| 聚苯胺共价修饰的氧化石墨烯的合成及其光限幅性能 |
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| 引用本文： | 李聪琦,程红霞,潘月琴,白婷,陈彧. 聚苯胺共价修饰的氧化石墨烯的合成及其光限幅性能[J]. 医学教育探索, 2015, 28(1) |
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| 作者姓名： | 李聪琦 程红霞 潘月琴 白婷 陈彧 |
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| 作者单位： | 华东理工大学化学与分子工程学院，教育部结构可控先进功能材料及其制备重点实验室，;华东理工大学化学与分子工程学院，教育部结构可控先进功能材料及其制备重点实验室，;上海市虹口区业余大学，上海 200080;华东理工大学化学与分子工程学院，教育部结构可控先进功能材料及其制备重点实验室，;华东理工大学化学与分子工程学院，教育部结构可控先进功能材料及其制备重点实验室， |
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| 基金项目： | 国家自然科学基金（61378072）；国家外专局学校特色项目计划（TS2010HDLG024） |
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| 摘 要： | 利用酰胺化反应将聚苯胺(PANI)共价接枝到氧化石墨烯(GO)的表面，得到的杂化材料GO-PANI能很好地分散在常见的有机溶剂中。样品的XPS谱和红外光谱数据证实了在GO和PANI之间存在酰胺键。在316 nm激光激发下，PANI和GO-PANI分别在420 nm 和416 nm 处显示出很强的荧光峰。GO-PANI 的最大发射峰相对于PANI的发射峰蓝移了4 nm, 且荧光强度增强。开孔Z-扫描实验结果表明：与PANI相比，GO和PANI的共价键合使材料在532 nm激光辐照下表现出更大的非线性消光系数和三阶非线性极化率虚部值，光限幅性能明显增强。
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| 关 键 词： | 氧化石墨烯；聚苯胺；共价修饰；光限幅；非线性光学 |
Synthesis and Optical Limiting Performance of Graphene Oxide Covalently Functionalized with Polyaniline |
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| LI Cong qi,CHENG Hong xi,PAN Yue qin,BAI Ting,and CHEN Yu. Synthesis and Optical Limiting Performance of Graphene Oxide Covalently Functionalized with Polyaniline[J]. Researches in Medical Education, 2015, 28(1) |
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| Authors: | LI Cong qi CHENG Hong xi PAN Yue qin BAI Ting and CHEN Yu |
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| Affiliation: | Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200238, China;Shanghai Hongkou Spare Time College, Shanghai 200080, China;Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200238, China |
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| Abstract: | A soluble graphene oxide (GO) covalently functionalized with polyaniline (PANI), GO-PANI, was synthesized by an amidation reaction. The formation of an amido bond between PANI and GO was confirmed by X-ray photoelectron and Fourier Transform Infrared spectroscopy(FT-IR). By using 316 nm excitation light, both PANI and GO-PANI exhibited a strong fluorescence peak, which was located at 420 nm for PANI and 416 nm for GO-PANI, respectively. Compared with PANI, GO-PANI exhibited the 4 nm blue shift and enhanced fluorescence emission. The open aperture Z-scan results demonstrated that GO-PANI exhibited much larger nonlinear optical extinction coefficients, the imaginary third order susceptibility and better optical limiting performance than PANI at 532 nm as a result of the covalent link between GO and PANI. |
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| Keywords: | graphene oxide polyaniline covalent modification optical limiting nonlinear optics |
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