辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2021, Vol. 41 ›› Issue (6): 42-47.DOI: 10.3969/j.issn.1672-6952.2021.06.008

• 材料科学与新能源 • 上一篇    下一篇

CNTs/Bi12O17Cl2光催化剂的制备及其光降解罗丹明B性能

李杰(), 方可欣, 姚丽珠()   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 收稿日期:2020-12-10 修回日期:2021-02-27 出版日期:2021-12-25 发布日期:2021-12-28
  • 通讯作者: 姚丽珠
  • 作者简介:李杰(1998⁃),男,本科生,复合材料与工程专业,从事光催化剂的制备及性能方面的研究;E⁃mail:746309374@qq.com
  • 基金资助:
    辽宁省教育厅基本科研项目(L2020038);辽宁省大学生创新创业计划项目(201910148047)

Preparation and Photocatalytic Degradation Rhodamine B Properties of CNTs/Bi12O17Cl2 Photocatalyst

Jie Li(), Kexin Fang, Lizhu Yao()   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2020-12-10 Revised:2021-02-27 Published:2021-12-25 Online:2021-12-28
  • Contact: Lizhu Yao

摘要:

水的污染越来越严重,利用太阳光光催化降解水中的污染物在未来的发展中具有非常重要的作用。通过简单的化学沉淀法,将CNTs复合到Bi12O17Cl2表面上,得到一系列CNTs/Bi12O17Cl2复合材料,并用XRD、TEM、UV?vis DRS和PL表征方法对催化剂的结构特点、形貌特征和光学性质等方面进行了测量表证。结果表明,对比单一相Bi12O17Cl2,CNTs/Bi12O17Cl2复合材料表现出优异的降解污染物的活性、良好的光催化稳定性能和循环性能。通过捕获实验,发现超氧自由基(·O2-)与空穴(h+)是主要的活性物种,并推测其降解反应的可能机理。这项研究为提高催化剂的光催化性能提供了一种廉价、简便的改性方法,对其他高效光催化剂的合成具有一定的指导作用。

关键词: 光催化, CNTs, Bi12O17Cl2, 罗丹明B(RhB)

Abstract:

The pollution of water is becoming more and more serious, and photocatalytic degradation of pollutants in water by sunlight plays an important role in the future development. A simple chemical precipitation method was introduced. CNTs were compounded on the surface of Bi12O17Cl2 to obtain a series of CNTs/Bi12O17Cl2 composites. The structure, morphology and optical properties were measured and characterized by XRD, TEM, UV?Vis DRS and PL. The results show that compared with single?phase Bi12O17Cl2, CNTs/Bi12O17Cl2 composites show excellent pollutant degradation activity and good photocatalytic stability and cycling performance. It is found that superoxide radical (·O2-) and hole (h+) are the main active species through trapping experiments, and the possible degradation reaction mechanism is speculated. This study provides a cheap and simple modification method for improving the photocatalytic performance of the catalyst, and has a certain guiding role in the synthesis of other high efficiency photocatalysts.

Key words: Photocatalysis, CNTs, Bi12O17Cl2, Rhodamine B (RhB)

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引用本文

李杰, 方可欣, 姚丽珠. CNTs/Bi12O17Cl2光催化剂的制备及其光降解罗丹明B性能[J]. 辽宁石油化工大学学报, 2021, 41(6): 42-47.

Jie Li, Kexin Fang, Lizhu Yao. Preparation and Photocatalytic Degradation Rhodamine B Properties of CNTs/Bi12O17Cl2 Photocatalyst[J]. Journal of Liaoning Petrochemical University, 2021, 41(6): 42-47.

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