A novel three-dimensional graphene/bacterial cellulose nanocomposite prepared by in situ biosynthesis

被引：55
作者：
Luo, Honglin [1 ]
Xiong, Guangyao [2 ]
Yang, Zhiwei [1 ]
Raman, Sudha R. [3 ]
Si, Hongjuan [1 ]
Wan, Yizao [1 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
[2] East China Jiaotong Univ, Sch Mech & Elect Engn, Nanchang 330013, Jiangxi, Peoples R China
[3] Duke Univ, Dept Community & Family Med, Durham, NC 27706 USA
来源：
RSC ADVANCES | 2014年 / 4卷 / 28期
基金：
中国国家自然科学基金;
关键词：
REDUCED GRAPHENE OXIDE; COMPOSITE HYDROGELS; GRAPHITE; GELATIN; TOUGH;
D O I：
10.1039/c4ra00318g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Graphene has been widely used to reinforce various hydrogels while there is no report on the composite hydrogels of bacterial cellulose (BC) and graphene. In this work, a graphene/BC (GE/BC) nanocomposite hydrogel was prepared by in situ biosynthesis. The morphology and structure of the obtained GE/BC nanocomposite were characterized by SEM, TEM, XRD, and Raman. Results showed that the presence of graphene in the culture medium of BC changed the crystalline structure of BC while the in situ biosynthesis process had no influence on the structure of graphene. It was found that graphene nanoplates were uniformly dispersed in the three-dimensional (3D) BC matrix and tightly bound by BC nanofibers. This unique 3D structure will impart the GE/BC nanocomposite with excellent mechanical, electrical, and biological
引用
收藏
页码：14369 / 14372
页数：4
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