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Synthesis of organosiloxane-coated SiO2/CeO2 with multilayered hierarchical structure and its application in optical diffusers

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Abstract

In this study, a simple, convenient and green approach for the preparation of organosiloxane-coated SiO2/CeO2 (SiO2/CeO2/poly(VTMS)) with multilayered hierarchical structure is demonstrated by consecutive surface cerium deposition and organosiloxane grafting on the bare silica spheres. The results of the UV–Vis spectrum and photoluminescence analysis suggest that the fillers may be potentially applied in UV absorbers and bioimaging materials. Moreover, the optical diffusers based on the multilayered spheres can be prepared via a solvent-free UV curing process and exhibit enhanced properties like suitable light transmittance, good diffusion capacity and low-incident angle dependence, which are critical for the optical diffusers. In addition, when the concentration of the fillers was 15 wt%, the optical diffusers presented superior light-diffusing properties among all the as-prepared samples. Thus, the films based on the SiO2/CeO2/poly(VTMS) with multilayered hierarchical structure may open up new possibilities in applications as multifunctional light diffusion films in liquid crystal displays.

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Acknowledgements

This work is financially supported by the National Nature Science Foundation of China (Grant Nos. 51673040, 21676056 and 21376051), the Prospective Joint Research Project of Jiangsu Province (Grant No. BY2016076-01), a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) (Grant No. 1107047002), The Fundamental Research Funds for the Central Universities (Grant No. 2242015k30001), Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China (Grant No. BA2016105). The authors especially acknowledge Prof. Hu jingang Group’s help with optical diffusion properties test.

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  1. School of Chemistry and Chemical Engineering, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Southeast University, Nanjing, 211189, China

    Xi Zhong, Yuming Zhou, Man He, Yuan Tong, Lidan Fan & Zhilan Cai

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  1. Xi Zhong
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  2. Yuming Zhou
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Correspondence to Yuming Zhou.

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Zhong, X., Zhou, Y., He, M. et al. Synthesis of organosiloxane-coated SiO2/CeO2 with multilayered hierarchical structure and its application in optical diffusers. J Mater Sci 52, 12806–12817 (2017). https://doi.org/10.1007/s10853-017-1281-5

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