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Preparation of Sulfonated Poly(arylene ether nitrile)-Based Adsorbent as a Highly Selective and Efficient Adsorbent
Xuefei Zhou1, Penglun Zheng2, Lingling Wang3
1Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 61173, China. zhouxuefei0@hotmail.com.
A novel sulfonated poly(arylene ether nitrile) (SPEN) based adsorbent, SPEN-Al-2, demonstrates high selectivity and efficiency for removing cationic dyes from water. This polymer adsorbent shows a maximum adsorption capacity of 877.5 mg/g, indicating its potential for wastewater treatment.
Area of Science:
- Materials Science
- Environmental Chemistry
- Polymer Chemistry
Background:
- Wastewater contamination by synthetic dyes is a significant environmental concern.
- Development of efficient and selective adsorbents is crucial for dye removal.
- Sulfonated poly(arylene ether nitrile) (SPEN) offers potential for adsorbent fabrication.
Purpose of the Study:
- To synthesize and characterize a novel SPEN-based adsorbent (SPEN-Al) for dye removal.
- To evaluate the adsorption performance, selectivity, and influencing factors for SPEN-Al-2.
- To assess the potential of SPEN-Al as a promising material for dye remediation.
Main Methods:
- Synthesis of SPEN-based adsorbents via aluminum (III) ion crosslinking.
- Characterization of adsorbent morphology and structure.
- Dye adsorption experiments with single and mixed dye systems, including kinetic and isotherm studies.
Main Results:
- SPEN-Al-2 exhibited superior adsorption capacities and uniform morphology.
- The adsorbent demonstrated excellent selectivity towards cationic dyes over anionic dyes.
- Maximum adsorption capacity reached 877.5 mg/g, with adsorption being endothermic.
Conclusions:
- The synthesized SPEN-Al-2 adsorbent is highly selective and efficient for cationic dye removal.
- Adsorption kinetics and equilibrium followed pseudo-second-order and Langmuir models, respectively.
- SPEN-Al-based adsorbents show significant promise for application in the field of dye removal from wastewater.
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