Single-molecule observation of photocatalytic reaction in TiO2 nanotube: importance of molecular transport through porous structures

Journal of the American Chemical Society
Kazuya NaitoTetsuro Majima

Abstract

We have investigated the photocatalytic activity of individual porous TiO(2) nanotubes by the single-molecule counting of (*)OH using a specific fluorescent probe. The time- and space-resolved observation of emissive fluorescein generated by the photocatalytic reaction clearly reveals the importance of the transport behavior of reagents through the porous structures on the photocatalytic activity and the existence of the spatial heterogeneity of reactive sites even in an isolated TiO(2) nanotube. An experiment on a single nanotube provided information that was useful for elucidating the reaction mechanism of the heterogeneous (photo)catalyst and for designing advanced porous materials.

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Citations

May 1, 2013·Chemical Reviews·Alexey V AkimovOleg V Prezhdo
Oct 21, 2009·Chemical Communications : Chem Comm·Anwei ZhuYang Tian
May 13, 2010·Chemical Communications : Chem Comm·Imran ShakirDae Joon Kang
Jan 16, 2014·Annual Review of Physical Chemistry·Justin B Sambur, Peng Chen
Jan 17, 2017·Journal of the American Chemical Society·Yixian WangNongjian Tao
Mar 18, 2017·Chemical Reviews·Tao ChenNing Fang
Jun 20, 2017·ACS Applied Materials & Interfaces·Chengzhi LuoChunxu Pan
Oct 11, 2016·Faraday Discussions·Yixian WangNongjian Tao
Sep 9, 2010·Chemical Society Reviews·Takashi Tachikawa, Tetsuro Majima
Oct 19, 2010·Chemical Society Reviews·Gert De CremerMaarten B J Roeffaers
Jul 22, 2010·Nanoscale·Takeshi NagahiroKaoru Tamada
Jan 4, 2020·Chemical Communications : Chem Comm·Yuying GaoCan Li
Jul 31, 2013·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·XiaoJin WangWeimin Du
Jun 2, 2009·Journal of the American Chemical Society·Takashi Tachikawa, Tetsuro Majima
Apr 10, 2021·Physical Review Letters·Jingyu KangJaeyoung Sung
May 1, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Takashi Tachikawa, Tetsuro Majima
May 21, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Shiny E JohnMano Misra
Jun 15, 2010·Analytical Chemistry·Aleeta M PoweIsiah M Warner
Apr 30, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Yi-Ju ChenKing-Chuen Lin
Mar 13, 2015·ACS Applied Materials & Interfaces·Minggui WangYadong Yin
Apr 19, 2011·Journal of the American Chemical Society·Takashi TachikawaTetsuro Majima
Feb 14, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Takashi Tachikawa, Tetsuro Majima
Jul 25, 2019·Chemical Reviews·Jiao DengChong Liu

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