| Preparation of Photo-thermal Cellulose Nanocrystal-based Hydrogel |
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| Author Name | Affiliation | | ZiHe Guo | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China | | Tao Ma | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China | | ShiYu Fu* | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China |
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| Fund Project:This work was funded by the National Natural Science Foundation of China (31570569). |
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| Abstract:Cellulose nanocrystal (CNC) prepared by hydrolysis of cotton linters with sulfuric acid was used to react with chloroauric acid to manufacture a gold nanoparticle/CNC composite. The composite was then graft-copolymerized with N-isopropylacrylamide to obtain a photo-thermal ultrafine gold nanoparticles/CNC-based hydrogel. The hydrogel was studied by performing scanning electron microscopy, and it was found that the prepared hydrogel had a network structure. The temperature of the hydrogel increased from 25℃ to 39℃ and its volume decreased by 30% when it was exposed to visible light (400~750 nm) for 1 h. The experiment results indicated that the prepared photo-thermal CNC-based hydrogel has thermal responsiveness and photo-thermal properties. |
| keywords:CNC gold nanoparticle/CNC composite CNC-based hydrogel photo-thermal hydrogel |
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