Near-infrared emissive lanthanide hybridized nanofibrillated cellulose nanopaper as ultraviolet filter

Bailiang Xue; Zhao Zhang; Yongchang Sun; Junjie Wang; Huie Jiang; Min Du; Congcong Chi; Xinping Li

doi:10.1016/j.carbpol.2017.12.088

Near-infrared emissive lanthanide hybridized nanofibrillated cellulose nanopaper as ultraviolet filter

Carbohydr Polym. 2018 Apr 15:186:176-183. doi: 10.1016/j.carbpol.2017.12.088. Epub 2018 Jan 2.

Authors

Bailiang Xue¹, Zhao Zhang², Yongchang Sun³, Junjie Wang⁴, Huie Jiang⁴, Min Du⁴, Congcong Chi⁴, Xinping Li⁵

Affiliations

¹ Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: xuebailiang@sust.edu.cn.
² Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China; Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China.
³ Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an, China.
⁴ Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China.
⁵ Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China; Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China. Electronic address: lixp@sust.edu.cn.

PMID: 29455976
DOI: 10.1016/j.carbpol.2017.12.088

Abstract

The lanthanide complexes [Yb(fac)₃(H₂O)₂, Yb(tta)₃(H₂O)₂, Nd(tta)₃(H₂O)₂] functionalized nanofibrillated cellulose (Ln-NFC) nanopapers with near-infrared (NIR) luminescence and high transparency are rapidly fabricated after solvent exchange using a simple suction filtration film-making method. The effects of NFC and lanthanide complexes content on their photophysical properties of Ln-NFC nanopapers and their mechanism of UV filters are fully investigated. With increasing lanthanide complexes content in the Ln-NFC nanopaper, their transmittances are gradually decreased while their NIR luminescences are obviously increased. Yb-fac NFC nanopaper has high UVB block rate at 298 nm, whereas the high UVA block ratio of Ln-tta NFC nanopaper is observed at 345 nm. Ln-NFC nanopapers show a much higher photostability without decomposition under UV irradiation at 365 nm over 5 h. The emission spectra of the Ln-NFC nanopaper process the NIR luminescence of the corresponding lanthanide ions through the efficient triplet-triplet energy transfer process. Ln-NFC nanopapers can bring a brilliant future for UV filters, labeling fields and marking soft materials application.

Keywords: Lanthanide; NIR luminescence; Nanofibrillated cellulose; Transparent nanopaper; UV filter.