南京林业大学学报（自然科学版）2012，Vol.36Issue(3)：111-114,4.
多孔性再生纤维素磁性微球的制备及性质
Preparation and properties analysis of porous magnetic microspheres from regenerated cellulose
摘要
Abstract
The natural cellulose now has become one of the research hotspats in the water treatment research field for its excellent performance. Natural cellulose was directly dissolved in environmental-friendly alkali/carbamide/water solvent system. Reversed-phase suspension technique was used to regenerate cellulose microspheres, they were further magnetically functionalized through in-situ synthesis method. The results showed that there was a decrease in the diameters of the cellulose microspheres with an increase of the oil/water ratio. The prepared cellulose microspheres had large specific surface area ( >30 mVg) , good porosity ( >90 % ) , and high water content ( > 85 % ). Based on the results of FTIR, XRD and SEM, Fe3O4 nanoparticles were successfully formed and loaded in the cellulose microspheree. The cellulose composites preserved good orbicular shape, porosity and superparamagnetism. This type of cellulose microspheres material possessed potential application in the water treatment field.关键词
纤维素微球/多孔性/超顺磁性/原位复合法Key words
cellulose microspheres/porous structure/superparamagnetism/in-situ synlhesis分类
化学化工引用本文复制引用
谷军,吴伟兵,王飞,龚木荣,景宜,戴红旗..多孔性再生纤维素磁性微球的制备及性质[J].南京林业大学学报（自然科学版）,2012,36(3):111-114,4.基金项目
江苏省高校自然科学基础研究项目(10KJB53007) （10KJB53007）
华南理工大学制浆造纸工程国家重点实验室开放基金(201019) （201019）
中国博士后科学基金第49批面上项目(892) （892）
