卟啉和氧化石墨烯之间相互作用的研究

摘要：本论文以聚苯乙烯微球为核，利用聚苯乙烯微球和氧化石墨烯之间的疏水相互作用、-相互作用以及带有正电荷的碘化三甲氨基苯基卟啉和带有负电荷的氧化石墨烯之间的静电相互作用、-相互作用，通过两步合成方法将氧化石墨烯和碘化三甲氨基苯基卟啉先后组装到聚苯乙烯微球的表面，制备了具有类核壳结构的聚苯乙烯微球/碘化三甲氨基苯基卟啉/氧化石墨烯复合体系。利用紫外-可见光光谱、拉曼光谱和透射电子显微镜等手段对所得产物进行光谱和形貌的表征。研究结果表明：氧化石墨烯和碘化三甲氨基苯基卟啉负载到了聚苯乙烯微球的表面。另外，将聚苯乙烯微球/氧化石墨烯加入到碘化三甲氨基苯基卟啉中，发现碘化三甲氨基苯基卟啉的荧光被明显猝灭，这主要归功于氧化石墨烯和碘化三甲氨基苯基卟啉之间存在明显的电子转移。继而，研究了聚苯乙烯微球/碘化三甲氨基苯基卟啉/氧化石墨烯复合体系在紫外光照和不同温度热处理的稳定性，研究结果发现氧化石墨烯的存在可明显提高碘化三甲氨基苯基卟啉在紫外光下的稳定性。另外，和单纯的碘化三甲氨基苯基卟啉相比，在聚苯乙烯微球/碘化三甲氨基苯基卟啉/氧化石墨烯复合体系中的碘化三甲氨基苯基卟啉具有更高的热稳定性。21878
毕业论文关键词：卟啉；氧化石墨烯；相互作用；光稳定性
Study of interaction between porphyrins and graphene oxide
Abstract: We have prepared the ternary polystyrene (PS) microsphere/graphene oxide (GO)/Cationic 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide complex material which was prepared though hydrophobic and - interaction between polystyrene microsphere and graphene oxide, electrostatic and - interaction between anionic graphene oxide and cationic 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide with two-steps assemble processes. The spectroscopy and morphology of the assembly (PS microsphere/GO/5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide) were characterized by transmission electron microscope, UV-vis spectroscopy and Raman spectroscopy. The results means that the GO and cationic 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide were successfully assembled on the surface of PS microsphere and PS microsphere/graphene oxide. The interaction between GO and 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide also was characterized by Fluorescence luminescence spectroscopy, which can considered as the occurrence of electron transfer. During the illumination process, PS microsphere/GO/TAPPI complex shows excellent ultra violet (UV) photostability compared with 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide film, which suggests that the presence of GO improves the 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide photostability. Meanwhile, the PS microsphere/GO/5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide complex exhibites better thermostability than sole 5, 10, 15, 20-tetrakis (p-N, N, N-trimethylanilinium) porphyrin tetraiodide.
Keywords：porphyrin; graphene oxide; interaction; photostability
目录

1 前言   1
1.1 石墨烯与卟啉的研究概况   1
    1.1.1 石墨烯的介绍   1
    1.1.2 卟啉的介绍   2
1.1.3 石墨烯的复合材料   2
1.1.4 卟啉-石墨烯体系   3
1.2 石墨烯与卟啉的制备   3
    1.2.1 石墨烯的制备   3
    1.2.2 石墨烯的功能化   4 卟啉和氧化石墨烯之间相互作用的研究:http://www.youerw.com/huaxue/lunwen_14291.html