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Composite up-conversion luminescent films containing a nanocellulose and SrF2:Ho particles

Cellulose (London), 2019-03, Vol.26 (4), p.2403-2423 [Tạp chí có phản biện]

Springer Nature B.V. 2019 ;Copyright Springer Nature B.V. 2019 ;ISSN: 0969-0239 ;EISSN: 1572-882X ;DOI: 10.1007/s10570-018-2194-4

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Nhan đề:
Composite up-conversion luminescent films containing a nanocellulose and SrF2:Ho particles
Tác giả: Fedorov, P. P. ; Luginina, A. A. ; Kuznetsov, S. V. ; Voronov, V. V. ; Lyapin, A. A. ; Ermakov, A. S. ; Pominova, D. V. ; Yapryntsev, A. D. ; Ivanov, V. K. ; Pynenkov, A. A. ; Nishchev, K. N.
Chủ đề: Bioorganic Chemistry ; Bleaching ; Cellulose ; Ceramics ; Chemical industry ; Chemistry ; Chemistry and Materials Science ; Composites ; Crystalline cellulose ; Dispersions ; Filter paper ; Glass ; Holmium ; Morphology ; Nanocomposites ; Nanocrystals ; Nanoparticles ; Natural Materials ; Near infrared radiation ; Optical properties ; Organic Chemistry ; Original Research ; Particle size distribution ; Particulate composites ; Photonics ; Physical Chemistry ; Polymer Sciences ; Raw materials ; Strontium fluorides ; Sulfuric acid ; Sustainable Development ; Synthesis ; Thin films ; Upconversion ; Wood pulp
Là 1 phần của: Cellulose (London), 2019-03, Vol.26 (4), p.2403-2423
Mô tả: The synthesis of up-conversion luminescent composite films based on a nanocellulose matrix containing Sr 1−x Ho x F 2+x particles was proposed. The combination of sulfuric acid hydrolysis and ultrasonication allowed us to synthesize a series of stable nanocellulose dispersions from various raw materials (powdered sulphate bleached wood pulp, Blue Ribbon filter paper, and microcrystalline cellulose Avicel). The size distribution of cellulose nanoparticles in the aqueous dispersions was determined. Cellulose nanocrystals (CNC) and/or cellulose nanofibrils (CNF) dispersions were used to fabricate thin films by solution casting followed by solvent evaporation under ambient conditions. The size and shape of cellulose nanoparticles, surface morphology, crystallinity index of nanocellulose, polymerization degree, and optical properties were studied. By mixing aqueous dispersions of CNC with up-conversion Sr 1−x Ho x F 2+x particles, homogeneous suspensions were obtained. Finally, a solution casting technique was used to prepare CNC/Sr 1−x Ho x F 2+x and CNC/CNF/Sr 1−x Ho x F 2+x nanocomposite films. CNC/CNF dispersions were utilized for the production of flexible, durable, transparent composite films. The synthesized nanocomposites demonstrated intense red luminescence upon Ho 3+ excitation by 1912 nm laser radiation. The obtained up-conversion luminescent composite films can be considered as a promising material for photonics, in particular for near-IR laser radiation visualization, luminescent labeling and luminescent sensorics. Graphical abstract
Nơi xuất bản: Dordrecht: Springer Netherlands
Ngôn ngữ: English
Số nhận dạng: ISSN: 0969-0239
EISSN: 1572-882X
DOI: 10.1007/s10570-018-2194-4
Nguồn: AUTh Library subscriptions: ProQuest Central

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Composite up-conversion luminescent films containing a nanocellulose and SrF2:Ho particles

Springer Nature B.V. 2019 ;Copyright Springer Nature B.V. 2019 ;ISSN: 0969-0239 ;EISSN: 1572-882X ;DOI: 10.1007/s10570-018-2194-4

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