将废弃的聚对苯二甲酸乙二醇酯升级为多用途和可重复使用的吸附剂，用于可持续的水净化

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-09-16 DOI:10.1016/j.materresbull.2025.113788

Hui Guo, Fei Zeng, Dan Zhang, Wenbiao Xu

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引用次数: 0

摘要

本研究开发了一种将废弃的聚对苯二甲酸乙二醇酯（PET）转化为高效染料吸附剂的可持续方法，以解决塑料废物和水污染问题。通过对废PET进行热碳化，然后对杂多酸H5[PMo10V2O40] （PMoV）进行水热固定化，开发了一系列新型PMoV@C-PET-X材料。优化后的PMoV@C-PET-30在温和条件下，通过静电、π-π和η-π的协同相互作用，在5 min内实现了对亚甲基蓝（MB）的完全吸附。综合表征证实该材料具有多孔、石墨化的碳结构和均匀的活性位点分布。吸附机理由化学吸附为主（低浓度）向物理吸附/化学吸附复合（高浓度）转变。该材料表现出优异的环境稳定性（抗阳离子、阴离子和腐植酸）、多用途染料去除（阴离子/中性染料）和显著的可重复使用性。这项工作提出了一种将废塑料转化为有效的废水处理材料的创新方法，同时解决塑料和水污染问题，具有很强的可扩展性潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Upcycling waste polyethylene terephthalate into versatile and reusable adsorbents for sustainable water purification

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Upcycling waste polyethylene terephthalate into versatile and reusable adsorbents for sustainable water purification

This study developed a sustainable method to address plastic waste and water pollution by transforming discarded polyethylene terephthalate (PET) into high-efficiency dye adsorbents. Through thermal carbonization of waste PET followed by hydrothermal immobilization of heteropoly acid H₅[PMo₁₀V₂O₄₀] (PMoV), we developed a novel series of PMoV@C-PET-X materials. The optimized PMoV@C-PET-30 achieved complete methylene blue (MB) adsorption in 5 min under mild conditions via synergistic electrostatic, π-π, and η-π interactions. Comprehensive characterization confirmed the material’s porous, graphitized carbon structure and uniform active site distribution. The adsorption mechanism transitioned from chemisorption-dominated (low concentrations) to combined physisorption / chemisorption (high concentrations). The material demonstrated excellent environmental stability (resisting cations, anions, and humic acid (HA)), versatile dye removal (anionic / neutral dyes), and remarkable reusability. The work presents an innovative approach to convert waste plastics into effective wastewater treatment materials, simultaneously tackling plastic and water pollution with strong scalability potential.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.