Hierarchically plasmonic Z-scheme photocatalyst of Ag/AgCl nanocrystals decorated mesoporous single-crystalline metastable Bi20TiO 32 nanosheets

Jungang Hou, Zheng Wang, Chao Yang, Weilin Zhou, Shuqiang Jiao, Hongmin Zhu

研究成果: Article査読

98 被引用数 (Scopus)

抄録

The hierarchical photocatalysts of Ag-AgCl@Bi20TiO32 composites have been successfully synthesized by anchoring Ag-AgCl nanocrystals on the surfaces of mesoporous single-crystalline metastable Bi 20TiO32 nanosheets via a two-stage strategy for excellent visible-light-driven photocatalytic activities in the Z-scheme system. First, the single-crystalline metastable Bi20TiO32 nanosheets with tetragonal structures were prepared via a facile hydrothermal process in assistance with the post-heat-treatment route using benzyl alcohol. Especially, the mesoporous Bi20TiO32 nanosheets showed high photocatalytic activity for the degradation of rhodamine B dye under visible-light irradiation. Then, the as-prepared mesoporous Bi 20TiO32 nanosheets were used as a support for loading Ag-AgCl nanocrystals using the deposition-precipitation method and irradiation-reduction process to fabricate the Ag-AgCl@Bi20TiO 32 composites. Inspiringly, the hierarchical Ag-AgCl@Bi 20TiO32 photocatalyst has the higher photocatalytic performance than Ag-AgCl nanocrystals and mesoporous Bi20TiO 32 nanosheets over the degradation of rhodamine B and acid orange 7 dyes, which is attributed to the effective charge transfer from plasmon-excited Ag nanocrystal to Bi20TiO32 for the construction of a Z-scheme visible-light photocatalyst. This work could provide new insights into the fabrication of hierarchically plasmonic photocatalysts with high performance and facilitate their practical application in environmental issues.

本文言語English
ページ(範囲)5132-5141
ページ数10
ジャーナルJournal of Physical Chemistry C
117
10
DOI
出版ステータスPublished - 2013 3 14
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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「Hierarchically plasmonic Z-scheme photocatalyst of Ag/AgCl nanocrystals decorated mesoporous single-crystalline metastable Bi<sub>20</sub>TiO <sub>32</sub> nanosheets」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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