多肽聚合物对氧化石墨烯材料稳定性的研究

doi:10.16180/j.cnki.issn1007-7820.2020.07.013

Abstract

Abstract:

In order to further improve the stability of graphene oxide in water, polypeptide polymer was used to modify the surface of graphene oxide. It was shown from Fourier transform infrared spectroscopy and thermogravimetric analysis that they can be combined by non-covalent bonds. Then, the concentration of graphene oxide dispersions was determined by UV-vis absorption spectroscopy to characterize the stability of graphene oxide dispersions, and to explore the optimal dosage of polypeptide polymers when modifying graphene oxide. On this basis, the influence of polypeptide polymers on the long-term stability of graphene oxide in aqueous solvents was explored. It was shown from the experimental results that the agglomeration of graphene oxide sheets can be effectively avoided when the mass ratio of polypeptide polymer to graphene oxide is 3:100 under the condition of 1 mg/mL graphene oxide concentration. Graphene oxide modified by polypeptide polymer exhibits good stability in water solvent, and there is no obvious precipitation after eight weeks.

Key words: polypeptide polymer, graphene oxide, composite, surface modification, agglomeration, stability

CLC Number:

TN04

ZHAO Shichao,ZHU Hongyu,LIU Yu,HAO Jianyuan. Research the Stability of Polypeptide Polymers to Graphene Oxide Materials[J].Electronic Science and Technology, 2020, 33(7): 63-66.

Figures/Tables 7

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References 16

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Research the Stability of Polypeptide Polymers to Graphene Oxide Materials

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