Surface oxygen vacancies on WO3 contributed to enhanced photothermo-synergistic effect
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- 作者：Yingying Li ; Changhua Wang ; Han Zheng ; Fangxu Wan ; Fei Yu ; Xintong Zhang ; xtzhang@nenu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yichun Liu
- 关键词：Phase transition in WO3 ; Photothermocatalytic ; Visible-NIR response ; Oxygen vacancy ; WO3
- 刊名：Applied Surface Science
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：391
- 期：part_PB
- 页码：654-661
- 全文大小：3326 K
文摘
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WO3 was annealed under air and hydrogen atomsphere.
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Phase transition from WO3 to WO2.72 to WO2 was observed after hydrogen treatment.
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WO3−x with optimized degree of oxygen deficiency displayed significant photothermocatalytic activity against degradation of acetaldehyde.
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Mechanism operating in photocatalytic and thermal effects is discussed.