PE/PP fibrous adsorbents with bifunctional groups of tertiary amine and phosphate prepared by electron beam induced co-grafting for heavy metal adsorption of both cationic and anionic forms in acidic conditions

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2024-11-06 DOI:10.1016/j.polymer.2024.127792

Yanisa Limsuwan , Kasinee Hemvichian , Hiroyuki Hoshina , Jinhua Chen , Yoko Shimoyama , Haruyo Amada , Noriaki Seko , Thirawudh Pongprayoon

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引用次数: 0

Abstract

A novel fabric adsorbent having bifunctional groups of tertiary amine and phosphate was prepared by co-graft polymerization of 2-diethylaminoethyl methacrylate (NMA) and 2-hydroxyethyl methacrylate phosphate (PMA) onto a polyethylene/polypropylene nonwoven fabric (PE/PP NF) under low-energy electron beam acceleration. The process involved pre-irradiating the fabric and immersing it in the comonomer solution for grafting. The kinetics of radiation-induced graft polymerization at a total dose of 100 kGy was investigated. For pre-irradiation at 100 kGy, the optimum condition offering highest degree of grafting was at 12 wt% of NMA, 8 wt% of PMA and 4 h of reaction time. The adsorption of anions using hydrogen chromate (HCrO₄⁻) or Cr(VI) and cations using lead (Pb(II)), cadmium (Cd(II)) and copper (Cu(II)) in aqueous solution was carried out. The results demonstrated that the bifunctional adsorbent was able to adsorb both heavy metal anionic and cationic ions from water. The co-grafted adsorbents with tertiary amine and phosphate were able to adsorb 85 % Cr(VI) anion and 29 % Pb(II) cations from mixed Cr(VI) and Pb(II) solution at pH 3.0 and 71 % Pb(II), 13 % Cd(II) and 31 % Cu(II) from mixed Pb(II), Cd(II) and Cu(II) solution at pH 5.0. The unique achievement of this study is its hypothesis that a bifunctional adsorbent can be prepared from radiation-induced graft polymerization of two different monomers onto NF, along with proof that the prepared bifunctional adsorbent can actually absorb both cationic or anionic heavy metals forms. Additionally, the adsorbent's preparation offers a rapid and straightforward one-step grafting technique. Therefore, the new bifunctional adsorbents can remove heavy metal ions in aqueous solution, either in the cation or anion form, thus offering highly promising applications in industrial wastewater treatment.

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通过电子束诱导共接枝法制备具有叔胺和磷酸双功能基团的 PE/PP 纤维吸附剂，用于在酸性条件下吸附阳离子和阴离子形式的重金属。

在低能电子束加速条件下，通过在聚乙烯/聚丙烯无纺布（PE/PP NF）上接枝聚合甲基丙烯酸 2-二乙氨基乙酯（NMA）和甲基丙烯酸 2-羟乙基酯磷酸酯（PMA），制备了一种具有叔胺和磷酸酯双官能团的新型织物吸附剂。该工艺包括对织物进行预辐照，然后将其浸入共聚单体溶液中进行接枝。研究了总剂量为 100 kGy 的辐射诱导接枝聚合的动力学。在 100 kGy 的预辐照条件下，NMA 含量为 12 wt%、PMA 含量为 8 wt%、反应时间为 4 h 时接枝程度最高。对水溶液中的阴离子铬酸氢（HCrO4-）或六价铬（Cr(VI)）以及阳离子铅（Pb(II)）、镉（Cd(II)）和铜（Cu(II)）进行了吸附。结果表明，双功能吸附剂能够吸附水中的重金属阴离子和阳离子。在 pH 值为 3.0 时，与叔胺和磷酸盐接枝的吸附剂能够吸附混合 Cr(VI) 和 Pb(II) 溶液中 85% 的 Cr(VI) 阴离子和 29% 的 Pb(II) 阳离子；在 pH 值为 5.0 时，能够吸附混合 Pb(II)、Cd(II) 和 Cu(II) 溶液中 71% 的 Pb(II)、13% 的 Cd(II) 和 31% 的 Cu(II)。这项研究的独特之处在于，它提出了通过辐射诱导将两种不同的单体接枝聚合到 NF 上可以制备双功能吸附剂的假设，并证明所制备的双功能吸附剂实际上可以吸收阳离子或阴离子形式的重金属。此外，该吸附剂的制备采用了快速、简单的一步接枝技术。因此，这种新型双功能吸附剂可以去除水溶液中的阳离子或阴离子形式的重金属离子，从而在工业废水处理方面具有广阔的应用前景。

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.