Study on Preparation of Metal Ion Adsorbent by Grafting Binary Monomer on Alkali Wood Fiber With γ-Ray Co-Irradiation

IF 2.7 3区化学 Q2 POLYMER SCIENCE

Journal of Applied Polymer Science Pub Date : 2025-04-10 DOI:10.1002/app.57135

Peiguo Zhou, Ziqiao Liao, Xing Ru, Wenjing Yang, Zongbiao Dai, Jiaxin Hou, Liping Yang

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引用次数: 0

Abstract

The adsorption of heavy metals in wastewater using modified cellulose represents an environmentally friendly treatment method. In this research, acrylamide (AM) and acrylic acid (AA) were grafted onto alkali wood fiber (AWF) via ⁶⁰Co-γ irradiation to prepare the heavy metal adsorbent AWF-g-(AM-co-AA). This grafting method is efficient, ecofriendly, controllable, and widely applicable. Compared with monomer graft material or monomer material, the binary graft material has better adsorption properties, combining the advantages of both monomers while reducing the dosage. At an AM:AA ratio of 5:5, the grafting rate and grafting efficiency of AWF-g-(AM-co-AA) reached 196.17% and 58.85%, respectively, demonstrating excellent adsorption performance. Further optimization revealed that an AM:AA ratio of 8:2 achieved the highest grafting rate (232.97%) and grafting efficiency (69.86%), highlighting the flexibility and effectiveness of this approach. Key parameters such as treatment time, pH, and temperature were optimized, and the adsorption mechanism was thoroughly investigated. The optimal adsorption volume of AWF-g-(AM-co-AA) was 390 mg·g⁻¹ in a lead ion solution with an initial concentration of 500 mg·L⁻¹. These results highlight the promising industrial application of this adsorbent for heavy metal removal.

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γ射线共辐照碱木纤维接枝二元单体制备金属离子吸附剂研究

改性纤维素吸附废水中的重金属是一种环保的处理方法。本研究通过60Co-γ辐照将丙烯酰胺（AM）和丙烯酸（AA）接枝到碱木纤维（AWF）上，制备了重金属吸附剂AWF-g-(AM-co-AA)。该嫁接方法高效、环保、可控，具有广泛的应用前景。与单体接枝材料或单体材料相比，二元接枝材料具有更好的吸附性能，结合了两种单体的优点，同时减少了用量。在AM:AA比为5:5时，AWF-g-(AM-co-AA)的接枝率和接枝效率分别达到196.17%和58.85%，表现出优异的吸附性能。进一步优化表明，AM:AA比为8:2时，接枝率最高（232.97%），接枝效率最高（69.86%），突出了该方法的灵活性和有效性。对处理时间、pH、温度等关键参数进行了优化，并对吸附机理进行了深入研究。在初始浓度为500 mg·L−1的铅离子溶液中，AWF-g-(AM-co-AA)的最佳吸附体积为390 mg·g−1。这些结果突出了该吸附剂在重金属去除方面的工业应用前景。

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来源期刊

Journal of Applied Polymer Science 化学-高分子科学

CiteScore

5.70

自引率

10.00%

发文量

1280

审稿时长

2.7 months

期刊介绍： The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.