Coupling Effect of Microwave and Mechanical Forces during the Synthesis of Ferrite Nanoparticles by Microwave-Assisted Ball Milling

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• 作者：Ding Chen ; Yingzhe Zhang ; Biyu Chen ; Zhitao Kang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：October 2, 2013
• 年：2013
• 卷：52
• 期：39
• 页码：14179-14184
• 全文大小：301K
• 年卷期：v.52,no.39(October 2, 2013)
• ISSN：1520-5045

文摘

A microwave-assisted ball milling process was used for low temperature synthesis of MgFe₂O₄ nanoparticles with high saturation magnetization. Four comparitive experiments, including boiling water assisted ball milling, microwave irradiation, regular ball milling, and microwave/ball milling alternative treatment, were also conducted to investigate the coupling effect of microwave and mechanical forces in the microwave-assisted ball milling process, which played a key role in the successful synthesis of MgFe₂O₄ nanoparticles. The concentrations of 鈥H radicals in the reaction solutions of these experiments were measured and used as an indicator for the solution reactivity. It showed that the concentration of 鈥H in microwave-assisted ball milling was much higher than that in microwave irradiation and regular stirring ball milling processes, confirming that the coupling of microwave and ball milling significantly enhanced the chemical reaction.