Use Of Magnesium Silicate Functionalized With Thiourea For Sr(II) And Tl(I) Removal From Polluted Water
作者： A. Gabor , C. M. Davidescu , A. Negrea , M. Ciopec , P. Negrea
DOI: 10.2495/WP160181
关键词:
摘要: An appropriate management of high level radioactive waste and removal radiotoxic elements is important for the development safety nuclear energy system. Sr(II) a metal ion present in has to be removed better disposal geological formation. Another toxic Tl(I). It used numerous industries its toxicity human body higher than conventional heavy metals. This study investigates adsorption process Tl(I) from aqueous solutions on an adsorbent material. The proprieties solid support were improved through functionalization, using dry method. novelty this material that – magnesium silicate functionalized with new extractant, thiourea dissolved ethyl alcohol. obtained was subject dispersive X-ray analysis (EDX) scanning electron microscopy (SEM). In order establish capacities material, it metallic ions. Results show good performance ion, capacity 4.2 mg/g. Kinetically, these ions have best fit pseudo-second-order kinetic model. endothermic spontaneous due thermodynamic studies. Equilibrium studies also carried out Langmuir, Freundlich Sips models. proves favourable as Sr(II), polluted water.
sci-hub.st 参考文章(18)
Lavinia Lupa, Adina Negrea, Mihaela Ciopec, Petru Negrea, Raluca Vodă, Ionic liquids impregnated onto inorganic support used for thallium adsorption from aqueous solutions Separation and Purification Technology. ,vol. 155, pp. 75- 82 ,(2015) , 10.1016/J.SEPPUR.2015.06.043
Tewodros Asefa, Mark J. MacLachlan, Neil Coombs, Geoffrey A. Ozin, Periodic mesoporous organosilicas with organic groups inside the channel walls Nature. ,vol. 402, pp. 867- 871 ,(1999) , 10.1038/47229
Xiang Liu, Guan-Ru Chen, Duu-Jong Lee, Tohru Kawamoto, Hisashi Tanaka, Man-Li Chen, Yu-Kuo Luo, None, Adsorption removal of cesium from drinking waters: A mini review on use of biosorbents and other adsorbents Bioresource Technology. ,vol. 160, pp. 142- 149 ,(2014) , 10.1016/J.BIORTECH.2014.01.012
Irving Langmuir, THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM. Journal of the American Chemical Society. ,vol. 40, pp. 1361- 1403 ,(1918) , 10.1021/JA02242A004
Anyun Zhang, Jinying Li, Ying Dai, Lei Xu, Development of a new simultaneous separation of cesium and strontium by extraction chromatograph utilization of a hybridized macroporous silica-based functional material Separation and Purification Technology. ,vol. 127, pp. 39- 45 ,(2014) , 10.1016/J.SEPPUR.2014.02.022
P. Lestaevel, R. Racine, H. Bensoussan, C. Rouas, Y. Gueguen, I. Dublineau, J.-M. Bertho, P. Gourmelon, J.-R. Jourdain, M. Souidi, Césium 137 : propriétés et effets biologiques après contamination interne Medecine Nucleaire-imagerie Fonctionnelle Et Metabolique. ,vol. 34, pp. 108- 118 ,(2010) , 10.1016/J.MEDNUC.2009.12.003
C. Madoz-Escande, L. Garcia-Sanchez, T. Bonhomme, M. Morello, Influence of rainfall characteristics on elimination of aerosols of cesium, strontium, barium and tellurium deposited on grassland. Journal of Environmental Radioactivity. ,vol. 84, pp. 1- 20 ,(2005) , 10.1016/J.JENVRAD.2005.03.006
Luis Domínguez-Gadea, Laura Cerezo, Decontamination of radioisotopes Reports of Practical Oncology & Radiotherapy. ,vol. 16, pp. 147- 152 ,(2011) , 10.1016/J.RPOR.2011.05.002
Robert Sips, On the Structure of a Catalyst Surface The Journal of Chemical Physics. ,vol. 16, pp. 490- 495 ,(1948) , 10.1063/1.1746922
Chengliang Xiao, Anyun Zhang, Zhifang Chai, Synthesis and characterization of novel macroporous silica-polymer-calixcrown hybrid supramolecular recognition materials for effective separation of cesium. Journal of Hazardous Materials. ,vol. 267, pp. 109- 118 ,(2014) , 10.1016/J.JHAZMAT.2013.12.048