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Microwave synthesised Pd-TiO2 for photocatalytic ammonia production

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posted on 04.03.2019, 14:08 by Michael Walls, Jagdeep Sagu, Upul Wijayantha-Kahagala-GamageUpul Wijayantha-Kahagala-Gamage
Palladium doped anatase TiO2 nanoparticles were synthesised by a rapid (3 min) one-pot microwave synthesis technique at low temperature and pressure. After being fully characterised by SEM, XRD, Raman, XPS and EDX, photocatalytic nitrate reduction and ammonia production was studied over various dopant levels between 0–3.97wt% Pd and compared to similar previous literature. Improved yields of ammonia were observed with most dopant levels when compared to non-doped microwave synthesised TiO2 with 2.65wt% found to be the optimum dopant level producing 21.2 µmol NH3. Electrochemical impedance spectroscopy of TiO2 and Pd-TiO2 photoelectrodes revealed improvements in charge transfer characteristics at high Pd dopant levels.

Funding

This research was funded by the UK Engineering and Physical Sciences Research Council (Grant no. EP/L015749/1) through the PhD studentship with the Centre for Doctoral Training in Fuel cells and their Fuels.

History

School

  • Science

Department

  • Chemistry

Published in

RSC Advances

Citation

WALLS, M., SAGU, J.S. and WIJAYANTHA, K.G.U., 2019. Microwave synthesised Pd-TiO2 for photocatalytic ammonia production. RSC Advances, 9: 6387.

Publisher

© Royal Society of Chemistry

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/

Acceptance date

12/02/2019

Publication date

2019-02-22

Notes

This is an Open Access Article. It is published by RSC under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/

ISSN

2046-2069

Language

en

Location

United Kingdom

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