Efficient photocatalytic oxygen evolution using BaTaO2N obtained from nitridation of perovskite-type oxide

Shraddha Jadhav; Shuta Hasegawa; Takashi Hisatomi; Zheng Wang; Jeongsuk Seo; Tomohiro Higashi; Masao Katayama; Tsutomu Minegishi; Tsuyoshi Takata; Juan M. Peralta-Hernández; Oracio Serrano Torres; Kazunari Domen

doi:10.1039/C9TA10684G

Efficient photocatalytic oxygen evolution using BaTaO₂N obtained from nitridation of perovskite-type oxide†

Shraddha Jadhav,

^ab Shuta Hasegawa,^c Takashi Hisatomi,

*^a Zheng Wang,^a Jeongsuk Seo,

^a Tomohiro Higashi,

^c Masao Katayama,^c Tsutomu Minegishi,

‡^c Tsuyoshi Takata,^a Juan M. Peralta-Hernández,^b Oracio Serrano Torres

^b and Kazunari Domen

*^ad

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* Corresponding authors

^a Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
E-mail: hisatomi@shinshu-u.ac.jp, domen@shinshu-u.ac.jp

^b Departamento de Química, Sede Pueblito de Rocha, Universidad de Guanajuato, Cerro de la Venada s/n, Pueblito de Rocha, Guanajuato, México

^c Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

^d Office of University Professor, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-86556, Japan
E-mail: domen@chemsys.t.u-tokyo.ac.jp

Abstract

BaTaO₂N nitrided from a precursor oxide having a perovskite-type structure and a Ba/Ta ratio of unity, nominally expressed as (Na_1/4Ba_3/4)(Zn_1/4Ta_3/4)O₃, shows an apparent quantum yield of 11.9% at 420 nm during the photocatalytic oxygen evolution reaction. This is more than five times greater than those reported for existing BaTaO₂N photocatalysts.

Journal of Materials Chemistry A

Efficient photocatalytic oxygen evolution using BaTaO₂N obtained from nitridation of perovskite-type oxide†

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Efficient photocatalytic oxygen evolution using BaTaO₂N obtained from nitridation of perovskite-type oxide

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Journal of Materials Chemistry A