Graphene oxide/polypyrrole composites for highly selective enrichment of U(VI) from aqueous solutions
作者： Rui Hu , Dadong Shao , Xiangke Wang
DOI: 10.1039/C4PY00743C
关键词:
摘要: Graphene oxide/polypyrrole (GO/PPy) composites were synthesized via a dielectric barrier discharge (DBD) plasma technique in nitrogen conditions, and characterized by scanning electron microscopy (SEM), Raman spectroscopy, thermal gravimetric analysis (TGA), Fourier transformed infrared spectroscopy (FT-IR) X-ray photoelectron (XPS). The sorption of U(VI) ions on GO/PPy from aqueous solutions was investigated as function contact time, pH, ionic strength initial concentrations. capacity much higher than those GO, PPy many other materials today. obeyed the Langmuir model, mainly attributed to surface complexation coordination with oxygen- nitrogen-containing functional groups. selectivity presence metal (i.e., Co(II), Ni(II), Cd(II), Sr(II), Zn(II)) indicated an overall preference for ions. Moreover, could be regenerated through desorption adsorbed using 1.0 M HCl solution, cycling reused without obvious decrease capacity. All these performances indicate that are suitable highly selective removal preconcentration environmental pollution management.
rsc.org
sci-hub.se 参考文章(65)
R. Donat, A. Akdogan, E. Erdem, H. Cetisli, Thermodynamics of Pb2+ and Ni2+ adsorption onto natural bentonite from aqueous solutions. joint international conference on information sciences. ,vol. 286, pp. 43- 52 ,(2005) , 10.1016/J.JCIS.2005.01.045
Vikas Varshney, Soumya S. Patnaik, Ajit K. Roy, George Froudakis, Barry L. Farmer, Modeling of thermal transport in pillared-graphene architectures. ACS Nano. ,vol. 4, pp. 1153- 1161 ,(2010) , 10.1021/NN901341R
Xiaoli Tan, Qiaohui Fan, Xiangke Wang, Bernd Grambow, Eu(III) sorption to TiO2 (anatase and rutile): batch, XPS, and EXAFS studies. Environmental Science & Technology. ,vol. 43, pp. 3115- 3121 ,(2009) , 10.1021/ES803431C
Jiali Zhang, Haijun Yang, Guangxia Shen, Ping Cheng, Jingyan Zhang, Shouwu Guo, Reduction of graphene oxide vial-ascorbic acid Chem. Commun.. ,vol. 46, pp. 1112- 1114 ,(2010) , 10.1039/B917705A
Zhi-Qiang Zhao, Xing Chen, Qing Yang, Jin-Huai Liu, Xing-Jiu Huang, Beyond the selective adsorption of polypyrrole-reduced graphene oxide nanocomposite toward Hg2 +: Ultra-sensitive and -selective sensing Pb2 + by stripping voltammetry Electrochemistry Communications. ,vol. 23, pp. 21- 24 ,(2012) , 10.1016/J.ELECOM.2012.06.034
Ziyin Lin, Gordon H. Waller, Yan Liu, Meilin Liu, Ching-ping Wong, 3D Nitrogen-doped graphene prepared by pyrolysis of graphene oxide with polypyrrole for electrocatalysis of oxygen reduction reaction Nano Energy. ,vol. 2, pp. 241- 248 ,(2013) , 10.1016/J.NANOEN.2012.09.002
Jeffrey G. Catalano, Gordon E. Brown, Uranyl adsorption onto montmorillonite: Evaluation of binding sites and carbonate complexation Geochimica et Cosmochimica Acta. ,vol. 69, pp. 2995- 3005 ,(2005) , 10.1016/J.GCA.2005.01.025
Gan Tian, Junxia Geng, Yongdong Jin, Chunli Wang, Shuqiong Li, Zhen Chen, Hang Wang, Yongsheng Zhao, Shoujian Li, Sorption of uranium(VI) using oxime-grafted ordered mesoporous carbon CMK-5. Journal of Hazardous Materials. ,vol. 190, pp. 442- 450 ,(2011) , 10.1016/J.JHAZMAT.2011.03.066
Denis Lima Guerra, Emiliano Mendonça Silva, Claudio Airoldi, RETRACTED: Application of modified attapulgites as adsorbents for uranyl uptake from aqueous solution—Thermodynamic approach Process Safety and Environmental Protection. ,vol. 88, pp. 53- 61 ,(2010) , 10.1016/J.PSEP.2009.10.002
Juan Atalaya, Andreas Isacsson, Jari M. Kinaret, Continuum Elastic Modeling of Graphene Resonators Nano Letters. ,vol. 8, pp. 4196- 4200 ,(2008) , 10.1021/NL801733D