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| Preparation of Lignin/TiO2 Nano Composites and Preparation of Nanocellulose-based UV-shielding Film |
| Received:January 17, 2021 |
| DOI：10.11980/j.issn.0254-508X.2021.05.003 |
| Key Words:lignin titanium dioxide nano composites UV-shielding |
| Fund Project:国家重点研发计划（2016YFE0125800）；浙江省自然科学基金（LY20C160006）。 |
| Author Name | Affiliation | Postcode | | ZHANG Jinmeng | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | ZHANG Xiumei | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | GUO Daliang | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018
School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Hangzhou, Zhejiang Province, 310023 | 310023 | | XUE Guoxin | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 |
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| Abstract:Alkali lignin was used as a biological template inducer， and lignin/TiO2 UV-shielding nanoparticles were successfully synthesized by hydrothermal method. Comprehensive characterization results showed that lignin/TiO2 composite nanoparticles had anatase crystal form， good nanoparticle size and thermal stability， it also confirmed that the esterification like reaction took place between the oxygen-containing functional groups of lignin and hydroxyl groups on the surface of titanium dioxide. Thus， lignin and titanium dioxide formed a composite material with an incarcerated structure. Besides， the UV-shielding property of the film prepared by lignin/TiO2 nanoparticles and nanocellulose hydrogel was studied. The results showed that the nanocellulose hydrogel composite film with 10% lignin/TiO2 nanoparticles could absorb about 90% UV light at the all band （200~400 nm）， indicating that lignin/TiO2 nano composites had a good UV-shielding capability. |
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