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Polymers 2018, 10(10), 1112; https://doi.org/10.3390/polym10101112

Luminescent and UV-Shielding ZnO Quantum Dots/Carboxymethylcellulose Sodium Nanocomposite Polymer Films

College of Science, Northeast Forestry University, Harbin 150040, China
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Author to whom correspondence should be addressed.
Received: 7 September 2018 / Revised: 28 September 2018 / Accepted: 3 October 2018 / Published: 8 October 2018
(This article belongs to the Special Issue Nanotechnology of Polymers and Biomaterials)
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Abstract

Luminescent and UV-shielding bio-polymers have seldom been reported. Zinc oxide quantum dots (ZnOQD) (~3.2 nm) was synthesized by a short-term sol-gel method. ZnOQD possessed a crystal lattice spacing of 0.28 nm and a hexagonal wurtzite structure. Luminescent and UV-shielding ZnOQD/carboxymethylcellulose sodium (CMC) nanocomposite polymer films were successfully fabricated by incorporating ZnOQD into a CMC matrix through a solution casting method. Thermal analysis demonstrated that the ZnOQD reduce the thermal decomposition rate of CMC, and a large number of ZnOQD can promote the catalytic degradation of ZnOQD/CMC nanocomposites. Furthermore, ZnOQD/CMC hybrid polymer films exhibited photoluminescence with maximum emission wavelength at 525 nm. More significantly, ZnOQD/CMC showed prominent UV-absorbing capability. Such ZnOQD/CMC nanocomposite polymer films are promising in UV-shielding and optical applications. View Full-Text
Keywords: UV-shielding quantum dots; biomaterials; luminescent; polymer; nanocomposite UV-shielding quantum dots; biomaterials; luminescent; polymer; nanocomposite
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Li, T.; Li, B.; Ji, Y.; Wang, L. Luminescent and UV-Shielding ZnO Quantum Dots/Carboxymethylcellulose Sodium Nanocomposite Polymer Films. Polymers 2018, 10, 1112.

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