Synthesis of porous Cu-BTC with ultrasonic treatment: Effects of ultrasonic power and solvent condition

被引:57
作者
Israr, Farrukh [1 ]
Kim, Duk Kyung [2 ]
Kim, Yeongmin [1 ]
Oh, Seung Jin [3 ]
Ng, Kim Choon [3 ]
Chun, Wongee [1 ]
机构
[1] Jeju Natl Univ, Dept Nucl & Energy Engn, Jeju 690756, South Korea
[2] Auburn Univ, Dept Chem, Montgomery, AL 36117 USA
[3] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore
基金
新加坡国家研究基金会;
关键词
Cu-BTC; Ultrasonic power effect; Different solvent conditions; METAL-ORGANIC FRAMEWORKS; MICROWAVE SYNTHESIS; HYDROGEN STORAGE; CU-3(BTC)(2); SEPARATION; TEREPHTHALATE; EFFICIENT; MOFS; ADSORPTION;
D O I
10.1016/j.ultsonch.2015.08.023
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Cu-BTC (BTC = 1,3,5-benzenetricarboxylate) metal organic framework (MOF) was synthesized using different solvent conditions with ultrasonic treatment. Solvent mixtures of water/N,N-dimethylformamide (DMF), water/ethanol were used for the reactions with or without a variety of bases under 20 kHz ultrasonically treated conditions. Prepared crystals were purified through 30 min of sonication to remove unreacted chemicals. Treatment time and ultrasonic power effects were compared to get optimum synthetic condition. The characterization of MOF powders was performed by scanning electron microscopy, X-ray powder diffraction, infrared-spectroscopy, thermo-gravimetric analysis and specific surface determination using the BET method. Isolated crystal yields varied with different solvent and applied ultrasonic power conditions. A high isolated crystal yield of 86% was obtained from water/ethanol/DMF solvent system after 120 mm of ultrasonic treatment at 40% power of 750 W. Different solvent conditions led to the formation of Cu-BTC with different surface area, and an extremely high surface area of 1430 m(2)/g was obtained from the crystals taken with the solvent condition of water:DMF = 70:30. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:186 / 193
页数:8
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