%0 Journal Article
%T Synthesize of dendritic fibrous nano-silica functionalized by cysteine and its application as advanced adsorbent
%A Mohammad Hasanzadeh
%A Nasrin Shadjou
%A Nilufar Khantan
%J Nanocomposites
%D 2019
%R https://doi.org/10.1080/20550324.2019.1669925
%X Abstract l-Cysteine-modified dendritic fibrous nanosilica grafted by amine groups (Cys-DFNS-NH2) have been synthesized by a novel hydrothermal method. The N2 adsorption¨Cdesorption isotherms analysis on the Cys-DFNS-NH2 show that the average pore volume and surface area of the prepared fibrous Cys-DFNS-NH2 were 2.2£¿cm3/g and 205£¿m2/g, respectively, while the average pore size is 6.06£¿nm. Adsorption behavior of the Cys-DFNS-NH2 for Cd2+, Cu2+, Ag+, and Pb2+ was investigated by electrochemical methods. The results show that Cys-DFNS-NH2 can selectively adsorb Cd2+, Ag+, and Pb2+ in different potentials. Finally, the application of the engineered adsorbent for the removal of Cd2+, Ag+, and Pb2+ from contaminated water samples was examined. This work provides a new platform to the synthesis of Cys-DFNS-NH2 with high specific surface area for efficient adsorbent of specific metal ions. Graphical Abstrac
%U https://www.tandfonline.com/doi/full/10.1080/20550324.2019.1669925