Synthesis of Zeolitic - Imidazolate Framework – 67 in Ethanol by Using Ultrasonication

Van Duong Le1, , Quang Toan Dinh1, Thi Hai Anh Luong1, Ngoc Don Ta1
1 Hanoi University of Science and Technology, Hanoi, Vietnam

Main Article Content

Abstract

The ZIF-67 nanocrystal was successfully synthesized in ethanol as solvent by using ultrasound with shorter synthesis time as compared to solvo-thermal method. The synthesized ZIF-67 crystals were characterized by XRD, SEM, TEM, FT-IR, N2 adsorption-desorption and TGA/DTA. It was found that the ZIF-67 crystals were highly stable up to 350°C (in air), and have shown high crystallinity with a uniform crystallite size of around 50 nm (TEM), BET surface area of 1363 m²/g and Langmuir surface area of 1912 m²/g. Methylene blue absorption and photocatalysis of ZIF-67 nano-material were investigated. The results indicated the material is capable to promote photocatalysis to treat methylene blue; furthermore, the effect was enhanced with the addition of H₂O₂.

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References

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