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<p>Magnetic and structural properties of cellulose decorated with magnetite nanoparticles prepared via a co-precipitation method were analyzed. All samples presented magnetisation loops coherent with a superposition of superparamagnetic and ferromagnetic contributions. This feature is attributed to the size distribution of the magnetic nanoparticles and it was observed that weak and demagnetising inter-particle interactions are present. Magnetic parameters like coercivity and remanent magnetisation, however, are mainly governed by the average particle size, and not by such interactions. X-ray diffraction, transmission and scanning electron microscopy were employed for structural investigation, and revealed the presence of magnetite and goethite in some samples.</p>

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Synthesis and Characterization of Magnetic Cellulose Nanocomposites

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月23日

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  • Karolina Natasha Jarochewski,
  • Angélica Daiane Schneider,
  • Alana Torres Viero,
  • Cristiano Rodrigo Bohn Rhoden,
  • Lucio Strazzabosco Dorneles,
  • João Zorzi Konradt,
  • Artur Harres de Oliveira

摘要

Magnetic and structural properties of cellulose decorated with magnetite nanoparticles prepared via a co-precipitation method were analyzed. All samples presented magnetisation loops coherent with a superposition of superparamagnetic and ferromagnetic contributions. This feature is attributed to the size distribution of the magnetic nanoparticles and it was observed that weak and demagnetising inter-particle interactions are present. Magnetic parameters like coercivity and remanent magnetisation, however, are mainly governed by the average particle size, and not by such interactions. X-ray diffraction, transmission and scanning electron microscopy were employed for structural investigation, and revealed the presence of magnetite and goethite in some samples.