Metal powder-pure water system for rational synthesis of metal oxide functional nanomaterials: a general, facile and green synthetic approach
Metal powder-pure water system for rational synthesis of metal oxide functional nanomaterials: a general, facile and green synthetic approach
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金属粉-纯水体系合理合成金属氧化物功能纳米材料：一种通用、简便、绿色的合成方法
DOI：
10.1039/c6ra00709k
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发表时间：
2016
期刊：
影响因子：
3.9
通讯作者：
Pan Fusheng
中科院分区：
文献类型：
--
作者：
Li Lingjie;Zhang Jie;Lei Jinglei;Xu Jing;Liu Peipei;Li Nianbing;Pan Fusheng
金属氧化物(MO)纳米材料在许多领域发挥着举足轻重的作用。合理合成MO纳米材料的一般、简便、绿色的方法是非常可取的。在这项工作中，发展了一种简单的方法，通过超声辅助预氧化和随后的水热氧化(UAPO-HO)直接在纯水中金属粉末，而不使用任何其他化学品，作为一种一般的合成路线，以制备MO纳米材料。利用这种UAPO-Ho方法首次成功地合成了三种具有代表性的MO纳米材料(Mn3O4纳米棒、氧化锌纳米粒和Fe3O4纳米立方体)。研究了作为超级电容器电极材料的Mn3O4、降解有机污染物的光催化剂氧化锌、处理抗生素的磁性催化剂Fe3O4等新合成的MO纳米材料的性能，这些材料在储能和环保方面表现出诱人的性能。该合成方法具有化学用量少、产物纯度高、简便、绿色、温和等显著优点，为合成MO纳米材料提供了一条独特的线索。
Metal oxide (MO) nanomaterials have played a pivotal role in many fields. The general, facile and green approach for rational synthesis of MO nanomaterials is highly desirable. In this work, a simple approach via an ultrasonic-assisted preoxidation and a subsequent hydrothermal oxidation (UAPO–HO) of metal powders directly in pure water without using any other chemicals has been developed as a general synthetic route to prepare MO nanomaterials. Three representative MO nanomaterials (Mn3O4 nanorods, ZnO nanopellets, and Fe3O4 nanocubes) have been successfully synthesized by this UAPO–HO approach for the first time. The properties of the newly synthesized MO nanomaterials, such like Mn3O4 as an electrode material for supercapacitors, ZnO as an photocatalyst for degrading organic pollutants, and Fe3O4 as a magnetic catalyst for disposing antibiotics, are investigated, which demonstrate attractive performance in energy storage and environmental protection. The synthetic approach developed here has the significant advantages of being chemical-utility least, product-purity high, facile, green and mild, which offers a unique clue for synthesis of MO nanomaterials.