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多孔性再生纤维素磁性微球的制备及性质(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年03期
Page:
111-114
Column:
研究论文
publishdate:
2012-05-30

Article Info:/Info

Title:
Preparation and properties analysis of porous magnetic microspheres from regenerated cellulose
Author(s):
GU Jun1WU Weibing12*WANG Fei1GONG Murong1JING Yi1DAI Hongqi1
1.Jiangsu Provincial Key Lab of Pulp & Paper Science & Technology, Nanjing Forestry University, Nanjing 210037, China; 2.State Key Lab of Pulp & Paper Engineering,South China University of Technology,Guangzhou 510640,China
Keywords:
cellulose microspheres porous structure superparamagnetism in-situ synthesis
Classification number :
TQ425.2
DOI:
10.3969/j.jssn.1000-2006.2012.03.023
Document Code:
A
Abstract:
The natural cellulose now has become one of the research hotspots 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 m2/g), 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 microspheres. The cellulose composites preserved good orbicular shape, porosity and superparamagnetism.This type of cellulose microspheres material possessed potential application in the water treatment field.

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Last Update: 2012-05-30