期刊论文

Xie, J.

中文

环境工程学报

1673-9108

2013

7

8

2947-2955

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）；

本校为第一且通讯机构

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Cu~(2+)/Pb~(2+)和Zn~(2+)/Pb~(2+)溶液中的吸附性能进行了较系统考察。Pb~(2+)离子溶液中存在竞争离子Cu~(2+)、Zn~(2+)时,随竞争离子浓度增加,3种吸附树脂R1、R2、R3对Pb~(2+)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Cu~(2+)、Zn~(2+)的吸附量大于对Pb~(2+)的吸附量;各溶液中分别加入NaCl及NaNO_3、尿素后,对Pb~(2+)离子的吸附量下降迅速。随吸附树脂用量增加,竞争离子Cu~(2+)、Zn~(2+)的吸附量逐渐减小,Pb~(2+)的吸附量在吸附树脂用量0.10 g/L(Zn~(2+)/Pb~(2+...

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+ we...