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Nanostructured Graphene-Titanium Dioxide Composites Synthesized by a Single-Step Aerosol Process for Photoreduction of Carbon Dioxide.

ABSTRACT: Photocatalytic reduction of carbon dioxide (CO₂) to hydrocarbons by using nanostructured materials activated by solar energy is a promising approach to recycling CO₂ as a fuel feedstock. CO₂ photoreduction, however, suffers from low efficiency mainly due to the inherent drawback of fast electron-hole recombination in photocatalysts. This work reports the synthesis of nanostructured composites of titania (TiO₂) nanoparticles (NPs) encapsulated by reduced graphene oxide (rGO) nanosheets via an aerosol approach. The role of synthesis temperature and TiO₂/GO ratio in CO₂ photoreduction was investigated. As-prepared nanocomposites demonstrated enhanced CO₂ conversion performance as compared with that of pristine TiO₂ NPs due to the strong electron trapping capability of the rGO nanosheets.

SUBMITTER: Wang WN

PROVIDER: S-EPMC4098976 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Nanostructured Graphene-Titanium Dioxide Composites Synthesized by a Single-Step Aerosol Process for Photoreduction of Carbon Dioxide.

Wang Wei-Ning WN Jiang Yi Y Fortner John D JD Biswas Pratim P

Environmental engineering science 20140701 7

Photocatalytic reduction of carbon dioxide (CO2) to hydrocarbons by using nanostructured materials activated by solar energy is a promising approach to recycling CO2 as a fuel feedstock. CO2 photoreduction, however, suffers from low efficiency mainly due to the inherent drawback of fast electron-hole recombination in photocatalysts. This work reports the synthesis of nanostructured composites of titania (TiO2) nanoparticles (NPs) encapsulated by reduce ...[more]

PMID: 25053879

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