期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 234, 期 -, 页码 287-292出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2016.07.039
关键词
Zeolitic imidazolate framework; ZIF-8; ZIF-67; Triethylamine; Dye adsorption
类别
资金
- Jiangsu Specially-Appointed Professor Program [201411]
- Natural Science Key Project of the Jiangsu Higher Education Institutions [15KJA220001]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
ZIF-8 and ZIF-67 were prepared by using mixed-base ammonium hydroxide and triethylamine (TEA). These two bases could promote the ZIF synthesis, and the yields are significantly improved. The texture structure and morphologies of ZIF prepared with mixed-base also have obvious changes. Three typical dyes, neutral rhodamine B (RB), anionic methyl orange (MO) and cationic methylene blue (MB), were examined for the dye adsorption by using various ZIFs. ZIF-8 and ZIF-67 prepared with TEA have enhanced RB adsorptions that are 2.3-3.8 times of those prepared without TEA, and ZIF-8 exhibited better adsorption performance than ZIF-67. For MO adsorption, ZIF-67 crystals have better adsorption performance than ZIF-8, and ZIF-67 prepared with TEA has a decreased MO adsorption. For MB adsorption, the addition of TEA does not change the MB adsorption for both ZIF-8 and ZIF-67. (C) 2016 Elsevier Inc. All rights reserved.
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