Facile Synthesis of CePO4 Nanowires Attached to CeO2 Octahedral Micrometer Crystals and Their Enhanced Photoluminescence Properties
Facile Synthesis of CePO4 Nanowires Attached to CeO2 Octahedral Micrometer Crystals and Their Enhanced Photoluminescence Properties
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DOI：
10.1021/jp804567t
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发表时间：
2008-10
影响因子：
3.7
通讯作者：
Guicun Li;Kung-po Chao;Hongrui Peng;Kezheng Chen;Zhikun Zhang
中科院分区：
文献类型：
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作者：
Guicun Li;Kung-po Chao;Hongrui Peng;Kezheng Chen;Zhikun Zhang
使用较高摩尔比的Ce 3+和PO 43-，通过简单的一步水热法大规模合成了附着在CeO 2八面体微米晶体上的CePO 4纳米线。研究了反应时间、反应物配比、反应物种类等合成参数对产物形貌和晶体结构的影响。CeO 2八面体微米晶上CePO 4纳米线的形成过程是随时间变化的：先形成CePO 4纳米线，然后CeO 2生长为八面体微米晶。结果表明，由于CePO 4纳米线和CeO 2八面体微米晶体的协同效应，CePO 4纳米线与CeO 2八面体微米晶体的光致发光性能比纯CePO 4纳米线有明显的增强.
CePO4 nanowires attached to CeO2 octahedral micrometer crystals have been synthesized on a large scale using a higher molar ratio of Ce3+ and PO43− by a facile one-step hydrothermal method. The influences of synthetic parameters, such as reaction time, ratios, and types of reagents, on the morphologies and crystal structures of the resulting products have been investigated. The formation process of CePO4 nanowires attached to CeO2 octahedral micrometer crystals is time dependent: CePO4 nanowires are formed first, and then CeO2 grows into octahedral micrometer crystal. It is found that the photoluminescence properties of CePO4 nanowires attached to CeO2 octahedral micrometer crystals are enhanced strongly in comparison with pure CePO4 nanowires due to the synergic effects of CePO4 nanowires and CeO2 octahedral micrometer crystals.