Journal
MATERIALS
Volume 10, Issue 5, Pages -Publisher
MDPI AG
DOI: 10.3390/ma10050526
Keywords
succinoylation; ionic liquid; cellulose; modification; adsorption
Categories
Funding
- Forestry Industry Research Special Funds for Public Welfare Projects [201504602]
- Jiangsu Specially-Appointed Professor program
- Fund from Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals [JSBGFC 14003]
- project of the Priority Academic Program Development of Jiangsu Higher Education Institutions (PADA)
Ask authors/readers for more resources
Homogeneous modification of cellulose with succinic anhydride was performed using tetrabutylammonium acetate (TBAA)/dimethyl sulfoxide (DMSO) mixed solvent. The molar ratio of succinic anhydride (SA) to free hydroxyl groups in the anhydroglucose units (AGU), TBAA dosage, reaction temperature, and reaction time were investigated. The highest degree of substitution (DS) value of 1.191 was obtained in a 10 wt% TBAA/DMSO mixed solvent at 60 degrees C for 60 min, and the molar ratio of SA/AGU was 6/1. The molar ratio of SA/AGU and the TBAA dosage showed a significant influence on the reaction. The succinoylated cellulose was characterized by ATR-FTIR, TGA, XRD, solid state CP/MAS C-13 NMR spectroscopy (CP/MAS C-13 NMR), and SEM. Moreover, the modified cellulose was applied for the adsorption of Cu2+ and Cd2+, and both the DS values of modified cellulose and pH of the heavy metal ion solutions affected the adsorption capacity of succinylated cellulose. The highest capacity for Cu2+ and Cd2+ adsorption was 42.05 mg/g and 49.0 mg/g, respectively.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available