掺杂银纳米粒子的聚乙二醇二丙烯酸酯水凝胶用于光学传感和去除水中的汞离子

IF 3.7 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL
Luca Burratti, Michele Sisani, Irene Di Guida, Fabio De Matteis, Roberto Francini, Paolo Prosposito
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引用次数: 0

摘要

在这项研究中,描述了一种将银纳米粒子(AgNPs)整合到聚乙二醇二丙烯酸酯(PEGDA)水凝胶中的创新方法。该复合材料是文献中首次使用光聚合技术将AgNPs掺杂到PEGDA中,以实现双重功能:检测和消除水中的Hg(II)离子。采用光聚合工艺将AgNPs掺杂到pegda基基质中。在0 ~ 20 mg/L的浓度范围内,研究了汞(II)的传感特性。值得注意的是,在1 mg/L以下观察到线性依赖关系,伴随着0.3 mg/L的检测限。除了传感外,还研究了掺杂水凝胶去除Hg(II)离子的效率,并与未掺杂的PEGDA基质进行了比较。结果突出表明,掺杂材料的去除效率提高了约23%。最后,实验数据表明,Hg(II)离子与改性水凝胶之间的相互作用符合Langmuir等温线模型,表明化学吸附是改性水凝胶基质吸附Hg(II)的驱动机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Poly(ethylene glycol) Diacrylate Hydrogels Doped with Silver Nanoparticles for Optical Sensing and Removing Hg(II) Ions from Water
In this study, an innovative approach for the integration of silver nanoparticles (AgNPs) into poly(ethylene glycol) diacrylate (PEGDA) hydrogels is described. The composite material is the first in the literature where AgNPs were doped into PEGDA using photo-polymerization technique for a double function: detection and elimination of Hg(II) ions from water. The doping of AgNPs into PEGDA-based matrices was performed using a photo-polymerizable process. The Hg(II) sensing properties were explored in a concentration range from 0 to 20 mg/L. Notably, a linear dependence was observed up to 1 mg/L, accompanied by a limit of detection of 0.3 mg/L. Beyond sensing, the efficiency of the doped hydrogel in removing Hg(II) ions was also investigated and compared with an undoped PEGDA matrix. The outcome highlighted an enhanced removal efficiency of the doped material of approximately 23%. Finally, the experimental data suggested that the interaction between Hg(II) ions and the modified hydrogel adhered to the Langmuir isotherm model, which suggested that chemisorption was the driving mechanism of the adsorption of Hg(II) onto the modified hydrogel matrix.
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来源期刊
Chemosensors
Chemosensors Chemistry-Analytical Chemistry
CiteScore
5.00
自引率
9.50%
发文量
450
审稿时长
11 weeks
期刊介绍: Chemosensors (ISSN 2227-9040; CODEN: CHEMO9) is an international, scientific, open access journal on the science and technology of chemical sensors published quarterly online by MDPI.The journal is indexed in Scopus, SCIE (Web of Science), CAPlus / SciFinder, Inspec, Engineering Village and other databases.
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