高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (7): 1391.

• 研究论文 • 上一篇    下一篇

铜卟啉-TiO2复合光催化剂制备及降解4-NP的研究

吕向菲, 李珺, 王晨, 段明玥, 刘惊宙, 刘瑞平, 张逢星   

  1. 西北大学化学与材料科学学院, 合成与天然功能分子化学教育部重点实验室, 西安 710069
  • 收稿日期:2010-01-06 出版日期:2010-07-10 发布日期:2010-07-10
  • 通讯作者: 李珺, 女, 博士, 教授, 博士生导师, 主要从事卟啉合成及光敏化催化研究. E-mail: junli@nwu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20971103)资助.

Preparation and Photocatalysis Study for 4-NP Degradation of Copper Porphyrin-TiO2 Composites

LÜ Xiang-Fei, LI Jun*, WANG Chen, DUAN Ming-Yue, LIU Jing-Zhou, LIU Rui-Ping, ZHANG Feng-Xing   

  1. Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi′an 710069, China
  • Received:2010-01-06 Online:2010-07-10 Published:2010-07-10
  • Contact: LI Jun. E-mail: junli@nwu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20971103)资助.

摘要:

合成了取代基数目不同的3种铜卟啉配合物, 并与纯锐钛矿型TiO2作用, 得到相应的铜卟啉敏化TiO2复合光催化剂. 采用扫描电子显微镜(SEM)考察了铜卟啉-TiO2复合光催化剂的形貌特征, 紫外-可见光谱和X射线衍射(XRD)分析结果表明, 铜卟啉负载于TiO2表面, 未改变TiO2的晶型. 可见光降解4-硝基苯酚(4-NP)实验结果表明, 复合催化剂性质稳定, 可多次重复使用, 卟啉环外围极性取代基数目越多, 铜卟啉光敏化效果越好.

关键词: 铜卟啉; 光敏化TiO2; 光催化剂

Abstract:

Based on the three synthesized porphyrin derivatives and their corresponding metallic complexes, the photocatalytic activity of anatase TiO2 samples impregnated with CuP were investigated by carrying out the photodegradation of 4-nitrophenol(4-NP) in aqueous suspension and under visible light. The photocatalysts were characterized by SEM, XRD and UV-Vis. The photocatalysts show good stability under irradiation conditions and they continued to maintain good photocatlytic activity also after several cycles.With increasing the substituents, the photocatalytic efficiency of CuP-TiO2 photocatalyst improved under visible light.

Key words: Copper porphyrin; Photosensitized TiO2; Photocatalyst

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