Silicon nanowires@Co3O4 arrays film with Z‑scheme band alignment for hydrogen evolution - Details

author：

Lu, K.-Q. (Lu, K.-Q..) ^[1] | Lin, X. (Lin, X..) ^[2] | Tang, Z.-R. (Tang, Z.-R..) ^[3] | Xu, Y.-J. (Xu, Y.-J..) ^[4]

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Abstract：

Photocatalytic　water　splitting　for　hydrogen　evolution　provides　an　attractive　strategy　for　clean,　low-cost,　and　environment-friendly　production　of　hydrogen　from　solar　energy.　Here,　the　film　composite　of　Co3O4　nanoparticles　decorated　well-defined　one-dimensional　(1D)　silicon　nanowires　arrays　(SiNWs@Co3O4)　are　constructed　by　employing　SiNWs　arrays　as　a　building　block　via　a　facile　calcination　approach.　In　comparison　with　bare　SiNWs　arrays,　the　resultant　SiNWs@Co3O4　arrays　composite　exhibits　distinctly　enhanced　photocatalytic　performance　for　the　evolution　of　hydrogen.　The　enhanced　photoactivity　is　attributed　to　the　formation　of　a　direct　Z-scheme　band　alignment　in　the　SiNWs@Co3O4　film　composite,　which　results　in　an　improved　spatial　separation　and　migration　of　photoinduced　electron-hole　pairs　as　compared　to　bare　SiNWs　under　light　irradiation.　Our　work　is　anticipated　to　promote　ongoing　interest　in　the　design　of　high-performance　artificial　1D-based　Z-scheme　film　photocatalysts　with　enhanced　performance.　©　2018　Elsevier　B.V.

Keyword：

1D arrays; Band alignment; Charge transfer; Composites; Silicon nanowires

Community：

[ 1 ] [Lu, K.-Q.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Lu, K.-Q.]College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Lin, X.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Lin, X.]College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Tang, Z.-R.]College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Xu, Y.-J.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Xu, Y.-J.]College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address：

[Xu, Y.-J.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou UniversityChina

Email：

yjxu@fzu.edu.cn

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Source ：

Catalysis Today

ISSN： 0920-5861

Year： 2019

Volume： 335

Page： 294-299

5 . 8 2 5

JCR@2019

5 . 2 0 0

JCR@2023

ESI HC Threshold：184

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 20

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 3

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