Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review

The use of photocatalysis and photoelectrocatalysis is expected to achieve the efficient utilization of solar energy to alleviate and even solve the problems of energy depletion and environmental pfollution. At present, stannous tungstate materials have attracted extensive attention in the fields of...

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Main Authors: Weixin Qiu, Yang Liu
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/23/9194
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author Weixin Qiu
Yang Liu
author_facet Weixin Qiu
Yang Liu
author_sort Weixin Qiu
collection DOAJ
description The use of photocatalysis and photoelectrocatalysis is expected to achieve the efficient utilization of solar energy to alleviate and even solve the problems of energy depletion and environmental pfollution. At present, stannous tungstate materials have attracted extensive attention in the fields of photocatalysis and photoelectrocatalysis as favorable candidates for such utilization because of their narrow band gap energy (which is ~1.7 eV for the α phase and ~2.7 eV for the β phase, respectively) and unique band structure (which covers the oxidation and reduction potential of water). However, their practical application is still limited by excessive electron–hole recombination and poor stability. In this review, basic information (crystal and electronic structures) related to photocatalysis and photoelectrocatalysis is presented. Additionally, various strategies to enhance the photocatalytic and photoelectrochemical properties of stannous tungstate materials, such as morphological modification, crystal facet engineering, doping modification, and multicomponent compositing, are summarized. Furthermore, the achievements and difficulties of the relevant studies are discussed. The information presented in this review can provide a reference for subsequent research on the photocatalytic and photoelectrochemical performance of tungstate-based materials.
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spelling doaj.art-c90b9a2e209945bbbc134d6d9e952cf62023-11-24T10:56:50ZengMDPI AGEnergies1996-10732022-12-011523919410.3390/en15239194Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A ReviewWeixin Qiu0Yang Liu1School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, ChinaSchool of Chemistry and Chemical Engineering, Central South University, Changsha 410083, ChinaThe use of photocatalysis and photoelectrocatalysis is expected to achieve the efficient utilization of solar energy to alleviate and even solve the problems of energy depletion and environmental pfollution. At present, stannous tungstate materials have attracted extensive attention in the fields of photocatalysis and photoelectrocatalysis as favorable candidates for such utilization because of their narrow band gap energy (which is ~1.7 eV for the α phase and ~2.7 eV for the β phase, respectively) and unique band structure (which covers the oxidation and reduction potential of water). However, their practical application is still limited by excessive electron–hole recombination and poor stability. In this review, basic information (crystal and electronic structures) related to photocatalysis and photoelectrocatalysis is presented. Additionally, various strategies to enhance the photocatalytic and photoelectrochemical properties of stannous tungstate materials, such as morphological modification, crystal facet engineering, doping modification, and multicomponent compositing, are summarized. Furthermore, the achievements and difficulties of the relevant studies are discussed. The information presented in this review can provide a reference for subsequent research on the photocatalytic and photoelectrochemical performance of tungstate-based materials.https://www.mdpi.com/1996-1073/15/23/9194stannous tungstatephotocatalysisphotoelectrocatalysiswater splittingdegradation
spellingShingle Weixin Qiu
Yang Liu
Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review
Energies
stannous tungstate
photocatalysis
photoelectrocatalysis
water splitting
degradation
title Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review
title_full Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review
title_fullStr Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review
title_full_unstemmed Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review
title_short Stannous Tungstate Semiconductor for Photocatalytic Degradation and Photoelectrochemical Water Splitting: A Review
title_sort stannous tungstate semiconductor for photocatalytic degradation and photoelectrochemical water splitting a review
topic stannous tungstate
photocatalysis
photoelectrocatalysis
water splitting
degradation
url https://www.mdpi.com/1996-1073/15/23/9194
work_keys_str_mv AT weixinqiu stannoustungstatesemiconductorforphotocatalyticdegradationandphotoelectrochemicalwatersplittingareview
AT yangliu stannoustungstatesemiconductorforphotocatalyticdegradationandphotoelectrochemicalwatersplittingareview