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Oxygen-Cluster-Modified Anatase with Graphene Leads to Efficient and Recyclable Photo-Catalytic Conversion of CO₂ to CH₄ Supported by the Positron Annihilation Study.

ABSTRACT: Anatase TiO₂ hollow nanoboxes were synthesized and combined with the graphene oxide to get nanocomposite of TiO₂/rGO (TG). Graphene oxide was used to modify the Oxygen-Clusters and bulk to surface defects. Anatase and TG composite were characterized with the positron annihilation, XPS, EPR, EIS and photocurrent response analysis. The relative affects of defects on the photocatalytic reduction (CO₂ to CH₄) were studied. The TG composites showed highest photo-catalytic activity after GO coupling (49 µmol g^-1 h^-1), 28.6 times higher photocurrent yields much higher quantum efficiency (3.17%@400 nm) when compared to the TiO₂ nanoboxes. The mechanism of enhanced photo-catalytic CO₂ conversion to CH₄

SUBMITTER: Ahmed G

PROVIDER: S-EPMC6739302 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Dataset Information

Oxygen-Cluster-Modified Anatase with Graphene Leads to Efficient and Recyclable Photo-Catalytic Conversion of CO₂ to CH₄ Supported by the Positron Annihilation Study.

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Dataset Information

Oxygen-Cluster-Modified Anatase with Graphene Leads to Efficient and Recyclable Photo-Catalytic Conversion of CO2 to CH4 Supported by the Positron Annihilation Study.

OmicsDI is part of the ELIXIR infrastructure

Tweets

Oxygen-Cluster-Modified Anatase with Graphene Leads to Efficient and Recyclable Photo-Catalytic Conversion of CO₂ to CH₄ Supported by the Positron Annihilation Study.