Adsorption of Rhodamine B by Yttrium-Succinate Metal Organic Framework (MOF).

Rhodamine B is a basic (cationic) dye that is used in paint, textile, and paper industries which is very dangerous for the environment and human health when exists above 14 ng/L, its detection limit (LOD). Physical processing using the adsorption method was chosen in this study because of its effectiveness in absorbing various pollutants. A porous adsorbent that has high surface area employed was used, Yttrium-Succinate Metal Organic Framework (MOF). In this study, MOF was synthesized using succinic acid ligand with yttrium metal in N, NDimethylformamide (DMF) solvent using solvothermal method to be applied as an adsorbent of Rhodamine B dyes. The as-synthesized MOF was characterized using FTIR, TGA, XRD, SAA, and SEM. The adsorption capacity was determined by UV-Vis Spectrophotometer resulting the highest adsorption capacity at pH 9 and contact time 420 minutes of 0.39607 following the Langmuir Adsorption Isotherm. The results indicate that Yttrium-Succinate MOF is promising to be an adsorbent of Rhodamine B dyes. [ABSTRACT FROM AUTHOR]