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膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能

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何玉凤, 王燕, 张振花, 王荣民, 何文娟, 黄一君. 膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能[J]. 环境化学, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
引用本文: 何玉凤, 王燕, 张振花, 王荣民, 何文娟, 黄一君. 膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能[J]. 环境化学, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
shu
HE Yufeng, WANG Yan, ZHANG Zhenhua, WANG Rongmin, HE Wenjuan, HUANG Yijun. Preparation of bentonite-copolymer composite and its decolorizing performances in removing methylene-blue[J]. Environmental Chemistry, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
Citation: HE Yufeng, WANG Yan, ZHANG Zhenhua, WANG Rongmin, HE Wenjuan, HUANG Yijun. Preparation of bentonite-copolymer composite and its decolorizing performances in removing methylene-blue[J]. Environmental Chemistry, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
shu

膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能

  • 1.

    生态环境相关高分子材料教育部重点实验室, 甘肃省高分子材料重点实验室, 西北师范大学化学化工学院, 兰州, 730070

  • 基金项目:

    国家自然科学基金(21263024,21161017,21244003)

    甘肃省高等学校研究生导师科研项目(1201-15)资助.

Preparation of bentonite-copolymer composite and its decolorizing performances in removing methylene-blue

  • 1.

    Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education Key, Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China

  • Fund Project:

  • 摘要: 将乙酸乙烯酯、马来酸酐和丙烯酸作为功能性单体,在钠基膨润土分散体系中进行原位共聚反应,制备了一种膨润土基共聚复合物(P(MAVM)/NaB),采用FT-IR、XRD、SEM等手段对其结构进行了表征.结果表明,NaB与共聚物均匀复合,其中部分高分子链进入了膨润土层间,扩大了缝隙.将膨润土基共聚复合物用于染料亚甲基蓝(MB)的吸附,考察了影响膨润土基共聚复合物吸附亚甲基蓝的主要因素.结果表明:25℃,吸附剂用量为0.1 g·L-1,振荡5 min,MB初始浓度为20 mg·L-1的条件下,MB脱色率可达97.7%,吸附容量达195.46 mg·g-1.处理后水样的色度达到国家污水综合排放一级标准.同时研究了吸附机理,结果发现:吸附过程符合准二级动力学模型,MB通过电中和、氢键及范德华力作用被P(MAVM)/NaB吸附.
    Abstract: Using sodium bentonite as carriers, a bentonite-copolymer composite (P(MAVM)/NaB) was successfully prepared by in-situ polymerization of functional monomers, maleic anhydride, acrylic acid and vinyl acetate. The structure of P(MAVM)/NaB was characterized by FT-IR, XRD and SEM. It indicated that the copolymer chains were partly inserted into layers of bentonite, and enlarged its gap. The bentonite-copolymer composite was applied to remove methylene blue (MB), a typical cationic dye. Some important influencing factors on removing MB by bentonite-copolymer composite were investigated. The optimum adsorption conditions were obtained as following: the bentonite-copolymer composite dosage is 0.1 g·L-1, initial concentration of MB is 20 mg·L-1, 5 min reaction at room temperature (25℃). The removal rate of MB reached 97.7%, and the adsorption capacity of bentonite-copolymer composite was up to 195.46 mg·g-1. The chromaticity color of effluent met the Class I of National Intergated Wastewater Discharge Standard. Its adsorption mechanism was also investigated. It was found that the adsorption process was consistent with quasi-secondorder kinetic dynamic equation. It is suggested that MB was adsorbed to P(MAVM)/NaB by charge neutralization, hydrogen bond and vander waals force.
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    [2] Rafatullah M, Sulaiman O, Hashim R, et al. Adsorption of methylene blue on low-cost adsorbents:a review[J]. Journal of Hazardous Materials, 2010, 177 (1/3):70-80
    [3] Lau W J, Ismail A F. Polymeric nanofiltration membranes for textile dye wastewater treatment: Preparation, performance evaluation, transport modelling, and fouling controla review[J]. Desalination, 2009, 245(1/3): 321-348
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  • 收稿日期:  2012-10-19
何玉凤, 王燕, 张振花, 王荣民, 何文娟, 黄一君. 膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能[J]. 环境化学, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
引用本文: 何玉凤, 王燕, 张振花, 王荣民, 何文娟, 黄一君. 膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能[J]. 环境化学, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
shu
HE Yufeng, WANG Yan, ZHANG Zhenhua, WANG Rongmin, HE Wenjuan, HUANG Yijun. Preparation of bentonite-copolymer composite and its decolorizing performances in removing methylene-blue[J]. Environmental Chemistry, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
Citation: HE Yufeng, WANG Yan, ZHANG Zhenhua, WANG Rongmin, HE Wenjuan, HUANG Yijun. Preparation of bentonite-copolymer composite and its decolorizing performances in removing methylene-blue[J]. Environmental Chemistry, 2013, 32(8): 1554-1559. doi: 10.7524/j.issn.0254-6108.2013.08.021
shu

膨润土基共聚复合物的制备及对亚甲基蓝的脱色性能

  • 1. 生态环境相关高分子材料教育部重点实验室, 甘肃省高分子材料重点实验室, 西北师范大学化学化工学院, 兰州, 730070
  • 收稿日期:  2012-10-19
基金项目:

国家自然科学基金(21263024,21161017,21244003)

甘肃省高等学校研究生导师科研项目(1201-15)资助.

摘要: 将乙酸乙烯酯、马来酸酐和丙烯酸作为功能性单体,在钠基膨润土分散体系中进行原位共聚反应,制备了一种膨润土基共聚复合物(P(MAVM)/NaB),采用FT-IR、XRD、SEM等手段对其结构进行了表征.结果表明,NaB与共聚物均匀复合,其中部分高分子链进入了膨润土层间,扩大了缝隙.将膨润土基共聚复合物用于染料亚甲基蓝(MB)的吸附,考察了影响膨润土基共聚复合物吸附亚甲基蓝的主要因素.结果表明:25℃,吸附剂用量为0.1 g·L-1,振荡5 min,MB初始浓度为20 mg·L-1的条件下,MB脱色率可达97.7%,吸附容量达195.46 mg·g-1.处理后水样的色度达到国家污水综合排放一级标准.同时研究了吸附机理,结果发现:吸附过程符合准二级动力学模型,MB通过电中和、氢键及范德华力作用被P(MAVM)/NaB吸附.

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