摘要
以壳聚糖与Fe_(3)O_(4)纳米颗粒为原料,采用反向悬浮交联法制备壳聚糖磁性纳米材料,以其对亚硝酸盐吸附率为指标,优化制备工艺。通过响应面试验得到最佳制备条件为合成温度65℃,pH=9.40,Fe_(3)O_(4)添加量0.29g,在此条件下得到的壳聚糖磁性纳米材料对亚硝酸盐的吸附率为53.07%。红外光谱分析表明壳聚糖与Fe_(3)O_(4)纳米颗粒交联成功。通过磁性对比发现壳聚糖磁性纳米材料具备较强磁性。电镜下观察壳聚糖磁性纳米材料表面多孔隙,与壳聚糖、Fe_(3)O_(4)的表面形态存在明显不同。
Chitosan and Fe_(3)O_(4) nanoparticles were used as raw materials,and chitosan magnetic nanomaterials were prepared by the reverse suspension crosslinking method.The nitrite adsorption rate was used to optimize the preparation process.The optimal preparation conditions obtained by response surface test were the synthesis temperature of 65℃,pH value of 9.40,and Fe_(3)O_(4) addition amount of 0.29 g.Under these conditions,the nanomaterial had an adsorption rate of 53.07% for nitrite.Infrared spectroscopy analysis showed that chitosan and Fe_(3)O_(4) nanoparticles were successfully crosslinked.Through magnetic comparison,it was found that the nanomaterials had strong magnetic properties.The surface pores of the nanomaterials were observed under electron microscope,and the surface morphology of chitosan and Fe_(3)O_(4) was obviously different.
作者
傅晶依
刘通
汤琦龙
窦信
赵珺
Fu Jingyi;Liu Tong;Tang Qilong;Dou Xin;Zhao Jun(School of Food Science and Engineering,Changchun University,Changchun 130022)
出处
《化工新型材料》
CAS
CSCD
北大核心
2021年第9期259-263,266,共6页
New Chemical Materials
基金
吉林省发改委创新能力建设项目(2020C027-5)
长春大学秋实基金项目(2KQ201911)。
关键词
壳聚糖
磁性材料
反向悬浮交联法
chitosan
magnetic material
reverse suspension crosslinking
