Novel phenol-functionalized hypercrosslinked polymer for efficient tetracycline and iodine adsorption

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-01-12 DOI:10.1016/j.apsusc.2025.162385

JiaJun Bi, KaiYu Bao, Min Zhao, YuPeng Zha, TianHao Chen, ChangYan Huang, ZhanAo Lv

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Abstract

The environmental remediation is a growing focus in recent years. Hypercrosslinked polymers (HCPs) are highly valuable as prominent adsorbents for pollutants due to its structural designability, low production costs and high intrinsic porosities. In this study, a novel phenol-based hypercrosslinked polymer namely HCPs-TBP with abundant O sites was constructed via a one-step hyper-crosslinking reaction. The structure and thermal stability of HCPs-TBP was confirmed by Fourier transform infrared (FT-IR) spectra, scanning electron microscopy (SEM), elemental mappings, powder X-ray diffraction (PXRD) patterns, N₂ adsorption–desorption, ¹³C nuclear magnetic resonance spectroscopy (¹³C MAS NMR), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). Combining with the electron-donor –OH functional groups, electron-rich conjugated-π benzene rings structure and the abundant pore structure, the phenol-functionalized porous polymers showed good adsorption capacity for the tetracycline and iodine, and the adsorption capacity of I₂ solution achieved 237.6 mg g^-1, accompanied by repeating 5 times adsorption of tetracycline and iodine without any structure collapse. Additionally, the quasi-first-order and quasi-secondary kinetic model, as well as Langmuir, Freundlich and Tempkin models, successfully described the adsorption kinetics and isothermal adsorption of iodine solution by HCPs-TBP. The study unlocks new possibilities for further application of HCPs in adsorption of environmental pollutants from water.

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新型苯酚功能化高交联聚合物对四环素和碘的高效吸附

近年来，环境修复日益受到关注。超交联聚合物（HCPs）因其结构可设计性、低生产成本和高固有孔隙率等特点，成为吸附污染物的重要吸附剂。本研究通过一步超交联反应构建了一种新型苯酚基超交联聚合物，即具有丰富 O 位点的 HCPs-TBP。傅立叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）、元素映射、粉末 X 射线衍射（PXRD）图谱、N2 吸附-解吸、13C 核磁共振光谱（13C MAS NMR）、热重分析（TGA）和 X 射线光电子能谱（XPS）证实了 HCPs-TBP 的结构和热稳定性。苯酚官能化多孔聚合物具有良好的四环素和碘吸附能力，对 I2 溶液的吸附量达到 237.6 mg/g，并可重复吸附 5 次四环素和碘，且无结构塌陷。此外，准一阶和准二级动力学模型以及 Langmuir、Freundlich 和 Tempkin 模型成功地描述了 HCPs-TBP 对碘溶液的吸附动力学和等温吸附。这项研究为 HCPs 在吸附水中环境污染物方面的进一步应用提供了新的可能性。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.

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