WO3/Fe2TiO5 Composite Photoanode Deposited via Electrospray for Enhanced Photoelectrochemical Water Splitting

doi:10.19894/j.issn.1000-0518.210464

Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (4): 694-696.DOI: 10.19894/j.issn.1000-0518.210464

• communication • Previous Articles

WO₃/Fe₂TiO₅ Composite Photoanode Deposited via Electrospray for Enhanced Photoelectrochemical Water Splitting

Xiao-Feng WU, De-Shun CHEN, Wei MA, Ke-Ke HUANG()

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry，College of Chemistry，Jilin University，Changchun 130012，China

Received:2021-09-13 Accepted:2021-11-16 Published:2022-04-01 Online:2022-04-19
Contact: Ke-Ke HUANG
About author:kkhuang@jlu.edu.cn
Supported by:
the National Natural Science Foundation of China(21801090);the Education Department of Jilin Province(JJKH20211044KJ);the Project on Experimental Technique of Jilin University(409020720202)

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Abstract

Abstract:

Heterojunction construction is one of efficient routes for improving light response and carrier transport of semiconductor. Here， nanostructured WO₃ and Fe₂TiO₅ films were sequentially deposited on the fluorine-doped SnO₂ （FTO） coated glass substrate by two electrospray steps， and the performance of as-prepared photoanode was studied in detail. Benefited from the complex surface structure in nano-micro scale， the trapping ability of photons and the active area for water oxidation reaction are enhanced effectively. More importantly， the photo-generated charge carrier recombination is restrained by the heterojunction formed at the interface of WO₃ and Fe₂TiO₅ and the charge transfer is accelerated due to the presence of built-in potential， which promotes the photoelectrochemical water splitting performance. The photocurrent density of WO₃/Fe₂TiO₅ photoanode is 1.4 and 4.6 fold larger than those of pristine Fe₂TiO₅ at 1.23 V （vs.RHE） and 1.6 V （vs.RHE）， respectively.

Key words: Photoelectrochemical, Heterojunction, Electrospray, Water Splitting, Photoanode

CLC Number:

O611.3

Xiao-Feng WU, De-Shun CHEN, Wei MA, Ke-Ke HUANG. WO₃/Fe₂TiO₅ Composite Photoanode Deposited via Electrospray for Enhanced Photoelectrochemical Water Splitting[J]. Chinese Journal of Applied Chemistry, 2022, 39(4): 694-696.

Figures/Tables 2

References 9

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WO₃/Fe₂TiO₅ Composite Photoanode Deposited via Electrospray for Enhanced Photoelectrochemical Water Splitting

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