Preparation of Photo-thermal Cellulose Nanocrystal-based Hydrogel
- Resource Type
- Academic Journal
- Authors
- ZiHe Guo; Tao Ma; ShiYu Fu
- Source
- 造纸与生物质材料(英文) / PAPER AND BIOMATERIALS. 4(2):32-39
- Subject
- CNC
gold nanoparticle/CNC composite
CNC-based hydrogel
photo-thermal hydrogel
- Language
- Chinese
- ISSN
- 1006-2599
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.