Synthesis of MIL-53(Al)@rGO Composite and Its application in Congo Red Removal from Aqueous Media

Hoang Thi Linh Giang; Nguyen Duc Quan; Dao Van Thanh; Bui Phuong Linh; Nguyen Thi Tuyet Mai; Dang Thi Minh Hue

doi:10.62239/jca.2024.021

Authors

Hoang Thi Linh Giang School of Chemistry and Life Science, Hanoi University of Science and Technology
Nguyen Duc Quan School of Chemistry and Life Science, Hanoi University of Science and Technology
Dao Van Thanh School of Chemistry and Life Science, Hanoi University of Science and Technology
Bui Phuong Linh School of Chemistry and Life Science, Hanoi University of Science and Technology
Nguyen Thi Tuyet Mai School of Chemistry and Life Science, Hanoi University of Science and Technology
Dang Thi Minh Hue School of Chemistry and Life Science, Hanoi University of Science and Technology

DOI:

https://doi.org/10.62239/jca.2024.021

Keywords:

Metal-organic framework, MIL-53(Al), reduced graphene oxide, dye adsorption, congo red

Abstract

The MIL-53(Al)@rGO composite was prepared by a simple one-pot solvothermal method. The material was characterized by X-ray diffraction (XRD), scanning electron spectroscopy (SEM) and Fourier-transform infrared (FT-IR) techniques. The result shows the uniform loading of MIL-53(Al) particles with the porous morphology onto the rGO substrate. Adsorption performances of MIL-53(Al)@rGO and MIL-53(Al) for congo red (CR) were studied. It reveals that the adsorption equilibrium was reached after 15 minutes, and the adsorption efficiency of MIL-53(Al)@rGO (93.45%) is better than the virgin MIL-53(Al) (70.03%). The adsorption kinetics of the composite are fit with Langmuir isothermal adsorption model with the maximum capacity of 128.21 mg/g.

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