In situ construction of 3D TiO2 photoelectrode with multilevel facet heterojunctions towards the efficient removal of bisphenol A

Yiqiong Hu; Xiaotong Gu; Guohua Zhao; Ya-nan Zhang

doi:10.1039/D1CC02776J

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In situ construction of 3D TiO₂ photoelectrode with multilevel facet heterojunctions towards the efficient removal of bisphenol A†

Yiqiong Hu,^a Xiaotong Gu,^a Guohua Zhao

^ab and Ya-nan Zhang

*^ab

Author affiliations

* Corresponding authors

^a School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, China
E-mail: yananzhang@tongji.edu.cn

^b Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, People's Republic of China

Abstract

An innovative three-dimensional (3D) TiO₂ photoelectrode with multilevel facet heterojunctions (FHs) is rationally designed based on in situ 1D rutile TiO₂ nanorods with top {111} facets on a Ti mesh substrate. The 3D configuration composed of nanosheets and nanorods is provided with large specific area. The stepped band structure of the multilevel FH gives further impetus to spatial charge separation. The obtained FH-{111}TiO₂/Ti photoelectrode achieves a 100% removal of bisphenol A (BPA) in only 20 min and presents an outstanding stability even after 10 cycles. Briefly, this work provides a reference pathway for the highly efficient removal of BPA.

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Article information

DOI: https://doi.org/10.1039/D1CC02776J
Article type: Communication
Submitted: 27 May 2021
Accepted: 01 Jul 2021
First published: 02 Jul 2021

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Chem. Commun., 2021,57, 7633-7636

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In situ construction of 3D TiO₂ photoelectrode with multilevel facet heterojunctions towards the efficient removal of bisphenol A

Y. Hu, X. Gu, G. Zhao and Y. Zhang, Chem. Commun., 2021, 57, 7633 DOI: 10.1039/D1CC02776J

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Chemical Communications