Abstract
Herein, we developed a facile one-pot hydrothermal route to synthesize uniform functional Li2Si2O5 hydrate rod-like crystals. The growth of such unique anisotropic morphology underwent an in situ crystallization involving ordered attachment and Ostwald ripening of Li2SiO3 nanoparticles, and reactive transformation of Li2SiO3-to-Li2Si2O5 hydrate processes. The obtained Li2Si2O5 hydrate rods possessed a uniform size with a length of about 5 µm and a diameter of about 100–200 nm, indicating aspect ratio higher than 20 that reflected the anisotropic growth. The Li2Si2O5 hydrate rods exhibited excellent adsorption performance of methylene blue and the methylene blue-bearing Li2Si2O5 hydrate featured interesting photoluminescence performance of red emission at 675 nm compared with the reported value. The result endowed the Li2Si2O5 hydrate rods with a potential application as an optical probe for organic dye’s recognition.
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Acknowledgements
We thank the National Key R&D Program of China (Grant No. 2017YFB0310300), the National Natural Science Foundation of China (Grant No. 51672209) for the support of this work. We also thank Pro. Wei Wang and Pro. Shengwu Guo for operating the instruments of FE-SEM and HRTEM.
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Zhang, H., Wang, J. & Yang, J. Anisotropic growth and photoluminescence of Li2Si2O5 hydrate rods. J Mater Sci: Mater Electron 30, 17405–17411 (2019). https://doi.org/10.1007/s10854-019-02090-6
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DOI: https://doi.org/10.1007/s10854-019-02090-6