N2/Ar 等离子体改性对 CuO/TiO2 可见光光催化活性的影响

doi:10.1016/S1872-2067(14)60143-1

催化学报 ›› 2014, Vol. 35 ›› Issue (10): 1752-1760.DOI: 10.1016/S1872-2067(14)60143-1

N₂/Ar 等离子体改性对 CuO/TiO₂ 可见光光催化活性的影响

罗正维, 江晖, 胡龙志, 李丹, 耿文华, 韦萍

南京工业大学生物与制药工程学院, 江苏南京 211816

收稿日期:2014-03-27 修回日期:2014-05-12 出版日期:2014-09-28 发布日期:2014-09-30
通讯作者: 耿文华
基金资助:
江苏省自然科学基金（BK2011808）；江苏省高校自然科学研究项目（10KJB61005）；教育部留学回国人员科研启动基金（教外司留[2011]1568号）；南京工业大学青年教师学术基金（39707003）.

Effect of N₂/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO₂

Zhengwei Luo, Hui Jiang, Longzhi Hu, Dan Li, Wenhua Geng, Ping Wei

College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China

Received:2014-03-27 Revised:2014-05-12 Online:2014-09-28 Published:2014-09-30
Supported by:
This work was supported by the Natural Science Foundation of Jiangsu Province of China (BK2011808), the Natural Science Foundation of the Jiangsu Higher Education Institutions (10KJB61005), Scientific Research Foundation of Returnees of Ministry of Education ([2011]1568), and Academic Foundation of Young Teacher of Nanjing Tech University (39707003).

摘要/Abstract

摘要：

研究了N₂/Ar介质阻挡放电处理对负载CuO的TiO₂可见光光催化活性的影响. 采用X射线衍射、紫外-可见分光吸收光谱、透射电镜、X射线光电子能谱和电子自旋共振进行了表征，详细考察了等离子改性参数包括气氛组成、处理时间和处理功率对改性效果的影响，并通过降解甲基橙溶液考察了可见光光催化活性. 结果表明，最佳等离子处理条件为N₂与Ar比例为8：2，处理时间为20 min，放电电流为1.0 A. 最后，使用改性后的光催化剂对模拟含汞废水进行了处理.

关键词: 二氧化钛, 等离子体, 改性, 氮掺杂, 汞

Abstract:

The effect of N₂/Ar dielectric barrier discharge plasma on the photocatalytic activity of CuO/TiO₂ under visible light irradiation was studied. The photocatalysts were characterized by X-ray diffraction, ultraviolet-visible spectrophotometry, transmission electron microscopy, X-ray photoelectron spectroscopy, and electron paramagnetic resonance spectroscopy. The plasma parameters including gas composition, treatment time, and plasma power were investigated. The activities of the plasma-treated photocatalysts were evaluated by the photodegradation of methyl orange under visible light illumination. The optimal operation conditions were N₂:Ar = 8:2, treatment time of 20 min, and a discharge current of 1.0 A. Simulated mercury-containing wastewater was treated by the photocatalysts.

Key words: Titanium dioxide, Plasma, Modification, Nitrogen doping, Mercury

罗正维, 江晖, 胡龙志, 李丹, 耿文华, 韦萍. N₂/Ar 等离子体改性对 CuO/TiO₂ 可见光光催化活性的影响[J]. 催化学报, 2014, 35(10): 1752-1760.

Zhengwei Luo, Hui Jiang, Longzhi Hu, Dan Li, Wenhua Geng, Ping Wei. Effect of N₂/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO₂[J]. Chinese Journal of Catalysis, 2014, 35(10): 1752-1760.

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N₂/Ar 等离子体改性对 CuO/TiO₂ 可见光光催化活性的影响

Effect of N₂/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO₂

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