Details

Autor(en) / Beteiligte

• Evdokimova, O. L.
• Kusova, T. V.
• Ivanova, O. S.
• Shcherbakov, A. B.
• Yorov, Kh. E.
• Baranchikov, A. E.
• Agafonov, A. V.
• Ivanov, V. K.

Titel

Highly reversible photochromism in composite WO3/nanocellulose films

Ist Teil von

• Cellulose (London), 2019-11, Vol.26 (17), p.9095-9105

Ort / Verlag

Dordrecht: Springer Netherlands

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Reversible photochromic hybrid organic–inorganic films containing nanocrystalline cellulose as a matrix and tungsten oxide as a photochromic component (CNC/WO 3 ) were obtained via a simple and quick solvent casting method. The films were studied by scanning electron microscopy, together with element mapping, FT-IR spectroscopy and X-ray diffraction, confirming successful incorporation of WO 3 nanoparticles into a nanocellulose matrix. Thermal analysis data indicated that the modification of a nanocellulose matrix with WO 3 increases its thermal stability. The CNC/WO 3 films showed a quick coloration-bleaching transition with good reversibility within 20 min, without notable degradation of photochromic properties after 10 cycles. The synthetic method proposed allows for scalable preparation of highly efficient low-cost WO 3 -based photochromic materials. Graphic abstract