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Cellulose based hyper-crosslinked polymer for efficiently recovering valuable materials from PO/SM wastewater
Kongyou Wu1, Kungang Chai1, Liqin Zhou1
1School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, PR China.
International Journal of Biological Macromolecules
|October 12, 2021
Summary
A novel cellulose-based polymer efficiently removes ethylbenzene and styrene from wastewater. This hypercrosslinked polymer (TOC-PS-HCP) demonstrates high adsorption capacity and stability for pollutant recovery.
Area of Science:
- Polymer Chemistry
- Environmental Science
- Materials Science
Background:
- Wastewater contamination by ethylbenzene and styrene poses environmental risks.
- Efficient and stable adsorbents are needed for pollutant removal.
Purpose of the Study:
- To synthesize and characterize a novel polymer for ethylbenzene and styrene recovery.
- To evaluate the adsorption performance and mechanism of the synthesized polymer.
Main Methods:
- Synthesis of TEMPO-oxidized cellulose-grafted-polystyrene hypercrosslinked polymer (TOC-PS-HCP).
- Structural characterization using various techniques.
- Adsorption experiments to assess recovery efficiency in simulated wastewater.
- Investigation of adsorption mechanism through experimental and theoretical analysis.
Main Results:
- TOC-PS-HCP exhibited suitable hydrophobicity and a high specific surface area (601.20 m²·g⁻¹).
- The polymer rapidly adsorbed ethylbenzene and styrene from aqueous solutions.
- Stable recovery rates were observed under varying aqueous conditions and in recycle experiments.
- TOC-PS-HCP showed superior affinity for ethylbenzene and styrene compared to other materials.
Conclusions:
- TOC-PS-HCP is an effective adsorbent for removing ethylbenzene and styrene from wastewater.
- The adsorption mechanism likely involves van der Waals forces and π-π stacking.
- The material demonstrates potential for practical application in wastewater treatment.
