林产化学与工业2012，Vol.32Issue(1)：29-34,6.
木质素磺酸钠-壳聚糖聚电解质对铜离子的吸附性能
Adsorption of Copper Ions by Sodium Lignosulfonate-chitosan Polyelectrolyte Complex
摘要
Abstract
According to the theory of static action, sodium lignosulfonate-chitosan (SLS-CS) polyelectrolyte complex was prepared from alkaline lignin and chitosan. The structure of sodium lignosulfonate-chitoaan (SLS-CS) polyelectrolyte was characterized by Fourier transform infrared ( FT-IR) and X-ray powder diflraction( XRD). The adsorption property for copperions by sodium lignosulfonate-chitosan polyelectrolyte was also evaluated. The results indicated that NH3+ was formed by the protonated amino groups of chitosan which formed sodium lignosulfonate-chitosan ( SLS-CS) polyelectrolyte complex by reacting with -SO, Na of sodium lignosulfonate through electrostatic adsorption. Compared with the sodium lignosulfonate and chitosan, the amorphous peak of chifosan tends to decrease, the arrangement of sodium lignosulfonate-chitosan ( SLS-CS) polymer appears more ordered, intermo-lecular force is enhanced, the adsorption equilibrium time for copper ions is about 5 h, and the saturated adsorption capacity is 12.5 mg/g. The adsorption isotherm curve fits well with Freundich equation.关键词
木质素/壳聚糖/木质素磺酸盐/木质素磺酸钠-壳聚糖聚电解质Key words
lignin/chitosan/lignosulfonate/sodium lignosulfonate-chitosan polyelectrolyte complex分类
化学化工引用本文复制引用
王春海,艾青,赵银凤,卑莹,方桂珍..木质素磺酸钠-壳聚糖聚电解质对铜离子的吸附性能[J].林产化学与工业,2012,32(1):29-34,6.基金项目
国家林业局行业公益项目(200904072) （200904072）
国家自然科学基金资助项目(30471363) （30471363）
