| With the increasing scarcity of petroleum resources on earth,the development of renewable natural resources to replace traditional petrochemical resources is a hot research topic.Cellulose,as one of the most widespread natural polymer materials on earth,has the advantages of wide source,low price,green,and biocompatibility,and can be widely used in the production of functional materials.Cellulose gel is a new type of material with a 3D network,which can be widely used in the biomedical field,adsorbent materials,and flexible devices.The cellulose gel prepared by cellulose and functional nanoparticles has the characteristics of both functional and cellulose gel itself,which can meet the demand of preparation while having the advantages of a green environment.In this article,cellulose was dissolved using corn cob cellulose in an ionic liquid solubilization system using 1-allyl-3-methylimidazolium chloride salt[Amim]Cl)-type ionic liquid and the preparation of gel materials of functionalized cellulose was carried out.In this paper,the following studies were carried out.（1）Solubilization of cellulose by co-solution in ionic liquid [Amim]Cl with dimethyl sulfoxide（DMSO）to explore the maximum solubility of cellulose and explore the experimental conditions for the preparation of cellulose gels,complete solubilization of cellulose from corn cob was achieved at 1 h,and the preparation of cellulose gels was simple and efficient.（2）The cellulose-based composite aerogel was prepared by the freeze-drying method by introducing graphene oxide rGO,into the cellulose gel,and the effect of adsorption of methylene blue ions in an aqueous solution was investigated.The results showed that the CL/rGO composite aerogel exhibited good performance for MB dye removal.The maximum adsorption rate was 99.7% at p H 7.The CL/rGO composite aerogel maintained a high adsorption performance after 5 times use.（3）The study of cellulose-based conductive gel materials was carried out by successfully introducing the salt solution into cellulose gel materials through substitution reaction,and the cellulose-based gel materials with conductive function were successfully prepared and explored for application in electrochromic reaction.The conductivity of the cellulose-based hydrogel after immersion in 1 mol Zn Cl2 was1.92 S/m.It also showed good stability as an electrolyte layer in electrochromic devices,and the prepared cellulose-based conductive hydrogel provides a new option for the electrolyte layer in electrochromic devices.In this thesis,the maximum solubility of corn cob cellulose was investigated by using a mixture of ionic liquid and DMSO solution as a solvent to dissolve cellulose.According to the above,a series of functional composite cellulose-based gel materials were prepared and the adsorption and conductivity of cellulose-based gel materials were investigated.The experiments showed that they performed well under the respective application conditions and can be used as a green cellulose gel material with potential applications in the future. |
