Scholarlink

<p>In this study, caffeic acid was immobilized onto the surface of nonwoven fabrics via mussel-inspired mimicry to obtain a caffeic acid-modified nonwoven adsorbent material (PP/PCA). The adsorption properties of the modified material toward Cu (II), Pb (II), and Cd (II) were systematically investigated. The material was characterized by various techniques, including scanning electron microscopy (SEM), infrared spectroscopy, ultraviolet spectroscopy, and zeta potential analysis. The successful distribution of heavy metal ions on the surface was confirmed by comparing the content before and after adsorption. Systematic adsorption experiments were conducted to examine the effects of contact time and solution pH on the adsorption performance. Under standard conditions (298&#xa0;K, pH = 6), the adsorbent showed high adsorption capacities for Cu (II), Pb (II), and Cd (II), reaching 88.6, 83.9, and 36.9&#xa0;mg/g, respectively. Thermodynamics confirmed a spontaneous (ΔG° &lt; 0) and exothermic (ΔH° &lt; 0) adsorption process. Kinetics followed a pseudo-second-order model (<i>R</i><sup>2</sup> &gt; 0.99), indicating that the reaction is chemical adsorption. These results suggest that the composite material modified via mussel-inspired bionic technology possesses effective adsorption functionality for Cu (II) and Pb (II).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Polycaffeic Acid-Modified PP Non-woven Fabric Prepared by Rapid Mussel-Inspired Technology at Room Temperature and Its Application in Heavy Metal Removal

  • 期刊论文

  • 发表日期：

    2026年1月30日

查看全文
  • Yue Li,
  • Maofeng Liang,
  • Jingwen Hu,
  • Yu Zhao,
  • Yanwei Fu,
  • Yuliang Pang,
  • Yuanshuai Wan,
  • Hongxinag Zhao,
  • Jianteng Sun,
  • Tiantian Liu,
  • Lichao Gao,
  • Haidong Cao,
  • Junfu Wei,
  • Xiaoqing Zhang,
  • Huicai Wang,
  • Yanbin Lu

摘要

In this study, caffeic acid was immobilized onto the surface of nonwoven fabrics via mussel-inspired mimicry to obtain a caffeic acid-modified nonwoven adsorbent material (PP/PCA). The adsorption properties of the modified material toward Cu (II), Pb (II), and Cd (II) were systematically investigated. The material was characterized by various techniques, including scanning electron microscopy (SEM), infrared spectroscopy, ultraviolet spectroscopy, and zeta potential analysis. The successful distribution of heavy metal ions on the surface was confirmed by comparing the content before and after adsorption. Systematic adsorption experiments were conducted to examine the effects of contact time and solution pH on the adsorption performance. Under standard conditions (298 K, pH = 6), the adsorbent showed high adsorption capacities for Cu (II), Pb (II), and Cd (II), reaching 88.6, 83.9, and 36.9 mg/g, respectively. Thermodynamics confirmed a spontaneous (ΔG° < 0) and exothermic (ΔH° < 0) adsorption process. Kinetics followed a pseudo-second-order model (R2 > 0.99), indicating that the reaction is chemical adsorption. These results suggest that the composite material modified via mussel-inspired bionic technology possesses effective adsorption functionality for Cu (II) and Pb (II).