Ubiquitous element approach to plasmonic enhanced photocatalytic water splitting: The case of Ti@TiO2 core-shell nanostructure

Yuriy Pihosh; Ivan Turkevych; Kazuma Mawatari; Nobuko Fukuda; Ryoichi Ohta; Masahiro Tosa; Kiyoshi Shimamura; Encarnacion G. Villora; Takehiko Kitamori

doi:10.1088/0957-4484/25/31/315402

Ubiquitous element approach to plasmonic enhanced photocatalytic water splitting: The case of Ti@TiO₂ core-shell nanostructure

Yuriy Pihosh, Ivan Turkevych, Kazuma Mawatari, Nobuko Fukuda, Ryoichi Ohta, Masahiro Tosa, Kiyoshi Shimamura, Encarnacion G. Villora, Takehiko Kitamori

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We demonstrate a new approach to plasmonic enhanced photocatalytic water splitting by developing a novel core-shell Ti@TiO₂ brush nanostructure where an elongated Ti nanorod forms a plasmonic core that concentrates light inside of a nanotubular anodic TiO₂ shell. Following the ubiquitous element approach aimed at providing an enhanced device functionality without the usage of noble or rare earth elements, we utilized only inexpensive Ti to create a complex Ti@TiO₂ nanostructure with an enhanced UV and Vis photocatalytic activity that emerges from the interplay between the surface plasmon resonance in the Ti core, Vis light absorption in the Ti-rich oxide layer at the Ti/TiO₂ interface and UV light absorption in the nanotubular TiO₂ shell.

Original language	English
Article number	315402
Journal	Nanotechnology
Volume	25
Issue number	31
DOIs	https://doi.org/10.1088/0957-4484/25/31/315402
Publication status	Published - Aug 8 2014
Externally published	Yes

Keywords

core-shell nanostructures
nanorods
plasmonic photocatalysis
solar water splitting

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1088/0957-4484/25/31/315402

Cite this

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title = "Ubiquitous element approach to plasmonic enhanced photocatalytic water splitting: The case of Ti@TiO2 core-shell nanostructure",

abstract = "We demonstrate a new approach to plasmonic enhanced photocatalytic water splitting by developing a novel core-shell Ti@TiO2 brush nanostructure where an elongated Ti nanorod forms a plasmonic core that concentrates light inside of a nanotubular anodic TiO2 shell. Following the ubiquitous element approach aimed at providing an enhanced device functionality without the usage of noble or rare earth elements, we utilized only inexpensive Ti to create a complex Ti@TiO2 nanostructure with an enhanced UV and Vis photocatalytic activity that emerges from the interplay between the surface plasmon resonance in the Ti core, Vis light absorption in the Ti-rich oxide layer at the Ti/TiO2 interface and UV light absorption in the nanotubular TiO2 shell.",

keywords = "core-shell nanostructures, nanorods, plasmonic photocatalysis, solar water splitting",

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AU - Pihosh, Yuriy

AU - Turkevych, Ivan

AU - Mawatari, Kazuma

AU - Fukuda, Nobuko

AU - Ohta, Ryoichi

AU - Tosa, Masahiro

AU - Shimamura, Kiyoshi

AU - Villora, Encarnacion G.

AU - Kitamori, Takehiko

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AB - We demonstrate a new approach to plasmonic enhanced photocatalytic water splitting by developing a novel core-shell Ti@TiO2 brush nanostructure where an elongated Ti nanorod forms a plasmonic core that concentrates light inside of a nanotubular anodic TiO2 shell. Following the ubiquitous element approach aimed at providing an enhanced device functionality without the usage of noble or rare earth elements, we utilized only inexpensive Ti to create a complex Ti@TiO2 nanostructure with an enhanced UV and Vis photocatalytic activity that emerges from the interplay between the surface plasmon resonance in the Ti core, Vis light absorption in the Ti-rich oxide layer at the Ti/TiO2 interface and UV light absorption in the nanotubular TiO2 shell.

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KW - plasmonic photocatalysis

KW - solar water splitting

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