Hierarchically Dual-Mesoporous TiO2 Microspheres for Enhanced Photocatalytic Properties and Lithium Storage

Sa Xiao, Yi Lu, Xin Li, Bing Yu Xiao, Liang Wu, Jian Ping Song, Yu Xuan Xiao, Si Ming Wu, Jie Hu, Yong Wang, Gang Gang Chang, Ge Tian, Silvia Lenaerts, Christoph Janiak, Xiao Yu Yang, Bao Lian Su

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Abstract

Hierarchically dual-mesoporous TiO2 microspheres have been synthesized by a solvothermal process in the presence of 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4]) and diethylenetriamine (DETA) as co-templates. Secondary mesostructured defects in the hierarchical TiO2 microspheres produce oxygen vacancies, which not only significantly enhance photocatalytic activity in the degradation of methylene blue (1.7 times that with P25) and acetone (2.9 times that with P25), but are also beneficial for lithium storage. Moreover, we propose a mechanism to rationalize the role of this dual mesoporosity of the TiO2 microspheres in enhancing molecular diffusion, ion transportation, and electronic transitions.

Original languageEnglish
Pages (from-to)13246-13252
Number of pages7
JournalChemistry - A European Journal
Volume24
Issue number50
DOIs
Publication statusPublished - 6 Sep 2018

Keywords

  • energy storage
  • hierarchical dual-mesoporous TiO
  • ionic liquids
  • mesostructured defects
  • photocatalysis
  • template synthesis

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    Xiao, S., Lu, Y., Li, X., Xiao, B. Y., Wu, L., Song, J. P., Xiao, Y. X., Wu, S. M., Hu, J., Wang, Y., Chang, G. G., Tian, G., Lenaerts, S., Janiak, C., Yang, X. Y., & Su, B. L. (2018). Hierarchically Dual-Mesoporous TiO2 Microspheres for Enhanced Photocatalytic Properties and Lithium Storage. Chemistry - A European Journal, 24(50), 13246-13252. https://doi.org/10.1002/chem.201801933