study and determine the isotherm of Metronidazole absorption with new Co-MOF nanostructure [[Co2(TATAB)(OH)(H2O)2].H2O.0.6O]n
الموضوعات :Seyedeh Elahe Hosseini 1 , محمد کاظم محمدی 2 , Ayeh Rayatzadeh 3 , Haman Tavakkoli 4 , Payam Hayati 5
1 - گروه شیمی، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
2 - گروه شيمي، واحد اهواز، دانشگاه آزاد اسلامي، اهواز، ايران
3 - Department of Chemistry, Ahvaz Branch, Islamic Azad university
4 - Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
5 - Department of Biotechnology and Life Sciences, University of Insubria, Via Jean Henry Dunant, 3, 21100 Varese, Italy
الکلمات المفتاحية: Adsorption, Metronidazole, Co-MOF, Removal, Isotherm ,
ملخص المقالة :
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The simple chemical synthesis method was used for the preparation of nano Co-MOF nanostructures. In this study, Co-MOF nanostructure was presented as a good, natural, and inexpensive adsorbent and successfully used for the removal of metronidazole dyes from various water solutions. The structural functionalities and morphological observations were confirmed by FESEM- XRD- FTIR- EDS- TEM. In this research, the effect of various parameters such as pH, dye concentration, amount of adsorbent, contact time, and temperature on the removal process for metronidazole was investigated. The adsorption process was dependent on pH, initial dye concentration, adsorbent dose, contact time, and temperature. The maximum removal was 99.5 % under optimal conditions. The isothermal adsorption data could be interpreted by the isothermal models of Langmuir and Freundlich. The experimental data agreed with Freundlich's adsorption isotherms. Optimized values for metronidazole removal were pH: 9, contact time: 120 minutes, dye concentration: 10 mg/ l, and catalyst mass: 0.04 g. Under these optimal conditions, the maximum removal efficiency reached 99.5%. |
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