| 香草醛接枝壳聚糖的制备及其吸附性能 |
| |
| 引用本文： | 罗洁,陈建山,王贵武,邵立静.香草醛接枝壳聚糖的制备及其吸附性能[J].应用化工,2006,35(12):927-930. |
| |
| 作者姓名： | 罗洁 陈建山 王贵武 邵立静 |
| |
| 作者单位： | 中南林业科技大学,材料科学与工程学院,湖南,长沙,410004 |
| |
| 基金项目： | 中南林业科技大学校科研和校改项目 |
| |
| 摘 要： | 以壳聚糖和香草醛为原料,乙醇为溶剂,采用超声波辐射技术制备了香草醛接枝壳聚糖,用红外光谱对产物的结构进行了表征,同时研究了接枝壳聚糖的吸附性能。结果表明:采用超声波辐射法,大大提高了壳聚糖的接枝反应速度,反应2 h时接枝率达到32.85%。香草醛接枝壳聚糖对Cr6+、Cu2+的吸附容量和吸附速度大于壳聚糖。在25℃下,它对Cu2+、Cr6+的吸附容量分别达到145.68 mg/g和56.75 mg/g,并且对Cu2+、Cr6+的吸附在2 h内即可达到饱和。
|
| 关 键 词： | 壳聚糖 香草醛 接枝反应 超声波辐射 吸附 |
| 文章编号： | 1671-3206(2006)12-0927-04 |
| 收稿时间： | 2006-08-27 |
| 修稿时间： | 2006年8月27日 |
Preparation of chitosan grafted by vanillin and its adsorption property |
| |
| LUO Jie,CHEN Jian-shan,WANG Gui-wu,SHAO Li-jing.Preparation of chitosan grafted by vanillin and its adsorption property[J].Applied chemical industry,2006,35(12):927-930. |
| |
| Authors: | LUO Jie CHEN Jian-shan WANG Gui-wu SHAO Li-jing |
| |
| Affiliation: | College of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004, China |
| |
| Abstract: | Chitosan was grafted with vanillin in the ethanol under ultrasonic radiation.The structure of product was characterized by means of IR,and its adsorption property was investigated.The results showed that the reaction rate of chitosan modification was greatly enhanced under ultrasonic radiation,and grafting rate of product could reach 32.85% for 2 h.The grafted chitosan had a higher adsorption capacity and adsorption speed for Cr~(6+) and Cu~(2+) than unmodified chitosan,and its adsorption capacities for Cu~(2+) and Cr~(6+) were 145.68 mg/g and 56.75 mg/g respectively at 25℃,and its adsorption for them could be saturated in 2 h. |
| |
| Keywords: | chitosan vanillin graft reaction ultrasonic radiation adsorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
