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Article: Efficient sunlight driven CO2 reduction on Graphene-wrapped Cu-Pt/rTiO2 @ SiO2

TitleEfficient sunlight driven CO2 reduction on Graphene-wrapped Cu-Pt/rTiO2 @ SiO2
Authors
KeywordsCO2 conversion
Photocatalysis
Reduced TiO2
Photoreduction
Issue Date2020
PublisherKe Ai Publishing Communications Ltd. The Journal's web site is located at http://www.keaipublishing.com/en/journals/materials-science-for-energy-technologies/
Citation
Materials Science for Energy Technologies, 2020, v. 3, p. 734-741 How to Cite?
AbstractThe Photoreduction of CO2 provides a promising way to solving environmental issues. In this work, hydrogen-doped Titania powders were fabricated using NaBH4 heated with TiO2 at 350 °C. The reduced Titania was decorated with Platinum nanoparticles by Poly (N-vinyl-2-pyrrolidone) PVP protected Pt solution. The copper precursor was mixed with the previous sample to get Cu-Pt bi-metal co-catalysts deposited on the surface of reduced TiO2. After wrapping with graphene oxide (GO) sheets, core-shell-structured photocatalysts graphene-wrapped Cu-Pt/rTiO2 be synthesized. A systematic study of CO2 photoreduction performance of graphene-wrapped Cu-Pt/rTiO2 was conducted using the on-line GC system with SiO2 fiber as the substrate. Under AM1.5 G simulated sunlight, the graphene-wrapped Cu-Pt/rTiO2 @ SiO2 produced carbon monoxide (394.84 μmol g-1cat 1. h−1) from CO2 with remarkable selectivity reaching 99%. Over 7 h of illumination period, the prepared sample was showing excellent stability with no decrease in origin CO2 conversion rate. Elemental mapping and transmission electron microscopy images confirmed Cu-Pt bi-metal nanoparticles deposited on the surface of TiO2 nanoparticles. The Inert gas control group test confirmed that carbon monoxide products originate from CO2.
Persistent Identifierhttp://hdl.handle.net/10722/287678
ISSN

 

DC FieldValueLanguage
dc.contributor.authorZHANG, M-
dc.contributor.authorWU, M-
dc.contributor.authorWANG, Z-
dc.contributor.authorCheng, R-
dc.contributor.authorLeung, YCD-
dc.contributor.authorLu, Z-
dc.contributor.authorFeng, SPT-
dc.date.accessioned2020-10-05T12:01:38Z-
dc.date.available2020-10-05T12:01:38Z-
dc.date.issued2020-
dc.identifier.citationMaterials Science for Energy Technologies, 2020, v. 3, p. 734-741-
dc.identifier.issn2589-2991-
dc.identifier.urihttp://hdl.handle.net/10722/287678-
dc.description.abstractThe Photoreduction of CO2 provides a promising way to solving environmental issues. In this work, hydrogen-doped Titania powders were fabricated using NaBH4 heated with TiO2 at 350 °C. The reduced Titania was decorated with Platinum nanoparticles by Poly (N-vinyl-2-pyrrolidone) PVP protected Pt solution. The copper precursor was mixed with the previous sample to get Cu-Pt bi-metal co-catalysts deposited on the surface of reduced TiO2. After wrapping with graphene oxide (GO) sheets, core-shell-structured photocatalysts graphene-wrapped Cu-Pt/rTiO2 be synthesized. A systematic study of CO2 photoreduction performance of graphene-wrapped Cu-Pt/rTiO2 was conducted using the on-line GC system with SiO2 fiber as the substrate. Under AM1.5 G simulated sunlight, the graphene-wrapped Cu-Pt/rTiO2 @ SiO2 produced carbon monoxide (394.84 μmol g-1cat 1. h−1) from CO2 with remarkable selectivity reaching 99%. Over 7 h of illumination period, the prepared sample was showing excellent stability with no decrease in origin CO2 conversion rate. Elemental mapping and transmission electron microscopy images confirmed Cu-Pt bi-metal nanoparticles deposited on the surface of TiO2 nanoparticles. The Inert gas control group test confirmed that carbon monoxide products originate from CO2.-
dc.languageeng-
dc.publisherKe Ai Publishing Communications Ltd. The Journal's web site is located at http://www.keaipublishing.com/en/journals/materials-science-for-energy-technologies/-
dc.relation.ispartofMaterials Science for Energy Technologies-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectCO2 conversion-
dc.subjectPhotocatalysis-
dc.subjectReduced TiO2-
dc.subjectPhotoreduction-
dc.titleEfficient sunlight driven CO2 reduction on Graphene-wrapped Cu-Pt/rTiO2 @ SiO2-
dc.typeArticle-
dc.identifier.emailCheng, R: crra@HKUCC-COM.hku.hk-
dc.identifier.emailLeung, YCD: ycleung@hku.hk-
dc.identifier.emailFeng, SPT: hpfeng@hku.hk-
dc.identifier.authorityLeung, YCD=rp00149-
dc.identifier.authorityFeng, SPT=rp01533-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1016/j.mset.2020.09.001-
dc.identifier.hkuros315436-
dc.identifier.volume3-
dc.identifier.spage734-
dc.identifier.epage741-
dc.publisher.placeChina-

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