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过程工程学报 ›› 2015, Vol. 15 ›› Issue (5): 854-859.DOI: 10.12034/j.issn.1009-606X.215273

• 材料工程专栏 • 上一篇    下一篇

MUF-g-PMAA炭化材料的制备及其对Cu(II)的吸附

王艳君 胡拖平 高建峰 安富强 欧国利 王宇 周俊丽   

  1. 中北大学 理学院 中北大学 理学院 中北大学 理学院 中北大学化工系 中北大学 理学院 中北大学 理学院 中北大学 理学院
  • 收稿日期:2015-07-20 修回日期:2015-08-28 出版日期:2015-10-20 发布日期:2015-10-20
  • 通讯作者: 王艳君

Preparation of Carbonized MUF-g-PMAA Material and Its Adsorption Property to Cu(II)

WANG Yan-jun HU Tuo-ping GAO Jian-feng AN Fu-qiang OU Guo-li WANG Yu ZHOU Jun-li   

  1. School of Science, North University of China School of Science, North University of China School of Science, North University of China Department of Chemical Engineering, North University School of Science, North University of China School of Science, North University of China School of Science, North University of China
  • Received:2015-07-20 Revised:2015-08-28 Online:2015-10-20 Published:2015-10-20
  • Contact: WANG Yan-jun

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摘要： 采用氨基-过硫酸盐氧化-还原引发体系将单体甲基丙烯酸(MAA)接枝聚合在三聚氰胺-尿素-甲醛(MUF)树脂表面，制备接枝材料MUF-g-PMAA，将其低温炭化得到性能稳定的炭化材料，研究了其对Cu2+的吸附性能，考察了温度、pH值的影响. 结果表明，在pH=5.0、温度30℃条件下，PMAA-g-MUF对Cu2+的吸附容量达36.1 mg/g；吸附容量随pH值增大而增加，随温度升高呈先增加后减小的趋势，吸附符合Langmuir模型和准二级动力学方程.

关键词: 甲基丙烯酸, 接枝聚合, 炭化, 吸附, 树脂, 铜离子

Abstract: The monomer of methacrylic acid (MAA) was grafted on the surface of melamine-urea-formaldehyde (MUF) resin by using the redox initiating system formed by amino and persulfate, the grafted material MUF-g-PMAA was achieved. After carbonization at low-temperature, the carbonized material with more stable properties was obtained. The effects of temperature and pH value on the adsorption property of carbonized MUF-g-PMAA to Cu2+ were examined. The results indicated that the adsorption capacity of carbonized MUF-g-PMAA to Cu2+ reached up to 36.1 mg/g at pH=5.0 and 30℃. The adsorption capacity increased firstly and then decreased with temperature, and increased with pH value. Besides, the adsorption process conformed to the Langmuir adsorption isotherm model and pseudo-second kinetic equation.

Key words: methacrylic acid, grafting polymerization, carbonization, adsorption, resin, copper ion

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