Applied Catalysis2022，Vol.30711.DOI:10.1016/j.apcatb.2022.121181

Synergistic enhancement of photocatalytic CO2 reduction by plasmonic Au nanoparticles on TiO2 decorated N-graphene heterostructure catalyst for high selectivity methane production

Kamal, Khaja Mohaideen Narayan, Rekha Chandran, Narendraraj Popovic, Stefan Nazrulla, Mohammed Azeezulla Kovac, Janez Vrtovec, Nika Bele, Marjan Hodnik, Nejc Krzmanc, Marjeta Macek Likozar, Blaz
Applied Catalysis2022，Vol.30711.DOI:10.1016/j.apcatb.2022.121181
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  • NSTL
  • Elsevier

Synergistic enhancement of photocatalytic CO2 reduction by plasmonic Au nanoparticles on TiO2 decorated N-graphene heterostructure catalyst for high selectivity methane production

Kamal, Khaja Mohaideen 1Narayan, Rekha 1Chandran, Narendraraj 2Popovic, Stefan 1Nazrulla, Mohammed Azeezulla 1Kovac, Janez 3Vrtovec, Nika 1Bele, Marjan 1Hodnik, Nejc 1Krzmanc, Marjeta Macek 3Likozar, Blaz1
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作者信息

  • 1. Natl Inst Chem
  • 2. Tescan Brno SRO
  • 3. Jozef Stefan Inst
  • 折叠

Abstract

Energy-efficient photocatalytic CO2 reduction (PCO2R) into sustainable solar fuels is a highly enticing challenge for simultaneous settling of energy and environmental issues. Herein, we illustrate the synthesis and photo catalytic performance of a judiciously designed plasmonic Au nanoparticles photodeposited on TiO2-decorated N-doped graphene (ANGT-x) heterostructure catalyst showing remarkably enhanced CO2 reduction activity with high selectivity for methane production. Compared to typical binary Au-TiO2 photocatalyst, the ANGT2 exhibited almost 60 times higher electron consumption rate (R-electron) value ~742.39 mu mol g(-1)h(-1) for the reduced products, which, to the best of our knowledge is the highest PCO2R rate ever reported under comparable conditions. The superior performance of ANGT2 catalyst is attributed to the synergistic contributions from improved light absorbance, enhanced CO2 uptake together with improved charge transfer kinetics and efficient suppression of photogenerated (e-h) recombination rate bestowed by seamless interfacial contact between Au NPs and N-graphene-TiO2 components.

Key words

Methane/Nitrogen-doped graphene/Titanium dioxide semiconductor/Metallic gold nanoparticles/Photocatalytic CO2 reduction/LIGHT-DRIVEN PHOTOREDUCTION/DOPED GRAPHENE/HYDROGEN EVOLUTION/OXYGEN REDUCTION/RAMAN-SCATTERING/CARBON-DIOXIDE/METAL/ELECTROREDUCTION/SEMICONDUCTOR/OXIDATION

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量35
参考文献量57
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