Abstract
We report the fabrication and application of high-performance and acid-tolerant fibers comprising polyethylenimine (PEI) and polyvinyl chloride (PVC) for platinum recovery from acidic waste solutions. The fibers were fabricated by amination of PVC with PEI and spin-extrusion via phase-inversion mechanism. Factors including the effects of chloride concentration, pH, competing ions, and amount of PEI on the adsorption performance, were studied. The adsorption mechanism was evaluated through XPS analysis, in which electrostatic binding of Pt(IV) and its partially reduced Pt(II) were revealed. The maximum Pt adsorption capacity in 0.1 M HCl was estimated by the Langmuir isotherm model as 410.53 mg/g. The fibers were applicable to Pt recovery from actual metal refining wastewater and demonstrated high efficiency of regeneration through adsorption-desorption cycles.
| Original language | English |
|---|---|
| Article number | 102839 |
| Journal | Journal of Environmental Chemical Engineering |
| Volume | 7 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2019.02 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 6 Clean Water and Sanitation
Keywords
- Amination
- Industrial wastewater
- Polyethylenimine
- Polyvinyl chloride
- Pt recovery
Quacquarelli Symonds(QS) Subject Topics
- Environmental Sciences
- Engineering - Petroleum
- Engineering - Chemical
Fingerprint
Dive into the research topics of 'High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers: Fabrication and application for recovery of platinum from acidic wastewaters'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver