Enhanced photoelectrochemical water splitting by a 3D hierarchical sea urchin-like structure: ZnO nanorod arrays on TiO2 hollow hemisphere - Details

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Abstract：

A　hierarchical　sea　urchin-like　hybrid　metal　oxide　nanostructure　of　ZnO　nanorods　deposited　on　TiO2　porous　hollow　hemispheres　with　a　thin　zinc　titanate　interface　layer　is　specifically　designed　and　synthesized　to　form　a　combined　type　I　straddling　and　type　II　staggered　junctions.　The　HHSs,　synthesized　by　electrospinning,　facilitate　light　trapping　and　scattering.　The　ZnO　nanorods　offer　a　large　surface　area　for　improved　surface　oxidation　kinetics.　The　interface　layer　of　zinc　titanate　(ZnTiO3)　between　the　TiO2　HHSs　and　ZnO　nanorods　regulates　the　charge　separation　in　a　closely　coupled　hierarchy　structure　of　ZnO/ZnTiO3/TiO2.　The　synergistic　effects　of　the　improved　light　trapping,　charge　separation,　and　fast　surface　reaction　kinetics　result　in　a　superior　photoconversion　efficiency　of　1.07%　for　the　photoelectrochemical　water　splitting　with　an　outstanding　photocurrent　density　of　2.8　mA　cm−2　at　1.23　V　versus　RHE.　©　2024　The　Author(s).　Published　by　IOP　Publishing　Ltd.

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mixed type I and II heterojunction photocatalytic water splitting sea urchin-like structure

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[ 1 ] [Lee W.C.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 2 ] [Fang Y.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 3 ] [Fang Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Le H.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 5 ] [Hodgson R.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 6 ] [Chan H.W.B.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 7 ] [Qian R.]National Centre for Inorganic Mass Spectrometry in Shanghai, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai, 200050, China
[ 8 ] [Alsohaimi I.H.]Chemistry Department, College of Science, Jouf University, PO Box 2014, Sakaka, Saudi Arabia
[ 9 ] [Canciani G.E.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 10 ] [Canciani G.E.]Ingénieur Dans La Métrologie Des Actinides a la CETAMA (CEA), Villeneuve-lès-Avignon, Occitanie, France
[ 11 ] [Alhar M.S.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom
[ 12 ] [Chen Q.]Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, United Kingdom

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Source ：

Nanotechnology

ISSN： 0957-4484

Year： 2024

Issue： 29

Volume： 35

2 . 9 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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