Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
690290 | Journal of the Taiwan Institute of Chemical Engineers | 2016 | 6 Pages |
•A novel nickel-doped magnolia-leaf-derived porous carbon is synthesized.•The adsorption capacity of anionic dye (CR) is superior to some previously reported adsorbents.•The kinetic and equilibrium data will be useful for the fabrication and designing dye wastewater treatment.
A novel high-performance porous carbon material, nickel-doped magnolia-leaf-derived porous carbon (Ni/MPC), is synthesized by a KOH activation process and nickel-doping strategy. The morphology, microstructure, and element composition of Ni/MPC are characterized by scanning electron microscopy, nitrogen adsorption and desorption, and X-ray photoelectron spectroscopy, respectively. Removal of anionic dye congo red (CR) from contaminated water was performed in a batch reactor system to obtain adsorption kinetics and isotherms. The results showed that pseudo-second-order kinetic model and Langmuir adsorption isotherm matched well for the adsorption of CR onto Ni-doped MPCs. Compared with previously reported adsorbents, Ni/MPCs demonstrated a superior CR dye adsorption capability. The results of the present study substantiate that Ni/MPC is a promising adsorbent for the removal of the anionic dyes from wastewater.
Graphical abstractA novel magnolia-leaf-based porous carbon doped with metal nickel was presented in this work, which could be employed as a low-cost alternative for removal of the hazardous anionic dye from wastewater.Figure optionsDownload full-size imageDownload as PowerPoint slide