Switch-Off fluorescence of 5-amino-2-mercapto benzimidazole with Ag3O4 nanoparticles: Experimental and theoretical investigations
作者： S. Suresh , K. Jayamoorthy , P. Saravanan , S. Karthikeyan
DOI: 10.1016/J.SNB.2015.11.056
关键词: Photochemistry 、 Electron density 、 Nano- 、 Benzimidazole 、 Nanoparticle 、 Fluorescence 、 Quenching (fluorescence) 、 Electron transfer 、 Absorption (chemistry) 、 Chemistry
摘要: Abstract The binding interaction of 5-amino-2-mercaptobenzimidazole (AMB) with Ag 3 O 4 nanoparticles was studied. AMB adsorbs strongly on the surfaces nano semiconductor. studied by absorption, fluorescence, FT-IR, SEM and EDX spectral studies. were synthesized chemical route characterized XRD study. Excellent results observed due to electron transfer between nanoparticles. To confirm site AMB, molecular electrostatic potential (MEP) study carried out theoretically. It confirmed higher density at azomethine nitrogen atom. Photo-induced is responsible for fluorescence quenching AMB. occurs through static mechanism. apparent association constant ( K app = 2.0 × 10 5 M −1 ) obtained from data.
sci-hub.se 参考文章(34)
J. Jayabharathi, V. Thanikachalam, K. Jayamoorthy, Optical properties of 1,2-diaryl benzimidazole derivatives – A combined experimental and theoretical studies Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 115, pp. 74- 78 ,(2013) , 10.1016/J.SAA.2013.06.001
J. Jayabharathi, V. Thanikachalam, K. Jayamoorthy, Synthesis of some fluorescent benzimidazole derivatives using cobalt(II) hydroxide as highly efficient catalyst – spectral and physico-chemical studies and ESIPT process Photochemical and Photobiological Sciences. ,vol. 12, pp. 1761- 1773 ,(2013) , 10.1039/C3PP50083G
Bixia Lin, Zhuxi Fu, Yunbo Jia, Green luminescent center in undoped zinc oxide films deposited on silicon substrates Applied Physics Letters. ,vol. 79, pp. 943- 945 ,(2001) , 10.1063/1.1394173
Zhixiang Zhou, Suping Qian, Side Yao, Zhiyi Zhang, Electron transfer in colloidal TiO2 semiconductors sensitized by hypocrellin A Radiation Physics and Chemistry. ,vol. 65, pp. 241- 248 ,(2002) , 10.1016/S0969-806X(02)00212-8
C. Karunakaran, V. Rajeswari, P. Gomathisankar, Antibacterial and photocatalytic activities of sonochemically prepared ZnO and Ag–ZnO Journal of Alloys and Compounds. ,vol. 508, pp. 587- 591 ,(2010) , 10.1016/J.JALLCOM.2010.08.128
J. Jayabharathi, K. Jayamoorthy, V. Thanikachalam, Docking investigation and binding interaction of benzimidazole derivative with bovine serum albumin. Journal of Photochemistry and Photobiology B-biology. ,vol. 117, pp. 27- 32 ,(2012) , 10.1016/J.JPHOTOBIOL.2012.08.018
Jing-fu Liu, Su-juan Yu, Yong-guang Yin, Jing-bo Chao, Methods for separation, identification, characterization and quantification of silver nanoparticles Trends in Analytical Chemistry. ,vol. 33, pp. 95- 106 ,(2012) , 10.1016/J.TRAC.2011.10.010
Xianliang Zheng, Xingjia Zhao, Dangwei Guo, Bin Tang, Shuping Xu, Bing Zhao, Weiqing Xu, John R. Lombardi, Photochemical formation of silver nanodecahedra: structural selection by the excitation wavelength. Langmuir. ,vol. 25, pp. 3802- 3807 ,(2009) , 10.1021/LA803814J
J. Jayabharathi, V. Thanikachalam, K. Jayamoorthy, M. Venkatesh Perumal, Computational studies of 1,2-disubstituted benzimidazole derivatives Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 97, pp. 131- 136 ,(2012) , 10.1016/J.SAA.2012.05.085
C. Karunakaran, J. Jayabharathi, K. Jayamoorthy, K. Brindha Devi, Photoinduced electron-transfer from imidazole derivative to nano-semiconductors Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 89, pp. 187- 193 ,(2012) , 10.1016/J.SAA.2011.12.065