Adsorption behavior of Cu2+ from aqueous solutions onto starch-g-poly(acrylic acid)/sodium humate hydrogels
文献类型：期刊论文
| 作者 | Zheng YA(郑易安) ; Wang AQ(王爱勤)
|
| 刊名 | Desalination
 |
| 出版日期 | 2010 |
| 卷号 | 263期号:1-3页码:170-175 |
| 关键词 | Starch Sodium humate Hydrogel Cu2+ adsorption Complexation |
| ISSN号 | 0011-9164 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | A series of starch-g-poly(acrylic acid)/sodium humate (St-g-PAA/SH) hydrogels were prepared and used to adsorb Cu2+ from the aqueous solution. The batch adsorption experiments were carried out by varying contact times (0–90 min), initial Cu2+ concentration (0.003–0.02 mol/L), and pH values (2.0–5.0). The effects of ion strength (5, 10 mmol/L NaCl) and competitive ion (5, 10 mmol/L Pb(NO3)2) on the adsorption capacity were investigated. The results indicated that the addition of 5% SH into St-g-PAA polymeric networks could not only improve the initial adsorption rate and final adsorption capacity for Cu2+, but also make a remarkable contribution to regeneration ability. St-g-PAA/SH hydrogels exhibited high adsorption capacity within a wide pH range and the adsorption data could be well described by the pseudo-second order kinetic model and Langmuir isotherm model. FTIR spectra before and after adsorption of Cu2+ on the hydrogels revealed that complexation was considered as the main adsorption mechanism. |
| 学科主题 | 功能高分子 |
| 收录类别 | SCI |
| 资助信息 | 甘肃省科技厅科技支撑项目(0804GKCA03A) |
| 语种 | 英语 |
| 公开日期 | 2012-09-02 |
| 源URL | [http://210.77.64.217/handle/362003/120]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 推荐引用方式 GB/T 7714 | Zheng YA,Wang AQ. Adsorption behavior of Cu2+ from aqueous solutions onto starch-g-poly(acrylic acid)/sodium humate hydrogels[J]. Desalination,2010,263(1-3):170-175. |
| APA | 郑易安,&王爱勤.(2010).Adsorption behavior of Cu2+ from aqueous solutions onto starch-g-poly(acrylic acid)/sodium humate hydrogels.Desalination,263(1-3),170-175. |
| MLA | 郑易安,et al."Adsorption behavior of Cu2+ from aqueous solutions onto starch-g-poly(acrylic acid)/sodium humate hydrogels".Desalination 263.1-3(2010):170-175. |
入库方式： OAI收割
来源：兰州化学物理研究所
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