摘要
利用高分子聚合物壳聚糖链上富含的氨基修饰石墨烯,制备了具有独特性质的石墨烯基纳米复合材料,并利用壳聚糖对金纳米粒子良好的保护作用,使金纳米粒子固载到石墨烯纳米复合材料的表面,合成了一种具有生物相容性的金纳米粒子/氧化石墨烯纳米复合材料.同时,利用UV-vis、FT-IR、Zeta电位仪、XRD粉末衍射仪、TEM等对所制备石墨烯基纳米复合材料进行了表征.结果表明,PEI/GO/GC,AuNPs/PEI/GO/GC修饰电极对H2O2具有更好的电化学催化性能.
The chitosan polymer chains with amino-modified graphene have been utilized to prepare unique graphene- based nanocomposites in the laboratory. The chitosan was empolyed to protect the gold nanoparticles significantly, which were immobilized to the surface of graphene nanocomposites, yielding a type of biocompatible gold nanoparticles/oxidation graphene nanocomposites. At the same time, the graphene nanocomposites were characterized by UV-vis, FT-IR, Zeta potential, XRD and TEM. The results showed that the modified electrodes of PEI/GO/GC and AuNPs/PEI/GO/GC have better electrochemical catalytic properties for H2O2.
出处
《河南大学学报（自然科学版）》
CAS
2015年第4期404-409,共6页
Journal of Henan University:Natural Science
基金
国家自然科学基金项目(21371084)
包头市科技计划(2014X1014-02
2014X1014-04)
校内青年科技基金(BSYKJ2014-25)项目资助
关键词
石墨烯
聚乙烯亚胺
金纳米复合物
修饰电极
催化性能
graphene
polyethyleneimine
gold nanoparticle composites
modified electrodes
catalytic property
