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Green synthesis of biomimetic CePO4:Tb nanostructures using the simplest morphology control

机译：使用最简单的形态学控制绿色仿生CePO4：Tb纳米结构的合成

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摘要

A simple, environmentally and economically benign, scalable synthesis was developed for the production of micrometer long hexagonal cerium phosphate nanowires, complex urchin-like nanostructures and their terbium-doped counterparts. It was proven that neither sophisticated equipment nor structure directing agents or pH adjustment or tedious procedures are necessary, because the precise regulation of precursor addition rate is sufficient to control the morphology of the product nanostructures. Nanowires and nanourchins can be obtained by the instantaneous vs. drop-wise addition of phosphoric acid to an aqueous cerium nitrate solution, respectively. Terbium doping is readily achieved by dissolving a calculated amount of terbium nitrate in the precursor solution. Spherulitic lanthanide phosphate nanostructure formation mechanisms offered in the literature were critically reviewed and assessed against our experimental findings obtained by studying the sonochemical disintegration of nanourchins. Terbium doping introduced green luminescence and slowed down the temperature induced hexagonal to monoclinic phase transition of cerium phosphate.
机译：开发了一种简单，环境和经济上无害的，可扩展的合成方法，用于生产微米级长六角形磷酸铈纳米线，复杂的类似顽童的纳米结构及其掺counterpart的纳米线。事实证明，不需要精密的设备，结构导向剂，pH调节或繁琐的程序，因为精确控制前体添加速度足以控制产品纳米结构的形态。可以通过将磷酸瞬时地或逐滴地添加到硝酸铈水溶液中来获得纳米线和纳米顽皮。通过将计算量的硝酸sol溶解在前体溶液中很容易实现do掺杂。严格审查和评估了文献中提供的球状磷酸镧系元素纳米结构的形成机理，并根据我们通过研究纳米胆的声化学分解获得的实验结果进行了评估。掺杂导致绿色发光，并减缓了温度引起的磷酸铈的六方相到单斜相转变。

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