Selective Dye Adsorption by Highly Chemical Stable Metal-Organic Framework
Paper ID : 1296-ICNS
salman ahmadipouya *1, Hossein Molavi2, farhad Ahmadijokani3, Rahman Mohammadkhani2, Mohammad Arjmand3
1department of chemical and petroleum engineering sharif university of technology
2Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
3School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7 Canada
A highly stable metal-organic framework (MOF), UiO-66 (an abbreviation standing for University of Oslo) has been synthesized and applied to the adsorptive removal of anionic (methyl red, MR, and methyl orange, MO) and cationic (malachite green, MG, and methylene blue, MB) dyes from contaminated water. For the first time, in this work, the structural stability of UiO-66 in dimethylformamide at 30°C was investigated for one year. The results obtained from XRD and BET analysis indicate that UiO-66 is highly stable in dimethylformamide. Adsorption kinetics were determined from the experimental data, and the results indicate that the pseudo- second-order model matched well for the adsorption of cationic and anionic dyes onto UiO-66. The adsorption selectivity of UiO-66 for MO and MB was also studied, and the results indicate that UiO-66 displays much adsorption capacity for MO than for MB, which attributed to high electrostatic interactions of anionic dye with this adsorbent.
UiO-66, Selective adsorption, Dye adsorption, Highly chemical stable
Status : Abstract Accepted (Poster Presentation)