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Single Pd atoms supported on ultra-thin bismuth tungstate nanosheets with oxygen vacancies as an efficient photocatalyst

发布时间:2023-01-30点击次数:

  • 影响因子:14.511
  • DOI码:10.1039/D2TA07120G
  • 发表刊物:Journal of Materials Chemistry A
  • 摘要:Efficient and highly selective photocatalysts for NO oxidation remain a great challenge. In this work, single Pd atoms are deposited onto ultrathin bismuth tungstate (UBWO) nanosheets with O vacancies (Pd-VO-UBWO) by an impregnation combined with calcination method for the first time. The Pd-VO-UBWO catalysts exhibit efficient and highly selective photocatalytic activity for the degradation of NO. At a NO inlet concentration of 48 ppm, the NO conversion rate using the Pd-VO-UBWO catalyst is 89.5% within 1 h of visible light irradiation, which is much higher than that of VO-UBWO (45.7%). Its selectivity for NO conversion to NO3− ions is 78.5%. Moreover, experimental results show that the introduction of single Pd atoms promotes the generation of O2˙− and OH˙. Density functional theory calculations indicate that single Pd atoms favor the adsorption and activation of NO on the Pd-VO-UBWO surface, thus boosting the effective conversion of NO. Furthermore, the Pd-VO-UBWO catalyst can achieve higher degradation efficiency of Rhodamine B (86.9%) in liquid solution than VO-UBWO (68.8%).
  • 论文类型:期刊论文
  • 卷号:11
  • 页面范围:1723-1733
  • 是否译文:否
  • 发布期刊链接:https://pubs.rsc.org/en/content/articlehtml/2023/ta/d2ta07120g
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    博士生导师
    硕士生导师
  • 教师拼音名称:yuhesheng
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  • 所在单位:化工学院
  • 职务:Professor
  • 办公地点:中国矿业大学文昌校区综合楼203
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  • 学位:博士
  • 职称:教授
  • 毕业院校:加拿大滑铁卢大学

学术荣誉:

  • 2020当选:江苏特聘教授

曾获荣誉:

  • 2020-08-01江苏特聘教授
  • 2014-10-15加拿大国家自然科学基金工业博士后奖学金
  • 2020-08-01中国矿业大学“高端人才计划”攀登学者
  • 2019-06-01江苏省“六大人才高峰”高层次人才
  • 2018-06-28江苏省“双创博士”
  • 2016-08-01AIChE Journal Editor’s Choice Paper

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