2-Methylimidazole-modifi ed Iron Metal-organic Framework as an Effi cient Methylene Blue Adsorbent
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Published:2022-11-30
Issue:6
Volume:49
Page:
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ISSN:0125-2526
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Container-title:Chiang Mai Journal of Science
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language:
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Short-container-title:CMJS
Author:
Zhao Yingxin, ,Hu Hao,Zhang Shengyu,Feng Shiya,Yang Yun,Li Xiongjian,Yang Shuijin, , , , , ,
Abstract
Metal organic frameworks have a wide range of applications in the fi eld of environmental remediation. In this study, Fe-BDC/Fe-2MI composites were synthesized by one-pot solvothermal method. By studying the adsorption performance of methylene blue (MB) in wastewater, it was confi rmed that Fe-BDC/Fe-2MI has excellent adsorption properties. When the initial molar ratio of FeCl3 .6H2O: H2BDC: 2-MI is 1:1.5:10, the adsorbent has the best adsorption performance. At the same time, the effects of different pH (2-10), temperature (303-323K) and initial concentration of adsorbate (30-90mg/L) on the adsorption capacity were further explored. It was found that when pH=6.0, T=303K was favorable for Fe-BDC/Fe-2MI to adsorb MB. The adsorption process conformed to the Langmuir isotherm adsorption model, indicating that it was a monolayer adsorption which was a good adsorption process. Thermodynamic parameters show that the adsorption process is a spontaneous exothermic reaction. These results demonstrated that Fe-BDC/Fe-2MI composites possess potential practical application value.
Publisher
Chiang Mai University
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Materials Science,General Mathematics,General Chemistry
Cited by
1 articles.
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