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

Farrukh Israr; Duk Kyung Kim; Yeongmin Kim; Seung Jin Oh; Kim Choon Ng; Wongee Chun

doi:10.1016/j.ultsonch.2015.08.023

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

Ultrason Sonochem. 2016 Mar:29:186-93. doi: 10.1016/j.ultsonch.2015.08.023. Epub 2015 Aug 31.

Authors

Farrukh Israr¹, Duk Kyung Kim², Yeongmin Kim¹, Seung Jin Oh³, Kim Choon Ng³, Wongee Chun⁴

Affiliations

¹ Department of Nuclear and Energy Engineering, Jeju National University, Jeju 690-756, South Korea.
² Department of Chemistry, Auburn University at Montgomery, Montgomery, AL 36117, USA.
³ Mechanical Engineering Department, National University of Singapore, 9 Engineering Drive 1, 117576 Singapore, Singapore.
⁴ Department of Nuclear and Energy Engineering, Jeju National University, Jeju 690-756, South Korea. Electronic address: wgchun@jejunu.ac.kr.

PMID: 26584997
DOI: 10.1016/j.ultsonch.2015.08.023

Abstract

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 min 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.

Keywords: Cu-BTC; Different solvent conditions; Ultrasonic power effect.

Publication types

Research Support, Non-U.S. Gov't