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Photoluminescence,structural and antibacterial properties of co-doped β-Ca3（PO4）2-type phosphates Ca8CuRE（PO4）7（RE=Eu-Er）

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Journal of Rare Earths 2024年第9期42卷 1658-1668页

作者： ivan V.Nikiforov Ekaterina V.iliin bogdan i.lazoryak Sergey M.Aksenov Pavel V.Slukin Dina V.Deyneko Department of Chemistry Lomonosov Moscow State University Laboratory of Arctic Mineralogy and Material Sciences Kola Science CentreRussian Academy of Sciences Geological institute Kola Science CentreRussian Academy of Sciences State Scientific Center of Applied Microbiology and Biotechnology of Rospotrebnadzor 24

Novel Ca8CuRE（PO4）7where RE3+=Eu3+,Tb3+,Dy3+,Ho3+and Er3+were synthesized by a solid-state method in *** structures of the samples were characterized by powder X-ray diffraction using Rietveld refinement to determine the occupation of crystal *** samples are found to have a centrosymmetric structure with space group R3c,as shown by dielectric *** synthesized Ca8CuRE（PO4）7samples have multifunctional *** Cu2+ions provide antibacterial properties,while the rare earth elements ions exhibit luminescence properties,and the β-Ca3（PO4）2-type host is *** photoluminescence properties of RE3+ions were studied and compared with other simmilar Ca8MRE（PO4）7phosphates,where M is a divalent *** photoluminescence intensity quenching in terms of energy transfer from RE3+to Cu2+is *** bioactive properties were studied in relation to antibacterial activity against *** and *** syntesized Ca8CuRE（PO4）7samples demonstrate very high and stable inhibition of bacteria *** correlation between crystal structure and properties is *** combining multiple approaches to the directio nal design of such materials,several important properties within a single chemical compound to achieve biovisualization and bioactive properties simultaneously can be combined.

关键词： Whitlockite-type structure Bioactive phosphates TCP Photoluminescence Rare earths

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Production of Fibres from Lunar Soil:Feasibility,Applicability and Future Perspectives

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Advanced Fiber Materials 2022年第5期4卷 923-937页

作者： Ze‑Shi Guo Dan Xing Xiong‑Yu Xi Xiu Yue Cun‑Guang Liang Bin Hao Qingbin Zheng Sergey i.Gutnikov bogdan i.lazoryak Peng‑Cheng Ma Laboratory of Environmental Science and Technology The Xinjiang Technical Institute of Physics and ChemistryKey Laboratory of Functional Materials and Devices for Special EnvironmentsChinese Academy of SciencesUrumqi 830011China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China School of Science and Engineering The Chinese University of Hong KongShenzhen 518172China Chemistry Department Lomonosov Moscow State University119991 MoscowRussia

The construction of a lunar base is considered to be an important step towards deep-space exploration by humanity,and will rely on the utilisation of in situ lunar *** this paper,we discuss the current knowledge on the feasibility of converting lunar soil to high-performance fibres that can be used for the construction of a lunar *** fibre would be combined with further portions of lunar soil to generate fibre-reinforced composites,which is utilized as multi-functional materials for lunar base *** discuss and analyse the latest findings regarding the composition of lunar soil simulants and their fibrisation properties,and techniques for fibre spinning and system ***,we suggest how the achievements made so far could be applied to the construction of a lunar base.

关键词： Lunar soil Lunar fibre in-situ resource utilization Construction of lunar base

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