Metal–organic framework MIL-125(Ti) for efficient adsorptive removal of Rhodamine B from aqueous solution

A metal–organic framework material, MIL-125(Ti), was solvothermally prepared and characterized using X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and surface area measurements. MIL-125(Ti) was then used as an adsorbent for Rhodamine B (RhB) removal in aqueous solution. The adsorption kinetics, adsorption mechanism, adsorption isotherm, activation energy and various thermodynamic parameters were studied in detail. The maximum adsorption capacity of MIL-125(Ti) for RhB was 59.92 mg g −1 . MIL-125(Ti) appears to be a promising material for RhB adsorption from aqueous solutions. Copyright © 2014 John Wiley & Sons, Ltd.