ken Murakami, Hiroyuki Matsukizono, Seiji Tsunega, Ren Hua Jin

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

Polyethyleneimine (PEI) complexed with chiral d- (or l-) tartaric acid (tart) in water can self-organize into chiral and crystalline PEI/tart assemblies. It has been previously confirmed that the complexes of PEI/tart could work as catalytic/chiral templates to induce the deposition of SiO2 nanofibres with optical activity but without outwards shape chirality such as helices. In this work, we found that the templating functions of PEI/tart were still effective to prompt the deposition of TiO2 to form chiral PEI/tart@TiO2 hybrid nanofibres under aqueous and room temperature conditions within two hours. Furthermore, the co-deposition of TiO2 and SiO2 was also fulfilled to yield chiral PEI/tart@TiO2/SiO2 nanofibres. These TiO2-containing hybrid nanofibres showed non-helical shapes on the length scale; however, chiroptical signals with mirror relation around the UV-Vis absorption band of TiO2 remarkably appeared on their circular dichroism (CD) spectra. By means of the protocols of XRD, TEM, SEM, UV-Vis, CD and XPS, structural features and thermoproperties of the chiral TiO2 and SiO2/TiO2 were investigated.

本文言語英語
ページ(範囲)15951-15960
ページ数10
ジャーナルRSC Advances
8
29
DOI
出版ステータス出版済み - 2018
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 化学工学(全般)

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