Plasma treated Bi2WO6 ultrathin nanosheets with oxygen vacancies for improved photocatalytic CO2 reduction,Inorganic Chemistry Frontiers

当前位置： X-MOL 学术 › Inorg. Chem. Front. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Plasma treated Bi2WO6 ultrathin nanosheets with oxygen vacancies for improved photocatalytic CO2 reduction
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2019/12/02 , DOI: 10.1039/c9qi01370a
Qidi Li _{1,

2,

3,

4,

5} , Xingwang Zhu _{1,

2,

3,

4,

5} , Jinman Yang _{1,

2,

3,

4,

5} , Qing Yu _{1,

2,

3,

4,

5} , Xianglin Zhu _{1,

2,

3,

4,

5} , Jinyu Chu _{1,

2,

3,

4,

5} , Yansheng Du _{1,

2,

3,

4,

5} , Chongtai Wang _{5,

6,

7,

8,

9} , Yingjie Hua _{5,

6,

7,

8,

9} , Huaming Li _{1,

2,

3,

4,

5} , Hui Xu _{1,

2,

3,

4,

5}

Affiliation

Oxygen vacancies on photocatalyst surfaces have a significant effect on the improvement of photocatalytic CO₂ reduction performance. Plasma treatment can quickly and efficiently introduce oxygen vacancies on catalyst surfaces. In this work, we used plasma to treat Bi₂WO₆ ultrathin nanosheets to create more surface oxygen vacancies. Increasing oxygen vacancies on the surface of Bi₂WO₆ not only increases the catalyst's ability to absorb light, but also greatly promotes the separation of photogenerated electrons and holes. In addition, increasing the catalyst specific surface area provides more reaction sites due to plasma etching. In photocatalytic CO₂ reduction, Bi₂WO₆ ultrathin nanosheets with more oxygen vacancies showed excellent activity, and the CO production rate was 40.6 μmol g⁻¹ h⁻¹. Our research provides a simple and fast pathway to improve the CO₂ reduction performance of photocatalysts.

中文翻译：

等离子体处理的Bi2WO6超薄纳米片具有氧空位，可改善光催化CO2的还原

光催化剂表面上的氧空位对改善光催化CO ₂还原性能具有显著作用。等离子体处理可以快速有效地在催化剂表面引入氧空位。在这项工作中，我们使用等离子体处理Bi ₂ WO ₆超薄纳米片，以创建更多的表面氧空位。Bi ₂ WO ₆表面氧空位的增加不仅增加了催化剂吸收光的能力，而且大大促进了光生电子和空穴的分离。另外，由于等离子体蚀刻，增加催化剂的比表面积提供了更多的反应部位。在光催化还原CO _2中，Bi ₂具有更多氧空位的WO ₆超薄纳米片表现出优异的活性，并且CO产生速率为40.6μmolg ^-1 h ^-1。我们的研究提供了一种简单快速的途径来提高光催化剂的CO ₂还原性能。

更新日期：2020-02-13

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11