STUDY MAKE MATERIAL MAGNETIC AEROGEL ON GRAPHENE-BASED APPLICATION TO REMOVAL 2,4- DICHLOROPHENOXYACETIC ACID IN WATER

  • Nguyễn Thị Thu Hằng
  • Cao Phương Anh
  • Vũ Minh Châu
  • Đặng Minh Quang
  • Nguyễn Thị Thu Lý
Keywords: aerogel, 2,4-dichlorophenoxyacetic acid, graphene, nanocomposite, hấp phụ, oxit sắt từ.

Abstract

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.

điểm /   đánh giá
Published
2024-07-10