Biomineralization Strategy to 伪-Mn2O3 Hierarchical Nanostructures

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• 作者：Huaqiang Cao ; Xiaoming Wu ; Guohua Wang ; Jiefu Yin ; Gui Yin ; Fan Zhang ; Junkun Liu
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：October 4, 2012
• 年：2012
• 卷：116
• 期：39
• 页码：21109-21115
• 全文大小：425K
• 年卷期：v.116,no.39(October 4, 2012)
• ISSN：1932-7455

文摘

Here, we report on the synthesis of 伪-Mn₂O₃ complex nanostructures through heat-treatment of the precursor MnCO₃ (in similar structure and size) synthesized by a biomineralization route. The phase, microstructure, and morphology of the obtained sample were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectrum, Raman spectrum, and scanning electron microscopy (SEM). The self-assembly mechanism of the precursor of MnCO₃ is discussed. The 伪-Mn₂O₃ show two weak antiferromagnetic transition N茅el temperatures at 78.3 and 15.8 K and a Curie鈥揥eiss temperature at 48.5 K. Also, the 伪-Mn₂O₃ hierarchical nanostructures present superhydrophobicity with a contact angle over 150掳.