Synthesis of MIL-100(0.5Fe/0.5Ni) bimetallic organic framework material and its adsorption capacity for removing Rhodamine B dye in aqueous environment
DOI:
https://doi.org/10.62239/jca.2026.034Keywords:
bimetallic MOF, Rhodamine B, adsorption, kineticsAbstract
A bimetallic metal–organic framework, MIL-100(0.5Fe/0.5Ni), was successfully synthesized and applied for the adsorption of Rhodamine B (RhB) from aqueous solution. The obtained material was characterized by XRD, FTIR, and SEM analyses. The results confirmed the successful formation of the MIL-100 framework with a porous structure and abundant active sites. The adsorption behavior of RhB was investigated through isotherm and kinetic studies. The adsorption equilibrium was well described by the Langmuir model (R² = 0.9942) with a maximum adsorption capacity of 21.91 mg g⁻¹, indicating monolayer adsorption on homogeneous active sites. The adsorption kinetics followed the pseudo-second-order model (R² = 0.9815), suggesting that chemisorption was the dominant mechanism. The results demonstrate that MIL-100(0.5Fe/0.5Ni) is a promising adsorbent for dye-contaminated wastewater treatment.
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Copyright (c) 2026 Dang Thi Minh Hue, Bui Doan Anh, Nguyen Hoang Linh, Nguyen Phu Hung, Dao Thi Hong Ngat, Nguyen Khanh Linh, Hoang Huu Nghia, Nguyen Thi Tuyet Mai, Huynh Dang Chinh
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Trường Đại học Bách Khoa Hà Nội
Grant numbers T2024-PC-073
