naa a22 4500 510821480 CHVBK 20180411083534.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11814-012-0152-7 doi (NATIONALLICENCE)springer-10.1007/s11814-012-0152-7 Synthesis of a novel carbon nanofiber structure for removal of lead [Elektronische Daten] [Hossein Faghihian, Masoume Kooravand, Homa Atarodi] A new structure of carbon nanofibers was synthesized by chemical vapor deposition method. Kaolin was used as substrate and cyclohexanol and ferrocene as carbon source and catalyst, respectively. The morphology of the product was studied by scanning electron microscopy. Carbon nanofiber was modified with a mixture of nitric acid and sulfuric acid to enhance its adsorption capacity. The presence of functional groups on the treated adsorbent was assessed by FT-IR spectroscopy. The surface activity of the oxidized sample was estimated by Boehm's titration. The pH(PZC) of the samples was also measured. The adsorbent was then used for adsorption of Pb2+ at different experimental conditions. The optimized capacity of 211mg·g−1 was obtained. Kinetic and thermodynamic of the reaction were studied. It was concluded that the adsorption process is spontaneous and endothermic. Equilibrium data were well fitted to the Langmuir model and the pseudo-second-order kinetic model described the adsorption process. Korean Institute of Chemical Engineers, Seoul, Korea, 2012 Carbon Nanofiber nationallicence Chemical Vapor Deposition nationallicence Lead nationallicence Adsorption nationallicence pH( PZC ) nationallicence Faghihian Hossein Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Iran aut Kooravand Masoume Young Researchers Club, Shahreza Branch, Islamic Azad University, Shahreza, Iran aut Atarodi Homa Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Iran aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 357-363 0256-1115 30:2<357 2013 30 11814 https://doi.org/10.1007/s11814-012-0152-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0152-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Faghihian Hossein Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Iran aut NATIONALLICENCE 700 1- Kooravand Masoume Young Researchers Club, Shahreza Branch, Islamic Azad University, Shahreza, Iran aut NATIONALLICENCE 700 1- Atarodi Homa Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Iran aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 357-363 0256-1115 30:2<357 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer