Comparative study of synthesis methods and pH-dependent adsorption of methylene blue dye on UiO-66 and NH2-UiO-66

被引：14
作者：
Daneshgar H. [1 ,2 ]
Sojdeh S. [1 ]
Salehi G. [1 ]
Edrisi M. [2 ]
Bagherzadeh M. [1 ]
Rabiee N. [3 ,4 ]
机构：
[1] Department of Chemistry, Sharif University of Technology, Tehran
[2] Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran
[3] Center for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, 6150, WA
[4] School of Chemistry, Damghan University, Damghan
来源：
Chemosphere | 2024年 / 353卷
关键词：
Adsorption kinetic; Methylene blue dye; MOFs; NH[!sub]2[!/sub]-UiO-66; UiO-66;
D O I：
10.1016/j.chemosphere.2024.141543
中图分类号：
学科分类号：
摘要：
Metal-organic frameworks (MOFs) are highly promising adsorbents with notable properties such as elevated adsorption capacities and versatile surface design capabilities. This study introduces two distinct synthesis methods, one lasting 1 h and the other 24 h, for UiO-66 and NH2-UiO-66. While both methods yield structures with comparable crystallinity and morphology, the adsorption performance of the cationic methylene blue dye varies at different pH levels. Despite the 24 h synthesis time being optimal for maximum adsorption in both MOFs, the relative difference in NH2-UiO-66 adsorption percentage at different times suggests reduced dependency on synthesis time for this property. Notably, NH2-UiO-66 exhibits consistent and effective performance across three pH levels, warranting further investigation into its adsorption kinetics and isotherm. The achievement of high adsorption efficiency coupled with a significantly reduced synthesis time underscores the importance of developing simplified synthetic methods, essential for enhancing the practical applicability of MOFs in diverse applications. © 2024 The Authors
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