NGHIÊN CỨU CHẾ TẠO VẬT LIỆU AEROGEL SẮT TỪ TRÊN NỀN GRAPHENE ỨNG DỤNG LOẠI BỎ 2,4-DICHLOROPHENOXYACETIC ACID TRONG NƯỚC
Từ khóa:
aerogel, 2,4-dichlorophenoxyacetic acid, graphene, nanocomposite, hấp phụ, oxit sắt từ.Tóm tắt
In this article, material magnetic aerogel on graphene was prepared success by hydrothermal method and
its properties were evaluated using X-ray diffraction (XRD), scanning electron microscopy/X-ray energy
dispersive spectroscopy (FESEM/EDX), infrared spectroscopy (FT-IR), and vibration sample magnetization
(VSM). The results show that the magnetic iron oxide nanoparticles have a uniform morphology, an average
particle size of about 50-100 nm, are well dispersed on the graphene base, and the material's magnetism
reaches 20.66 emu/g. The experimental data were analyzed by Langmuir, Freundlich, Tempkin and DubininRadushkevich (D-R) models of adsorption. Utilizing experimental data, pseudo-first-order and pseudosecond-order kinetic models were evaluated. The 2,4-dichlorophenoxyacetic acid (2,4-D) adsorption on the
material was fitted to Freundlich isotherm and the maximum adsorption capacity was found to be 102.04
mg/g.
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