摘要
采用反相微乳液法,以水合肼为还原剂制备纳米银/羧甲基壳聚糖复合微粒,并用红外光谱、X射线衍射、透射电镜对制备的样品微粒进行表征,讨论了搅拌速度、AgNO_3用量以及乳液体系的组成对纳米银复合粒子形貌与尺寸的影响。结果表明,当搅拌速度为1400r/min,AgNO_3用量为0.52g,吐温-80/液体石蜡体积比为4:5时,可制得粒径在50nm左右的纳米银/羧甲基壳聚糖复合微粒,且粒子具有较好的面心立方晶体结构。
Nano-silver/carboxymethyl chitosan composite particles were prepared by inverse micro-emulsion method with hydrazine hydrate as reductant. FT-IR spectrum, X-ray diffraction and TEM were taken to characterize the structure of sample particles. The influences of stirring rate, addition amount of AgNO3 and the ingredients of inverse emulsions on the morphology and size of nano- silver composite particles were discussed. The experimental results indicated that, when the stirring rate was 1 400 r/min, the amount of AgNO3 was 0.52 g, and the ratio of Tween-80/liquid paraffin was 4 ： 5, the nano-silver/carboxymethyl chitosan composite particles with diameter around 50 nm could be obtained, and the particles had face-centered cubic crystal structure.
作者
向奇志
吴燕
符嫦娥
陈婉
XIANG Qi-zhi WU Yan FU Chang-e CHEN Wan(The College of Environment and Ecology, Jiangsu Open University, Nanjing, Jiangsu 210048, China College of Material Science ＆ Chemical Engineering, Tianjin University of Science ＆ Technology, Tianjin 300457, China)
出处
《日用化学品科学》
CAS
2017年第3期27-31,共5页
Detergent & Cosmetics
基金
江苏省自然科学基金项目(BK20161480)
江苏城市职业学院校级"十二五"规划重点课题(14SEW-Z-002)
关键词
反相微乳液法
吐温-80
纳米银
羧甲基壳聚糖
inverse micro-emulsion method
Tween-80
nano-silver
carboxymethyl chitosan
