Liquid metal/metal oxide frameworks with incorporated Ga2O3 for photocatalysis

W. Zhang; B.S. Naidu; J.Z. Ou; A.P. O'Mullane; A.F. Chrimes; B.J. Carey; Y. Wang; S.-Y. Tang; V. Sivan; A. Mitchell; S.K. Bhargava; K. Kalantar-Zadeh

doi:10.1021/am5077364

Liquid metal/metal oxide frameworks with incorporated Ga₂O₃ for photocatalysis

W. Zhang, B.S. Naidu, J.Z. Ou, A.P. O'Mullane, A.F. Chrimes, B.J. Carey, Y. Wang, S.-Y. Tang, V. Sivan, A. Mitchell, S.K. Bhargava, K. Kalantar-Zadeh

Engineering

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

85 Citations (Scopus)

Abstract

Solvothermally synthesized Ga₂O₃ nanoparticles are incorporated into liquid metal/metal oxide (LM/MO) frameworks in order to form enhanced photocatalytic systems. The LM/MO frameworks, both with and without incorporated Ga₂O₃ nanoparticles, show photocatalytic activity due to a plasmonic effect where performance is related to the loading of Ga₂O₃ nanoparticles. Optimum photocatalytic efficiency is obtained with 1 wt % incorporation of Ga₂O₃ nanoparticles. This can be attributed to the sub-bandgap states of LM/MO frameworks, contributing to pseudo-ohmic contacts which reduce the free carrier injection barrier to Ga₂O₃.

Original language	English
Pages (from-to)	1943-1948
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	7
Issue number	3
Early online date	14 Jan 2015
DOIs	https://doi.org/10.1021/am5077364
Publication status	Published - 28 Jan 2015

Keywords

liquid metal
galinstan
gallium oxide
photocatalysis

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Cite this

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title = "Liquid metal/metal oxide frameworks with incorporated Ga2O3 for photocatalysis",

abstract = "Solvothermally synthesized Ga2O3 nanoparticles are incorporated into liquid metal/metal oxide (LM/MO) frameworks in order to form enhanced photocatalytic systems. The LM/MO frameworks, both with and without incorporated Ga2O3 nanoparticles, show photocatalytic activity due to a plasmonic effect where performance is related to the loading of Ga2O3 nanoparticles. Optimum photocatalytic efficiency is obtained with 1 wt % incorporation of Ga2O3 nanoparticles. This can be attributed to the sub-bandgap states of LM/MO frameworks, contributing to pseudo-ohmic contacts which reduce the free carrier injection barrier to Ga2O3.",

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T1 - Liquid metal/metal oxide frameworks with incorporated Ga2O3 for photocatalysis

AU - Zhang, W.

AU - Naidu, B.S.

AU - Ou, J.Z.

AU - O'Mullane, A.P.

AU - Chrimes, A.F.

AU - Carey, B.J.

AU - Wang, Y.

AU - Tang, S.-Y.

AU - Sivan, V.

AU - Mitchell, A.

AU - Bhargava, S.K.

AU - Kalantar-Zadeh, K.

PY - 2015/1/28

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N2 - Solvothermally synthesized Ga2O3 nanoparticles are incorporated into liquid metal/metal oxide (LM/MO) frameworks in order to form enhanced photocatalytic systems. The LM/MO frameworks, both with and without incorporated Ga2O3 nanoparticles, show photocatalytic activity due to a plasmonic effect where performance is related to the loading of Ga2O3 nanoparticles. Optimum photocatalytic efficiency is obtained with 1 wt % incorporation of Ga2O3 nanoparticles. This can be attributed to the sub-bandgap states of LM/MO frameworks, contributing to pseudo-ohmic contacts which reduce the free carrier injection barrier to Ga2O3.

AB - Solvothermally synthesized Ga2O3 nanoparticles are incorporated into liquid metal/metal oxide (LM/MO) frameworks in order to form enhanced photocatalytic systems. The LM/MO frameworks, both with and without incorporated Ga2O3 nanoparticles, show photocatalytic activity due to a plasmonic effect where performance is related to the loading of Ga2O3 nanoparticles. Optimum photocatalytic efficiency is obtained with 1 wt % incorporation of Ga2O3 nanoparticles. This can be attributed to the sub-bandgap states of LM/MO frameworks, contributing to pseudo-ohmic contacts which reduce the free carrier injection barrier to Ga2O3.

KW - liquid metal

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KW - gallium oxide

KW - photocatalysis

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