首页|Upcycling of expanded polystyrene waste: Animation as adsorbent to recover Eriochrome Black T and Congo red
Upcycling of expanded polystyrene waste: Animation as adsorbent to recover Eriochrome Black T and Congo red
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Single-use polystyrene impose an enormous environmental threat, but their recycling has been proven challenging. Chemical conversion is the most versatile and robust approach to combat polystyrene waste. Carbon materials adsorbent EPMT was prepared from expanded polystyrene waste and applied to recover Eriochrome Black T (EBT) and Congo red (CR) from aqueous solution. EPMT was characterized by different analytical skills and the outcomes were used to analyze the corresponding adsorption interactions. The maximum adsorption capacity of the adsorbent for EBT and CR were 560.25 and 1010.19 mg/g, respectively. Thermodynamic showed the adsorption was subject to an endothermic spontaneous process. In terms of reusability, the performance of adsorbent was kept in a superior state all the time, and the dyes were recovered in better purity. The adsorbent displayed outstanding elimination competence and realized the separation of different dyes when it was used as padding to equip packed column. In brief, converting waste polystyrene to an adsorbent offers potential for water purification and provides a new route for upcycling of polystyrene into value-added materials.
Chemical modificationAdsorptionRegenerationDyesMechanisms
Da Chen、Zhengfeng Xie、Hao Ye
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Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
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