• 文献标题:   Influence of temperature on structure, morphology, and magnetic property of graphene-MnFe2O4 nanocomposites synthesized by a combined hydrothermal/co-precipitation method
  • 文献类型:   Article
  • 作  者:   THU TV, THAO VD
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS AMATERIALS SCIENCE PROCESSING
  • ISSN:   0947-8396 EI 1432-0630
  • 通讯作者地址:   Duy Tan Univ
  • 被引频次:   0
  • DOI:   10.1007/s00339-018-2092-5
  • 出版年:   2018

▎ 摘  要

Combination of co-precipitation and hydrothermal methods is a promising route to synthesize various materials. Herein, we synthesized reduced graphene oxide/manganese ferrite (rGO/MnFe2O4) nanocomposites through combining a co-precipitation reaction of Mn2+ and Fe3+ ions in GO solution with subsequent hydrothermal treatment at different temperatures (80, 130, and 180 degrees C). The resulting rGO/MnFe2O4 nanocomposites were characterized using X-ray diffractometry, Fourier-transform infrared spectroscopy, scanning and transmission electron microscopy, and magnetic measurements at room temperature. The influence of hydrothermal temperature on structural, morphological, magnetic and As(III) adsorption properties of rGO/MnFe2O4 nanocomposites was studied. Increasing hydrothermal temperature leads to better crystallinity, magnetic properties, and As(III) adsorption capacity. At the hydrothermal temperature of 180 degrees C, the resulting rGO/MnFe2O4 nanocomposites exhibited a crystalline size of 37.2nm, saturated magnetization of 22.7 emu/g, and As(III) removal efficiency of 83% at neutral pH (pH approximate to 7).