Preparation of Bacterial Cellulose Nanofiber with Silver Nanoparticles by In Situ Method
Bacterial cellulose nanofibers with silver nanoparticles were prepared using silver nitrate and sodium borohydride aqueous solution by in situ method. The prepared nanocomposites were characterized by scanning electron microscopy (SEM),X-ray diffraction (XRD),and thermogravimetric analysis (TGA) test. The morphology of these nanocomposites indicated that the silver nanoparticles have been formed and distributed uniformly on the surface of the BC nanofibers. It was also found that the incorporation of silver nanopartilces onto BC nanofibers affected the crystal structure of BC nanofibers. Meanwhile,the thermal degradation temperature has been increased from approximately 260℃ to 340℃ for nanocomposites. The average size of silver nanoparticles is around 15 nm,which is bigger than previous report. This may be due to the aggregation of small nanoparticles,especially at high AgNO3 concentration.
Bacterial cellulose nanofiber Silver nanoparticles Nanocomposite
Zhijiang Cai Guang Yang
School of Textiles,Tianjin Polytechnic University,Tianjin 300300,China Key Laboratory of Advanced Te School of Textiles,Tianjin Polytechnic University,Tianjin 300300,China
国际会议
杭州
英文
140-143
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）