Liquid metal/metal oxide frameworks with incorporated Ga₂O₃ for photocatalysis

Zhang, Wei, Naidu, Boddu S., Ou, Jian Zhen, O'Mullane, Anthony P., Chrimes, Adam F., Carey, Benjamin J., Wang, Yichao, Tang, Shi Yang, Sivan, Vijay, Mitchell, Arnan, Bhargava, Suresh K. and Kalantar-Zadeh, Kourosh (2015) Liquid metal/metal oxide frameworks with incorporated Ga₂O₃ for photocatalysis. ACS Applied Materials and Interfaces, 7 (3), 1943-1948. (doi:10.1021/am5077364).

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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Contributors

Author: Shi Yang Tang

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