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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Zn-Assisted Synthesis and Photoluminescence Properties of MgO Nanotubes
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Zn-Assisted Synthesis and Photoluminescence Properties of MgO Nanotubes

机译:Zn辅助合成的MgO纳米管及其光致发光性能

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摘要

A newly developed one-step Zn-assisted route has been used to produce MgO nanotubes (MNTs) by simple thermal evaporation of the mixed Zn and Mg powders without catalysts. The MNTs have average outer diameters of 80 nm and wall thicknesses of about 15 nm. The growth mechanism of MNTs is discussed in detail. The Zn/ZnO nanocables formed at the initial growth stage are crucial, act as interim templates for the formation of MNTs, and disappear automatically after formation of MNTs. Room-temperature photoluminescence measurement reveals structural-defect-related visible emissions of the synthesized MNTs. This kind of MNT with a high surface area may have promising applications as the sorbent for chemisorption and destructive adsorption of various pollutants and as a protective template by filling the MNTs with low-melting-point metals or semiconductor nanoparticles, due to their excellent refractory and thermal properties.
机译:一种新开发的单步锌辅助路线已用于通过简单地热蒸发混合的锌和镁粉而无需催化剂来生产MgO纳米管(MNT)。 MNT具有80nm的平均外径和约15nm的壁厚。详细讨论了MNT的生长机理。在初始生长阶段形成的Zn / ZnO纳米电缆至关重要,它充当MNT形成的临时模板,并在MNT形成后自动消失。室温光致发光测量揭示了合成MNT的结构缺陷相关可见光发射。这种具有高表面积的MNT可​​以用作各种污染物的化学吸附和破坏性吸附的吸附剂,以及通过向MNT中填充低熔点金属或半导体纳米颗粒来提供保护性模板,这是由于它们的优异耐火材料和热性能。

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