工业水处理 ›› 2019, Vol. 39 ›› Issue (9): 45-48. doi: 10.11894/iwt.2018-0711

• 试验研究 • 上一篇    下一篇

MIL-101的制备与吸附水中亚硝酸盐氮研究

商鹏溟, 贾瑛, 戴津星, 许国根   

  1. 火箭军工程大学导弹工程学院, 陕西西安 710025
  • 收稿日期:2019-07-27 出版日期:2019-09-20 发布日期:2019-10-09
  • 作者简介:商鹏溟(1994-),硕士在读。电话:15029095159,E-mail:yvetteer@163.com。
  • 基金资助:
    国家自然科学基金项目(21875281)

Preparation of MIL-101 and their adsorption capacities of nitrite nitrogen

Shang Pengming, Jia Ying, Dai Jinxing, Xu Guogen   

  1. School of Missile Engineering, Rocket Force University of Engineering, Xi'an 710025, China
  • Received:2019-07-27 Online:2019-09-20 Published:2019-10-09

摘要: 通过溶剂热法制备金属有机骨架材料(MOFs)MIL-101(Fe)和MIL-101(Fe)-NH2,并通过X射线衍射(XRD)、傅里叶红外光谱(FT-IR)、扫描电镜(SEM)进行表征。以水中的亚硝酸盐氮(NO2--N)为目标物,研究2种材料对其的吸附作用。结果表明,2种材料对NO2--N的吸附符合准二级动力学和Langmuir等温吸附模型,吸附平衡时间为5 h。由于氨基的存在,MIL-101(Fe)-NH2的吸附能力略优于MIL-101(Fe)。

关键词: 金属有机骨架材料, 吸附, 亚硝酸盐氮

Abstract: The metal organic frameworks(MOFs) materials,MIL-101(Fe) and MIL-101(Fe)-NH2,were prepared by the solvothermal method and characterized by XRD,FT-IR,and SEM. Then the adsorption effects of the MIL-101(Fe) and MIL-101(Fe)-NH2 on nitrite nitrogen were investigated. The results show that the adsorption kinetics of these two materials accords with the pseudo-second-order kinetics and Langmuir isotherm model. Besides,the time for adsorption equilibrium of nitrite nitrogen is 5 h. The adsorption capacity of MIL-101(Fe)-NH2 is slightly better than MIL-101(Fe) due to the presence of amidogen.

Key words: metal organic frameworks, adsorption, nitrite nitrogen

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