|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Preparation of Nanosheet-montmorillonite Hydrogel for Removing Pb(II) from Water
||Wei Wang, Yunliang Zhao, Shaoxian Song
|On-Site Speaker (Planned)
In this work, an eco-friendly montmorillonite nanosheets-chitosan (MMNT-CS) hydrogel was prepared as a new and effective adsorbent. The fabrication of the MMNT-CS hydrogels were realized through the self-assembly of MMNT and CS chains. The prepared MMNT-CS hydrogels were characterized by AFM, SEM, TEM and BET, and were tested on the adsorption of Pb(II) at the interface of water/hydrogel for the Pb(II) removal from water. The effect of solution pH, contact time, initial Pb(II) concentration and temperature on Pb(II) adsorption from water on the adsorption were investigated. The experimental results indicated that the exfoliated MMNT enhanced the removal efficiency and adsorption rate of Pb(II) owing to increasing the effective adsorption sites. The adsorption kinetics were correlated well with the Langmuir model. The adsorption mechanism was found to be due to the ion exchange according to the analysis of XPS and FTIR.
||Planned: None Selected