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木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附

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谢建军, 姚庆鑫, 韩心强, 吴义强, 李新功. 木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附[J]. 环境工程学报, 2013, 7(8): 2947-2955.
引用本文: 谢建军, 姚庆鑫, 韩心强, 吴义强, 李新功. 木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附[J]. 环境工程学报, 2013, 7(8): 2947-2955.
shu
Xie Jianjun, Yao Qingxin, Han Xinqiang, Wu Yiqiang, Li Xingong. Selective adsorption of Pb2+ on wood flour/chitosan graft acrylic acid-acrylamide resins in two heavy metal ion solutions[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2947-2955.
Citation: Xie Jianjun, Yao Qingxin, Han Xinqiang, Wu Yiqiang, Li Xingong. Selective adsorption of Pb2+ on wood flour/chitosan graft acrylic acid-acrylamide resins in two heavy metal ion solutions[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2947-2955.
shu

木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附

  • 1.

    中南林业科技大学材料科学与工程学院, 长沙 410004

  • 基金项目:

    国家林业公益性行业科研专项(201104004)

    国家自然科学基金资助项目(31270603)

  • 中图分类号: TQ028.14;O647.314;TB34

Selective adsorption of Pb2+ on wood flour/chitosan graft acrylic acid-acrylamide resins in two heavy metal ion solutions

  • 1.

    School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China

  • Fund Project:

  • 摘要: 采用自制木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂R1、R2、R3对二元金属离子Cu2+/Pb2+和Zn2+/Pb2+溶液中的吸附性能进行了较系统考察。Pb2+离子溶液中存在竞争离子Cu2+、Zn2+时,随竞争离子浓度增加,3种吸附树脂R1、R2、R3对Pb2+的吸附量明显下降,而竞争离子吸附量显著增加。二元溶液中各金属离子浓度相同时,3种树脂对竞争离子Cu2+、Zn2+的吸附量大于对Pb2+的吸附量;各溶液中分别加入NaCl及NaNO3、尿素后,对Pb2+离子的吸附量下降迅速。随吸附树脂用量增加,竞争离子Cu2+、Zn2+的吸附量逐渐减小,Pb2+的吸附量在吸附树脂用量0.10g/L(Zn2+/Pb2+溶液)或0.15g/L(Cu2+/Pb2+溶液)时出现最大值。溶液pH值对树脂吸附性能有显著影响。3.02+的吸附量快速增大;52+的吸附量基本不变;92+的吸附量减小,而对竞争离子的吸附量或增大或减小。
    Abstract: The adsorption properties of three self-made wood flour/chitosan graft acrylic acid-acrylamide copolymerization resins (note as adsorbing resin R1, R2 and R3) were explored in detail for two metal ions, Cu2+/Pb2+ and Zn2+/Pb2+ mixing solutions. While there were the competitive ions Cu2+ and Zn2+ in Pb2+ solutions, the adsorption capacities of Pb2+ for three adsorption resins R1, R2 and R3 decreased obviously and those of the competitive ions Cu2+ and Zn2+ increased fastly with an increase of the concentrations of Cu2+ and Zn2+. The adsorption capacities of the competitive ions Cu2+ and Zn2+ were larger than those of Pb2+ when the concentration of each metal ions was equal in two metal ion solutions and those of Pb2+ decreased after NaCl, NaNO3 and urea were added into the metal ion Zn2+/Pb2+ or Cu2+/Pb2+ solution. When the masses(usage) of the adsorbing resins increased, the adsorption capacities of the competitive ions Cu2+ and Zn2+ decreased gradually while those of Pb2+ had a maximum at the mass concentration 0.10 g/L for Zn2+/Pb2+ solution or 0.15 g/L for Cu2+/Pb2+ solution with an increase of the usage of three types of the adsorption resins. The pH values of the Zn2+/Pb2+ or Cu2+/Pb2+ solution had an obvious effect on the adsorption properties of three resins R1, R2 and R3. The adsorption capacities of Cu2+, Zn2+ and Pb2+ for three resins R1, R2 and R3 increased quickly when the pH value was between 3 and 5, and these hardly changed when the pH value was between 5 and 9, while the adsorption capacities of Pb2+ for three resins R1, R2 and R3 decreased, and these of Cu2+ and Zn2+ for three resins R1, R2 and R3 either increased or decreased when the pH value was between 9 and 11.
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  • 收稿日期:  2012-08-22
  • 刊出日期:  2013-08-12
谢建军, 姚庆鑫, 韩心强, 吴义强, 李新功. 木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附[J]. 环境工程学报, 2013, 7(8): 2947-2955.
引用本文: 谢建军, 姚庆鑫, 韩心强, 吴义强, 李新功. 木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附[J]. 环境工程学报, 2013, 7(8): 2947-2955.
shu
Xie Jianjun, Yao Qingxin, Han Xinqiang, Wu Yiqiang, Li Xingong. Selective adsorption of Pb2+ on wood flour/chitosan graft acrylic acid-acrylamide resins in two heavy metal ion solutions[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2947-2955.
Citation: Xie Jianjun, Yao Qingxin, Han Xinqiang, Wu Yiqiang, Li Xingong. Selective adsorption of Pb2+ on wood flour/chitosan graft acrylic acid-acrylamide resins in two heavy metal ion solutions[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2947-2955.
shu

木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂对二元重金属离子溶液中Pb2+的吸附

  • 1. 中南林业科技大学材料科学与工程学院, 长沙 410004
  • 收稿日期:  2012-08-22
基金项目:

国家林业公益性行业科研专项(201104004)

国家自然科学基金资助项目(31270603)

摘要: 采用自制木粉/壳聚糖接枝丙烯酸-丙烯酰胺吸附树脂R1、R2、R3对二元金属离子Cu2+/Pb2+和Zn2+/Pb2+溶液中的吸附性能进行了较系统考察。Pb2+离子溶液中存在竞争离子Cu2+、Zn2+时,随竞争离子浓度增加,3种吸附树脂R1、R2、R3对Pb2+的吸附量明显下降,而竞争离子吸附量显著增加。二元溶液中各金属离子浓度相同时,3种树脂对竞争离子Cu2+、Zn2+的吸附量大于对Pb2+的吸附量;各溶液中分别加入NaCl及NaNO3、尿素后,对Pb2+离子的吸附量下降迅速。随吸附树脂用量增加,竞争离子Cu2+、Zn2+的吸附量逐渐减小,Pb2+的吸附量在吸附树脂用量0.10g/L(Zn2+/Pb2+溶液)或0.15g/L(Cu2+/Pb2+溶液)时出现最大值。溶液pH值对树脂吸附性能有显著影响。3.02+的吸附量快速增大;52+的吸附量基本不变;92+的吸附量减小,而对竞争离子的吸附量或增大或减小。

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