caa a22 4500 445881402 CHVBK 20180317145544.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00604-011-0622-3 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0622-3 Modification of multi-walled carbon nanotubes with tannic acid for the adsorption of La, Tb and Lu ions [Elektronische Daten] [Shanshan Tong, Shujie Zhao, Weihong Zhou, Ruigang Li, Qiong Jia] We have prepared an environmental friendly sorbent by modifying multi-walled carbon nanotubes with tannic acid. The adsorption of La (III), Tb (III) and Lu (III) as a function of contact time, initial solution pH, and quantity of adsorbent was studied using a batch technique. Both Langmuir and Freundlich isotherms can be used to describe the process. The major adsorption mechanisms were attributed to ion exchange and surface complexation. The kinetics of the adsorption follows a pseudo-second-order model. The thermodynamic functions ΔH, ΔG, and ΔS indicate that the sorption is endothermically driven. The adsorbed ions can be readily desorbed from the surface with 1M hydrochloric acid. Figure An environmental friendly sorbent, multi-walled carbon nanotubes modified with tannic acid has been prepared and used for the adsorption of REEs. Adsorption capacity, Langmuir and Freundlich adsorption isotherms, kinetics, and thermodynamic functions have been investigated. The major adsorption mechanism can be attributed to ion exchange and surface complexation. Springer-Verlag, 2011 Modification nationallicence Multi-walled carbon nanotubes nationallicence Tannic acid nationallicence Adsorption nationallicence Rare earth elements nationallicence Tong Shanshan College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut Zhao Shujie College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut Zhou Weihong College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut Li Ruigang Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, China aut Jia Qiong College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 257-264 0026-3672 174:3-4<257 2011 174 604 https://doi.org/10.1007/s00604-011-0622-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0622-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tong Shanshan College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut NATIONALLICENCE 700 1- Zhao Shujie College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut NATIONALLICENCE 700 1- Zhou Weihong College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut NATIONALLICENCE 700 1- Li Ruigang Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, China aut NATIONALLICENCE 700 1- Jia Qiong College of Chemistry, Jilin University, Renmin Street 5988#, 130022, Changchun, People's Republic of China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 257-264 0026-3672 174:3-4<257 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer