Facile fabrication of sulfamic acid / Al-MIL-53 for Congo red removal | ||
| Mansoura Journal of Chemistry | ||
| Volume 45, Issue 3, August 2019, Pages 30-39 PDF (1.18 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjcc.2019.413013 | ||
| Abstract | ||
| Solvothermal method was used for preparation of AL-MIL-53 MOF and modified by different amounts of sulfamic acid (SA= 15, 25, 30, 50, and 60%) by impregnation method. MOFs were characterized by Fourier transform infrared spectrometry. This technique confirmed successful loading of sulfamic acid onto Al-MIL-53. The prepared samples were applied to the adsorption of Congo red dye (CR) from wastewater. The amount of adsorption increases by increasing amount of SA till reaches to 25%SA/MIL-53. After this percent of SA, the amount of adsorption decreases. It was obvious that the best adsorption occurs at pH=2. The isotherms and kinetics data were represented by Langmuir adsorption isotherm and pseudo 2nd order kinetic model. | ||
| Keywords | ||
| MOFs; Al-MIL-53; sulfamic acid; Adsorption; Congo red | ||
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