Facile synthesis of Sb2WO6 with gradient oxygen vacancies for high photocatalytic activity

Jun Zhang; Yu Cui; Yi Lin; Yalu Tang; Yanlong Yu; Sai Yan; Benling Gao; Paul K. Chu

doi:10.1063/5.0230748

Facile synthesis of Sb₂WO₆ with gradient oxygen vacancies for high photocatalytic activity

Jun Zhang^*
, Yu Cui
, Yi Lin
, Yalu Tang
, Yanlong Yu
, Sai Yan
, Benling Gao
, Paul K. Chu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

1 Citation (Scopus)

14 Downloads (CityUHK Scholars)

Abstract

The Sb₂WO₆ photocatalyst is synthesized by introducing oxygen vacancies through acetylene annealing. The number of oxygen vacancies can be adjusted by varying the annealing duration. Oxygen vacancy defects in Sb₂WO₆ change the surface chemical properties, enhance the separation of carriers, broaden the absorption of visible light, and activate the catalytic sites, resulting in overall enhancement of the photocatalytic properties. The significance of surface oxygen vacancies and pertinent mechanisms of photocatalytic oxidation are described. Our results reveal a promising method to improve the properties of Sb₂WO₆-based materials for applications such as the treatment of wastewater. © 2024 Author(s).

Original language	English
Article number	105327
Journal	AIP Advances
Volume	14
Issue number	10
Online published	22 Oct 2024
DOIs	https://doi.org/10.1063/5.0230748
Publication status	Published - Oct 2024

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

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title = "Facile synthesis of Sb2WO6 with gradient oxygen vacancies for high photocatalytic activity",

abstract = "The Sb2WO6 photocatalyst is synthesized by introducing oxygen vacancies through acetylene annealing. The number of oxygen vacancies can be adjusted by varying the annealing duration. Oxygen vacancy defects in Sb2WO6 change the surface chemical properties, enhance the separation of carriers, broaden the absorption of visible light, and activate the catalytic sites, resulting in overall enhancement of the photocatalytic properties. The significance of surface oxygen vacancies and pertinent mechanisms of photocatalytic oxidation are described. Our results reveal a promising method to improve the properties of Sb2WO6-based materials for applications such as the treatment of wastewater. {\textcopyright} 2024 Author(s).",

author = "Jun Zhang and Yu Cui and Yi Lin and Yalu Tang and Yanlong Yu and Sai Yan and Benling Gao and Chu, \{Paul K.\}",

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T1 - Facile synthesis of Sb2WO6 with gradient oxygen vacancies for high photocatalytic activity

AU - Zhang, Jun

AU - Cui, Yu

AU - Lin, Yi

AU - Tang, Yalu

AU - Yu, Yanlong

AU - Yan, Sai

AU - Gao, Benling

AU - Chu, Paul K.

PY - 2024/10

Y1 - 2024/10

N2 - The Sb2WO6 photocatalyst is synthesized by introducing oxygen vacancies through acetylene annealing. The number of oxygen vacancies can be adjusted by varying the annealing duration. Oxygen vacancy defects in Sb2WO6 change the surface chemical properties, enhance the separation of carriers, broaden the absorption of visible light, and activate the catalytic sites, resulting in overall enhancement of the photocatalytic properties. The significance of surface oxygen vacancies and pertinent mechanisms of photocatalytic oxidation are described. Our results reveal a promising method to improve the properties of Sb2WO6-based materials for applications such as the treatment of wastewater. © 2024 Author(s).

AB - The Sb2WO6 photocatalyst is synthesized by introducing oxygen vacancies through acetylene annealing. The number of oxygen vacancies can be adjusted by varying the annealing duration. Oxygen vacancy defects in Sb2WO6 change the surface chemical properties, enhance the separation of carriers, broaden the absorption of visible light, and activate the catalytic sites, resulting in overall enhancement of the photocatalytic properties. The significance of surface oxygen vacancies and pertinent mechanisms of photocatalytic oxidation are described. Our results reveal a promising method to improve the properties of Sb2WO6-based materials for applications such as the treatment of wastewater. © 2024 Author(s).

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DO - 10.1063/5.0230748

M3 - RGC 21 - Publication in refereed journal

SN - 2158-3226

VL - 14

JO - AIP Advances

JF - AIP Advances

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