We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Removal of Cr(VI) from aqueous solutions using polymer nanotubes.
- Authors
Yu, Sheng; Yuan, Guoming; Gao, Hejun; Liao, Yunwen
- Abstract
The self-assembled polymer nanotubes were obtained by a simple solvothermal method. Its physicochemical properties were characterized by SEM, BET, TGA, FT-IR, XPS, and solid-state 13C magnetic resonance. The effects of initial pH, dosage, and coexisting ions were evaluated for its Cr(VI) adsorption performances. The result showed that polymer nanotubes surface had a large number of organic functional groups and porous structures. In 140 mg/L Cr(VI) solution, polymer nanotubes obtained the largest Cr(VI) adsorption capacity of 147.81 mg/g. Adsorption kinetics and isotherms agreed well with the pseudo-second-order and Redlich–Peterson models, respectively. The desorption process showed that the polymer nanotubes were easy to regenerate in strong polarity solution and had a high removal efficiency. Ionic strength played an important role in the adsorption and the adsorption interaction contained electrostatic interaction, reduction, and chelation in this work. The self-assembly method will constitute a highly efficient adsorbent.
- Subjects
POLYMER solutions; AQUEOUS solutions; ADSORPTION isotherms; IONIC strength; ELECTROSTATIC interaction; COORDINATION polymers; ADSORPTION capacity; ADSORPTION kinetics
- Publication
Journal of Materials Science, 2020, Vol 55, Issue 1, p163
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-019-03989-5