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

Wei Ning Wang; Yi Jiang; John D. Fortner; Pratim Biswas

doi:10.1089/ees.2013.0473

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

Wei Ning Wang, Yi Jiang, John D. Fortner, Pratim Biswas

Research output: Journal article publication › Journal article › Academic research › peer-review

28 Citations (Scopus)

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.

Original language	English
Pages (from-to)	428-434
Number of pages	7
Journal	Environmental Engineering Science
Volume	31
Issue number	7
DOIs	https://doi.org/10.1089/ees.2013.0473
Publication status	Published - Jul 2014
Externally published	Yes

Keywords

carbon neutrality
crumpling
photocatalysis
solar energy
spray pyrolysis

ASJC Scopus subject areas

Environmental Chemistry
Waste Management and Disposal
Pollution

More information

10.1089/ees.2013.0473

Cite this

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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.",

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AU - Fortner, John D.

AU - Biswas, Pratim

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KW - spray pyrolysis

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

Abstract

Keywords

ASJC Scopus subject areas

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