Fluorescence Quenching of Humic Acid by Coated Metallic Silver Particles.
作者： Guocheng Zhu , Jun Yin
DOI: 10.1007/S10895-016-2012-Z
关键词:
摘要: Natural organic matter is an important component of the aquatic environments, which has attracted wide attention to its influence interaction with other pollutants. The present work aimed investigate fluorescence quenching (FQ) by coated metallic silver particles (AgNPs). In this work, using spectroscopy in conjunction UV-Vis and dynamic light scattering, effect AgNPs on intensity (FQI) humic acid (HA) was assessed. addition, electrolytes (NaCl, NaNO3 CaNO3) FQI observed. Results showed that dosage increased (>1.17X10−3 mM), quantum yield HA gradually decreased, implies FQ occurred. Furher observation process followed both first-order second-order Stern–Volmer functions. affected electrolytes: NaCl had reduction FQI, possibly resulting from dissolution AgNPs; Both Ca(NO3)2 but presented greater degree. As a result, degree alone electrolyte listed descent order as > NaCl, also subsequent experimental results, indicating mutual + NaCl.
springer.com
sci-hub.se 参考文章(38)
Annette Casandra Booker, Optical Characterization and Evaluation of Dye-Nanoparticle Interactions Virginia Tech. ,(2006)
N. S. Kloster, M. Brigante, G. Zanini, M. J. Avena, Aggregation Kinetics of Humic Acid: Effects of Ca2+ Concentration Springer, Dordrecht. pp. 335- 339 ,(2013) , 10.1007/978-94-007-5634-2_61
Virender K. Sharma, Jan Filip, Radek Zboril, Rajender S. Varma, Natural inorganic nanoparticles--formation, fate, and toxicity in the environment. Chemical Society Reviews. ,vol. 44, pp. 8410- 8423 ,(2015) , 10.1039/C5CS00236B
Vijayan Manoharan, Aswathy Ravindran, C. H. Anjali, Mechanistic Insights into Interaction of Humic Acid with Silver Nanoparticles Cell Biochemistry and Biophysics. ,vol. 68, pp. 127- 131 ,(2014) , 10.1007/S12013-013-9699-0
Suzanne Fery-Forgues, Dominique Lavabre, ARE FLUORESCENCE QUANTUM YIELDS SO TRICKY TO MEASURE? A DEMONSTRATION USING FAMILIAR STATIONERY PRODUCTS Journal of Chemical Education. ,vol. 76, pp. 1260- 1264 ,(1999) , 10.1021/ED076P1260
Hoon Hyung, John D. Fortner, Joseph B. Hughes, Jae-Hong Kim, Natural organic matter stabilizes carbon nanotubes in the aqueous phase Environmental Science & Technology. ,vol. 41, pp. 179- 184 ,(2007) , 10.1021/ES061817G
Guocheng Zhu, Jun Yin, Peng Zhang, Xiaofeng Wang, Gongduan Fan, Bin Hua, Bozhi Ren, Huaili Zheng, Baolin Deng, DOM removal by flocculation process: Fluorescence excitation–emission matrix spectroscopy (EEMs) characterization Desalination. ,vol. 346, pp. 38- 45 ,(2014) , 10.1016/J.DESAL.2014.04.031
Enrique Navarro, Flavio Piccapietra, Bettina Wagner, Fabio Marconi, Ralf Kaegi, Niksa Odzak, Laura Sigg, Renata Behra, Toxicity of silver nanoparticles to Chlamydomonas reinhardtii. Environmental Science & Technology. ,vol. 42, pp. 8959- 8964 ,(2008) , 10.1021/ES801785M
Cristina Buzea, Ivan I. Pacheco, Kevin Robbie, Nanomaterials and nanoparticles: Sources and toxicity Biointerphases. ,vol. 2, ,(2007) , 10.1116/1.2815690
Edward P. Kirby, Robert F. Steiner, INFLUENCE OF SOLVENT AND TEMPERATURE UPON THE FLUORESCENCE OF INDOLE DERIVATIVES. The Journal of Physical Chemistry. ,vol. 74, pp. 4480- 4490 ,(1970) , 10.1021/J100720A004