Thymine Functionalized Graphene Oxide for Fluorescence "Turn-off-on" Sensing of Hg2+ and I- in Aqueous Medium.
作者： Diptiman Dinda , Bikash Kumar Shaw , Shyamal Kumar Saha
关键词: Thymine 、 Surface modification 、 Oxide 、 Iodide 、 Materials science 、 Ion 、 Photochemistry 、 Graphene 、 Inorganic chemistry 、 Aqueous solution 、 Fluorescence
摘要: Selective detection of either mercury (Hg2+) or iodide (I–) ion using fluorescence turn-on turn-off processes is an important area research. In spite intensive research, simultaneous both and turn-off-on processes, high sensitivity theoretical support concerning the mechanisms are still lacking. present work, graphene oxide functionalized by thymine to realize Hg2+ I– selectively mechanism. Ultra extent ppb level exploiting large surface achieved. DFT calculations also assist detailed involving this PL quenching its regain during sensing these ions in aqueous solution.
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sci-hub.se 参考文章(45)
Ana B. Descalzo, Ramón Martínez-Máñez, Reiner Radeglia, Knut Rurack, Juan Soto, Coupling Selectivity with Sensitivity in an Integrated Chemosensor Framework: Design of a Hg2+-Responsive Probe, Operating above 500 nm Journal of the American Chemical Society. ,vol. 125, pp. 3418- 3419 ,(2003) , 10.1021/JA0290779
Anilkumar Bandela, Jugun Prakash Chinta, Chebrolu P. Rao, Role of the conformational changes brought in the arms of the 1,3-di-capped conjugate of calix[4]arene (L) in turning on the fluorescence of L by Hg2+ Dalton Transactions. ,vol. 40, pp. 11367- 11370 ,(2011) , 10.1039/C1DT11208B
Yanwu Zhu, Shanthi Murali, Weiwei Cai, Xuesong Li, Ji Won Suk, Jeffrey R Potts, Rodney S Ruoff, None, Graphene and Graphene Oxide: Synthesis, Properties, and Applications Advanced Materials. ,vol. 22, pp. 3906- 3924 ,(2010) , 10.1002/ADMA.201001068
Hung-Wei Liu, Shiuh-Jen Jiang, Shin-Hung Liu, Determination of cadmium, mercury and lead in seawater by electrothermal vaporization isotope dilution inductively coupled plasma mass spectrometry Spectrochimica Acta Part B: Atomic Spectroscopy. ,vol. 54, pp. 1367- 1375 ,(1999) , 10.1016/S0584-8547(99)00081-6
Philippe Grandjean, Pal Weihe, Roberta F. White, Frodi Debes, Cognitive Performance of Children Prenatally Exposed to “Safe” Levels of Methylmercury Environmental Research. ,vol. 77, pp. 165- 172 ,(1998) , 10.1006/ENRS.1997.3804
Elizabeth M. Nolan, Stephen J. Lippard, A "turn-on" fluorescent sensor for the selective detection of mercuric ion in aqueous media. Journal of the American Chemical Society. ,vol. 125, pp. 14270- 14271 ,(2003) , 10.1021/JA037995G
Xiangfeng Guo, Xuhong Qian, Lihua Jia, A Highly Selective and Sensitive Fluorescent Chemosensor for Hg2+ in Neutral Buffer Aqueous Solution Journal of the American Chemical Society. ,vol. 126, pp. 2272- 2273 ,(2004) , 10.1021/JA037604Y
Kui Zhang, Haibo Zhou, Qingsong Mei, Suhua Wang, Guijian Guan, Renyong Liu, Jian Zhang, Zhongping Zhang, Instant Visual Detection of Trinitrotoluene Particulates on Various Surfaces by Ratiometric Fluorescence of Dual-Emission Quantum Dots Hybrid Journal of the American Chemical Society. ,vol. 133, pp. 8424- 8427 ,(2011) , 10.1021/JA2015873
Shangwen Chen, Pipi Wang, Chunmei Jia, Qiang Lin, Wenbing Yuan, A mechanosynthesized, sequential, cyclic fluorescent probe for mercury and iodide ions in aqueous solutions Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 133, pp. 223- 228 ,(2014) , 10.1016/J.SAA.2014.05.067
Ramón Martínez-Máñez, Félix Sancenón, Fluorogenic and chromogenic chemosensors and reagents for anions. Chemical Reviews. ,vol. 103, pp. 4419- 4476 ,(2003) , 10.1021/CR010421E