Biopolymer-Assisted Green Synthesis of Iron Oxide Nanoparticles and Their Magnetic Properties

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• 作者：Shuyan Gao ; Youguo Shi ; Shuxia Zhang ; Kai Jiang ; Shuxia Yang ; Zhengdao Li ; Eiji Takayama-Muromachi
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：July 17, 2008
• 年：2008
• 卷：112
• 期：28
• 页码：10398 - 10401
• 全文大小：692K
• 年卷期：v.112,no.28(July 17, 2008)
• ISSN：1932-7455

文摘

Magnetite nanoparticles were fabricated using a biopolymer (sodium alginate)-assisted route via redox-based hydrothermal method using FeCl₃·6H₂O and urea as the starting materials. The morphology, composition, and phase structure of as-prepared powders were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results show that biopolymer plays dual roles, reduction, and stabilization, in the formation of the products. This method can be easily controlled and is expected to be applicable for the preparation of other metal oxides. The sample demonstrated a typical ferromagnetic behavior from a direct current SQUID magnetometer (Quantum Design MPMS).