What is it about?
This paper reports on the investigation of the application of lanthanum and carbon co-doped sodium tantalum oxide as a visible light responsive photocatalyst for hydrogen production.
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Why is it important?
Doping of elements like C doped NaTaO3 are useful for inducing visible light absorption. Carbon doping either decreases the band gap by mixing of C 2p states with O 2p states on the top of the valance band or creates a C-induced low-gap level. The extension to the visible light absorption edge became drastic with the increasing carbon content in the sample. It was found that the photocatalytic activity of La-C-NaTaO3 depended strongly on the doping content of C, and the La-C-NaTaO3 sample shows the highest photocatalytic activity in water reduction.
Perspectives
We report a process to synthesize lanthanum and carbon co-doped NaTaO3 which has attracted great attention due to the potential for hydrogen evolution. The finding was highlighted and discussed in developing an active photocatalytic material at a range of visible light.
Dr Husni HH Husin
Syiah Kuala University
Read the Original
This page is a summary of: Visible Light Driven Photocatalytic Hydrogen Evolution by Lanthanum and Carbon-co-Doped NaTaO3 Photocatalyst, Key Engineering Materials, August 2015, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/kem.659.231.
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