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Photopatterning Proteins and Cells in Aqueous Environment Using TiO2 Photocatalysis
Published on: October 26, 2015
Modulating the photocatalytic redox preferences between anatase TiO2 {001} and {101} surfaces
Peng Zhou1, Hongna Zhang1, Hongwei Ji1
1Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China. ccchen@iccas.ac.cn jczhao@iccas.ac.cn.
Abstract:
It is widely believed that anatase TiO2 {001} and {101} surfaces acts as the oxidative and reductive sites in photocatalytic reactions, respectively, which is attributed to their different intrinsic surface structures. However, we demonstrate that the photocatalytic redox preferences of TiO2 {001} and {101} surfaces are determined by the adsorbate-reconstructed surface structure instead of their intrinsic surface structures, which can be modulated by surface protonation/deprotonation.
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