Abstract

Well-crystallized manganese ferrite nanoparticles with mean size of 20 nm were synthesized at low temperature (≤100 °C) by ultrasound wave-assisted solid–liquid reaction ball milling technique without subsequent calcination. MnO2 were used as the raw material and iron milling balls with diameter of 1.0–1.5 mm were used. As a comparison, solid–liquid reaction ball milling without ultrasonic wave assistance and the effects of different milling balls were also investigated. The results showed that, this technique is simple, environmentally friendly and energy-saving for nanocrystal synthesis.

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