Carbon-based films were synthesized by self-assembly of chitosan-encapsulated carbon microsphere (CMS@CS) composite.First,carbon microspheres (CMSs) prepared by chemical vapor deposition were modified by HNO3 and H2O2.Second,oxidized CMSs were modified by chitosan (CS).Finally,CMS@CS was self-assembled by vertical deposition,in which suspension concentration and deposition temperature on the quality of self-assembling film were investigated.Field emission scanning electron microscopy,atomic force microscopy,X-ray diffraction,thermogravimetry,and Fourier transformation infrared spectrometry vere employed to characterize the morphology and structure of the samples.The results show that CMSs modified by CS had uniform particle size and good dispersion,CMS@CS was self-assembled into a dense film,the film thickened with increasing suspension concentration at fixed temperature,and more ordered film was obtained at l wt% of suspension concentration and 50 ℃.The ultraviolet-visible absorption spectra show that the absorbance of CMS@CS film grew steadily with increasing suspension concentration and that the CMSs with oxygen-containing groups have a good assembling performance to form composite films with CS.
参考文献
[1] | J.X.Liao;W.M.Liu;T.Xu;Q.J.Xue .Characteristcs of carbon films prepared by plasma-based ion implantation[J].Carbon: An International Journal Sponsored by the American Carbon Society,2004(2):387-393. |
[2] | J. S. Chen;Z. Sun;S. P. Lau;B. K. Tay .Structural and tribological properties of hard carbon film synthesized by heat-treatment of a polymer on graphite substrate[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2001(1/2):161-166. |
[3] | T. Bao;P.W. Morrison Jr;W.A. Woyczynski .Parametric optimization of microhardness of diamond-like carbon films prepared by plasma enhanced chemical vapor deposition[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2005(1/2):27-41. |
[4] | 张俊苓,杨芳,郑文杰,白燕,欧阳健明.自组装单分子膜及其表征方法[J].化学进展,2005(02):203-208. |
[5] | Yuanzhu Mi;Yingliang Liu;Dingsheng Yuan;Jingxian Zhang .Preparation of Carbon Micro-beads via an Ethanol-thermal Route[J].Chemistry Letters,2005(6):846-847. |
[6] | Xuguang Liu;Yongzhen Yang;Xian Lin .Deoiled asphalt as carbon source for preparation of various carbon materials by chemical vapor deposition[J].Fuel Processing Technology,2006(10):919-925. |
[7] | Yongzhen Yang;XuguangLiu;ChunYiZhang;MingcongGuo;BingsheXu .Controllablesynthesisandmodificationofcarbonmicro-spheresfrom deoiled asphalt[J].The journal of physics and chemistry of solids,2010(3):235-241. |
[8] | Wang J .Carbon-nanotube based electrochemical biosensors: A review[J].Electroanalysis,2005(1):7-14. |
[9] | Brust M.;Kiely CJ. .Some recent advances in nanostructure preparation from gold and silver particles: a short topical review[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2002(2/3):175-186. |
[10] | Defang Zeng;Juanjuan Wu;John F.Kennedy .Application of a chitosan flocculant to water treatment[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2008(1):135-139. |
[11] | 李晓波,姜小莹.碳纳米管和壳聚糖的层层静电自组装多层膜[J].新型炭材料,2010(03):237-240. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%