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

Zhang，Mingyang1; Wu，Muyan1; Wang，Zhenyu1,2; Cheng，Rui1; Leung，Dennis Y.C.1; Lu，Zhouguang2; Feng，Shien Ping1

2020

10.1016/j.mset.2020.09.001

Materials Science for Energy Technologies   影响因子和分区

2589-2991

The Photoreduction of CO provides a promising way to solving environmental issues. In this work, hydrogen-doped Titania powders were fabricated using NaBH heated with TiO 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 TiO. After wrapping with graphene oxide (GO) sheets, core-shell-structured photocatalysts graphene-wrapped Cu-Pt/rTiO be synthesized. A systematic study of CO photoreduction performance of graphene-wrapped Cu-Pt/rTiO was conducted using the on-line GC system with SiO fiber as the substrate. Under AM1.5 G simulated sunlight, the graphene-wrapped Cu-Pt/rTiO @ SiO produced carbon monoxide (394.84 μmol gcat 1. h) from CO with remarkable selectivity reaching 99%. Over 7 h of illumination period, the prepared sample was showing excellent stability with no decrease in origin CO conversion rate. Elemental mapping and transmission electron microscopy images confirmed Cu-Pt bi-metal nanoparticles deposited on the surface of TiO nanoparticles. The Inert gas control group test confirmed that carbon monoxide products originate from CO.

CO2 conversion Photocatalysis Photoreduction Reduced TiO2

EI

英语

其他

2-s2.0-85108155424

Scopus

1.Department of Mechanical Engineering,The University of Hong Kong,Pokfulam,Hong Kong
2.Department of Materials Science and Engineering,Southern University of Science and Technology,China

Zhang，Mingyang,Wu，Muyan,Wang，Zhenyu,et al. Efficient sunlight driven CO2 reduction on Graphene-wrapped Cu-Pt/rTiO2 @ SiO2[J]. Materials Science for Energy Technologies,2020,3:734-741.

Zhang，Mingyang.,Wu，Muyan.,Wang，Zhenyu.,Cheng，Rui.,Leung，Dennis Y.C..,...&Feng，Shien Ping.(2020).Efficient sunlight driven CO2 reduction on Graphene-wrapped Cu-Pt/rTiO2 @ SiO2.Materials Science for Energy Technologies,3,734-741.

Zhang，Mingyang,et al."Efficient sunlight driven CO2 reduction on Graphene-wrapped Cu-Pt/rTiO2 @ SiO2".Materials Science for Energy Technologies 3(2020):734-741.