无机材料学报 ›› 2015, Vol. 30 ›› Issue (5): 529-534.DOI: 10.15541/jim20140448 CSTR: 32189.14.10.15541/jim20140448

• 研究论文 • 上一篇    下一篇

原位晶化法在铜网上快速合成Cu3(BTC)2基膜及其催化性能研究

华成江, 王明辉, 栾国有, 刘 岩, 吴 华   

  1. (吉林农业大学 资源与环境学院, 长春130118)
  • 收稿日期:2014-09-02 修回日期:2014-11-08 出版日期:2015-05-20 网络出版日期:2015-04-28
  • 作者简介:华成江(1988–), 男, 硕士研究生. E-mail: 891492548@qq.com
  • 基金资助:

    国家自然科学基金(2110605); 吉林农业大学科研启动基金(201218)

Rapid in situ Crystallization and Catalytic Performance of Cu3(BTC)2-based Film on Copper Mesh

HUA Cheng-Jiang, WANG Ming-Hui, LUAN Guo-You, LIU Yan, WU Hua   

  1. (College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China)
  • Received:2014-09-02 Revised:2014-11-08 Published:2015-05-20 Online:2015-04-28
  • About author:HUA Cheng-Jiang. E-mail: 891492548@qq.com
  • Supported by:

    National Natural Science Foundation of China (2110605); Jilin Agricultural University Research Start-Up Funded Projects (201218)

摘要:

在常温条件下, 采用原位晶化法在铜网载体上合成了包含Keggin型杂多酸H3PMo12O40的Cu3(BTC)2(BTC= 1, 3, 5-均苯三甲酸)基金属-有机框架膜材料。利用XRD、FT-IR和SEM等方法对膜的结构、成分及形貌进行了表征。含磷钼杂多酸的Cu3(BTC)2基薄膜均匀地覆盖在铜丝表面上, 膜厚度约为8 μm, 晶体尺寸均一, 且融合生长。合成过程中, 经过预处理的铜网本身既是载体又是铜源。研究发现加入H2O2能有效地促进膜的合成。铜网负载的薄膜作为非均相催化剂, 在H2O2氧化降解罗丹明B的化学反应中表现出很高的催化活性, 反应100 min后, 降解率可达98%。膜催化剂重复使用三次, 均表现出较高的催化性能。

关键词: 金属-有机框架膜, 原位晶化, 铜网, 杂多酸, 罗丹明B降解, 催化氧化

Abstract:

Cu3(BTC)2-based (BTC=1, 3, 5-benzenetricarboxylic acid) metal-organic framework film was synthesized on the surface of copper mesh through in situ crystallization at room temperature. In this film, Keggin-type H3PMo12O40 was embedded in partial cavity of Cu3(BTC)2. The film was characterized by X-Ray powder diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectrometer (FT-IR). The surface of copper fiber was evenly covered by the film. It can be estimated that the thickness of film is about 8 μm. In the synthesis process, the role of copper is not only a support, but also a copper source. H2O2 played an important role in synthesis process of membrane, and adding proper H2O2 could accelerate reactive speed effectively. As a heterogeneous catalyst, the catalytic property of the sample was tested through rhodamine B degradation. The film exhibited good catalytic performance in the reaction of rhodamine B degradation. After reaction for 100 min, the degradation degree of rhodamine B reached 98%. The catalyst was reused for three times, and every time it exhibited good catalytic performances during the processes.

Key words: metal-organic framework film, in situ crystallization, copper mesh, polyoxometalate, degradation of Rhodamine B, catalytic oxidation

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