Email this article INVESTIGATING THE EFFECT OF APTES PRECURSORS ON THE FORMATION OF Fe3O4/ZnO NANOCOMPOSITES
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Received: 26/08/20 Revised: 14/11/20 Published: 27/11/20Authors
1. Doan Thi Thuy Phuong, University of Transport and Communications2. Nguyen Phuong Lam, HUS High School for Gifted Students - Vietnam National University
3. Do The Quang, HUS High School for Gifted Students - Vietnam National University
4. Chu Tien Dung
, University of Transport and Communications
Abstract
The paper presents the effect of 3-aminopropyl triethoxysilane (APTES) on the compositions and properties of multifunctional magnetic - semiconductor nanocomposites - Fe3O4/ZnO, which are synthesized by physical chemistry method. The results of X-ray diffraction, X-ray energy dispersive scattering indicate that the multifunctional nanocomposites contain the magnetic phase of Fe3O4 and the semiconductor phase of ZnO simultaneously. Meanwhile, the results of the vibrating sample magnetometer show that the Fe3O4/ZnO nanocomposites exhibit superparamagnetic properties with high saturation magnetization at room temperature (33.5 - 38.6 emu/g), which can be applied to quickly separate and attract pollutants, and reuse nanocomposites in the environmental treatment. The ultraviolet-visible absorption spectra of the nanocomposites are large extending from the near-ultraviolet to visible light. In particular, in the Fe3O4/ZnO3,5 nanocomposite has the absorption peak shifted to visible light, and the absorption spectrum spread in the range 340 - 410 nm, promising for applications in photocatalytic treatment under the impact of natural light.
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