학술논문
Functionalized three-dimensional iron-based MIL with high adsorption for removing hazardous organics from water
Document Type
Article
Author
Source
Korean Journal of Chemical Engineering, 40(12), 285, pp.2892-2905 Dec, 2023
Subject
Language
English
ISSN
1975-7220
0256-1115
0256-1115
Abstract
MIL-53(Fe) as a three-dimensional MIL was prepared with different precursors-to-solvent ratios and denoted as MIL53B and MIL53C. All as-synthesized samples were modified using 3-amino propyl trimethoxy silane (organosilane) for synthesizing MIL53B/NH2(0.10), MIL53B/NH2(0.20), MIL53B/NH2(0.30), MIL53C/NH2(0.10), MIL53C/NH2(0.20), and MIL53C/NH2(0.30), respectively. The XRD, SEM, EDS, and FTIR techniques were used to characterize materials. The adsorption ability of the materials for the adsorption of dye (Direct Red 23) was studied. The effect of operational parameters was evaluated. The kinetics and isotherm of pollutant removal obeyed pseudo-second-order kinetic and the Langmuir models, respectively. The row and modified MIL53B indicated the adsorption capacity of 1,375 and 4,989 mg/g, respectively. The high pollutant removal ability and fast adsorption rate ascertain that the modified MIL53 could be considered as a dye adsorbent and potentially other organic molecules with similar structures from contaminated water.