Synthesis of MIL-125(Ti)/Bagasse nanocomposite for efficient adsorption of Rhodamine B from aqueous solution
Paper ID : 1113-ICNS
Hesam Alamian *, Mahboubeh Tasviri
Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, 19839-69411, Iran.
In this paper, the adsorption properties of a new nanocomposite including Titanium-based metal-organic frameworks (MIL-125(Ti)) and bagasse towards Rhodamine B (a cationic dye) was investigated. Herein, terephthalic acid as an organic linker and titanium isopropoxide as a metal source used to synthesize MIL-125(Ti). Various syntheses with different weight percentages of MIL-125(Ti) and Bagasse have been performed to enhance the dye adsorption properties. XRD's pattern and SEM images were used to verify the synthesis of the nano-composite material and the surface area properties of the nano-composite material were extracted from the BET result. The adsorption power of removal Rhodamine B from aqueous solution was investigated. The desorption capacity of the as-synthesized composite was also investigated with the selected solvents such as Methanol, Ethanol, HCl and also different ratios of them. In addition, adsorption kinetics and thermodynamics were investigated carefully. The results presented that the dye adsorption increases with increasing temperature due to the endothermic reaction of the RhB adsorption. In addition, positive ΔH and ΔS values indicated the randomness nature of dye removal.
Titanium-based metal-organic frameworks; MIL-125, Bagasse, Rhodamine B; Adsorption; Desorption.
Status : Abstract Accepted (Poster Presentation)