ISSN: 0304-128X ISSN: 2233-9558
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Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received November 14, 2022
Revised December 19, 2022
Accepted January 13, 2023
This study was supported by the Research Program funded by the SeoulTech (Seoul National University of Science and Technology).
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Evaluation of Design of Experiments to Develop MOF-5 Adsorbent for Acetylene Capture

1Department of Energy & Chemical Engineering, Graduate School of Convergence Science, Seoul National University of Science and Technology, Seoul, 01811, Korea 2Department of Chemical & Biomolecular Engineering, Seoul National University of Science and Technology, Seoul, 01811, Korea
Korean Chemical Engineering Research, May 2023, 61(2), 322-327(6), 10.9713/kcer.2023.61.2.322 Epub 31 May 2023
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A design of experiments was evaluated in optimizing MOF-5 synthesis for acetylene adsorption. At first, mixture design was used to optimize precursor concentration, terephthalic acid, zinc acetate dihydrate and N,Ndimethylformamide. More specifically, 13 conditions with various molar ratios were designed by extreme vertices design method. After preparing the samples, XRD, N2 physisorption and SEM analysis were performed for their characterization. Moreover, acetylene adsorption experiments were carried out over the samples under identical conditions. The optimal precursor composition for MOF-5 synthesis was predicted on a molar basis as follows: terephthalic acid : acetate dihydrate : dimethylformamide = 0.1 : 0.4 : 0.5. Thereafter, multi-level factorial design was designated to investigate the effect of synthesis reaction conditions such as temperature, time and stirring speed. By the statistical analysis of 18 samples designed, 4 reaction parameters were determined for additional adsorption experiments. Therefore, MOF-5 prepared under the synthesis time and temperature of 100 ℃ and 12 h, respectively, showed the maximum adsorption capacity of 15.1 mmol/g. 


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