Openmouthed Β-SiC hollow-sphere with highly photocatalytic activity for reduction of CO2 with H2O - Details

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Abstract：

A　novel　hollow　spherical　3D　structure　of　β-SiC　with　an　open　mouth　was　successfully　fabricated　by　an　environmentally　friendly　approach　starting　from　ethylsilicate　interaction　with　the　P123　and　glucose.　The　proposed　growth　mechanism　of　SiC　hollow　spheres　was　revealed　step　by　step　with　SEM　and　XRD.　When　the　as-prepared　SiC　was　applied　for　the　photocatalytic　reduction　of　CO2with　pure　water,　it　was　found　to　be　highly　active　for　the　conversion　CO2into　mainly　CH4hydrocarbon　products　due　to　its　unique　electronic　structure,　hollow　morphology　and　high　BET　surface　area.　Moreover,　the　photocatalytic　activity　of　the　hollow　spherical　SiC　can　be　greatly　improved　by　loading　Pt　cocatalyst.　The　optimal　2.0 wt%　Pt　loading　led　to　a　stable　CH4evolution　as　high　as　16.8 μmol/g/h　(or　376.4 μl/g/h)　with　the　simulated　solar　light　irradiation,　which　is　higher　than　that　of　many　reported　metal　oxides　(Pt/TiO2,　CdS/WO3,　Zn2GeO4,　CeO2and　g-C3N4/NaNbO3et　al.)　under　similar　experimental　conditions.　This　work　provides　a　new　strategy　for　the　architecture　of　thermally　and　chemically　stable　non-metallic　carbide　with　unique　hollow　spherical　structure　to　be　a　potential　nonmetallic　photocatalyst　for　CO2reduction　into　CH4.　©　2017　Elsevier　B.V.

Keyword：

Cadmium sulfide Carbides Electronic structure II-VI semiconductors Morphology Photocatalysis Photocatalytic activity Platinum Silicon carbide Silicon compounds Spheres

Community：

[ 1 ] [Wang, Ying]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China
[ 2 ] [Zhang, Lina]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China
[ 3 ] [Zhang, Xiaoyan]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China
[ 4 ] [Zhang, Zizhong]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China
[ 5 ] [Tong, Yuecong]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China
[ 6 ] [Li, Fuying]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China
[ 7 ] [Wu, Jeffrey C.-S.]Department of Chemical Engineering, National Taiwan University, Taipei; 10617, Taiwan
[ 8 ] [Wang, Xuxu]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, China

Reprint 's Address：

[zhang, zizhong]state key laboratory of photocatalysis on energy and environment, research institute of photocatalysis, college of chemistry, fuzhou university, china

Email：

z.zhang@fzu.edu.cn

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Source ：

Applied Catalysis B: Environmental

ISSN： 0926-3373

Year： 2017

Volume： 206

Page： 158-167

1 1 . 6 9 8

JCR@2017

2 0 . 3 0 0

JCR@2023

ESI HC Threshold：226

JCR Journal Grade：1

CAS Journal Grade：1

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 2

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