期刊
APPLIED SCIENCES-BASEL
卷 12, 期 15, 页码 -出版社
MDPI
DOI: 10.3390/app12157468
关键词
metal-organic frameworks; UiO-66; palygorskite; methyl orange; dye adsorption
类别
资金
- French National Research Agency (ANR) under the Investments for the Future (program Make Our Planet Great Again) [ANR-18-MOPGA-0014]
- Democritus University of Thrace [82268]
A novel composite material containing UiO-66 and palygorskite clay mineral was synthesized using a facile one-pot synthesis process. The composite exhibited excellent adsorption efficiency and stability, demonstrating its potential as an advanced absorbent for MO removal.
Herein, a novel composite material containing UiO-66 and palygorskite (Pal) clay mineral was prepared using a facile one-pot synthesis process. The material was studied using a variety of techniques and applied as did not affect the structure of the metal-organic framework (MOF) part, but induced a small increase in specific surface area. The developed Pal/UiO-66 composite presented excellent adsorption efficiency against MO removal, as evidenced by detailed kinetic and isotherm experiments. An impressive maximum adsorption capacity at equilibrium was evidenced; 340 mg g(-1) at pH = 5 and T = 25 degrees C. This corresponds to a 34.5 % increase compared with pure UiO-66, considering only the MOF content. Furthermore, the Pal/UiO-66 composite was proven stable and highly recyclable, losing less than 9% of the removal capacity after five consecutive cycles. The study highlights the synergistic effect of the coupling of MOF structures with low-cost and abundant clay minerals for the development of advanced absorbents.
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