Synthesis and adsorption behavior of dendritic Fibrous Nano-silica (DFNS) grafted by d-penicillamine as an advanced nanomaterial for the removal of some metal ions from contaminated water

Publication date: 1 September 2019Source: Journal of Electroanalytical Chemistry, Volume 848Author(s): Maryam Mahmudi, Nasrin Shadjou, Fatemeh Ahour Mohammad HasanzadehAbstractIn this work, d-penicillamine-modified dendritic Fibrous Nano-silica grafted by amine groups (dPA-DFNS-NH2) have been successfully synthesized which CTAB was used as a template. Surface area, average pore size, and pore volume of dPA-DFNS-NH2 was determined by BET/BJH analysis which were 78.2 m2 g−1, 6.7 nm, and 0.13 cm3 g−1. After the functionalization of DFNS-NH2 by dPA, the adsorption behavior of the dPA-DFNS-NH2 for Co2+, Ni2+, Ag+, and Pb2+ was investigated. The results show that the prepared dPA-DFNS-NH2 can selectively adsorb Co2+, Ni2+, Ag+, and Pb2+ in different potentials by some of electrochemical techniques. Finally, application of engineered adsorbent for the removal of Co2+, Ni2+, Ag+, and Pb2+ from local natural ground water samples was examined. This work provides the methods to prepare dPA functionalized DFNS-NH2 with high specific surface area and total pore volume, which has the potential to be applied as an efficient adsorbent for specific metal ions.Graphical abstract
Source: Journal of Electroanalytical Chemistry - Category: Chemistry Source Type: research