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Microwave synthesised Pd-TiO₂ for photocatalytic ammonia production.

ABSTRACT: 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 were studied over various dopant levels between 0-3.97 wt% 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 2.65 wt% 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.

SUBMITTER: Walls JM

PROVIDER: S-EPMC9060955 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Microwave synthesised Pd-TiO2 for photocatalytic ammonia production.

Walls Jake M JM Sagu Jagdeep S JS Upul Wijayantha K G KG

RSC advances 20190222 11

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 were studied over various dopant levels between 0-3.97 wt% Pd and compared to similar previous literature. Improved yields of ammonia were observed with most dopant levels when compared to non-doped microwave synthesis ...[more]

PMID: 35517259

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