| Adsorption behavior of Cu2+ from aqueous solutions onto starch-g-poly(acrylic acid)/sodium humate hydrogels | |
| Department | 环境材料与生态化学研究发展中心 |
Zheng YA(郑易安) ; Hua SB(华水波); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2010 | |
| Source Publication | Desalination
 |
| ISSN | 0011-9164 |
| Volume | 263Issue:1-3Pages:170-175 |
| Abstract | 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. |
| Keyword | Starch Sodium Humate Hydrogel Cu2++ Adsorption Complexation |
| Subject Area | 功能高分子 |
| Funding Organization | 甘肃省科技厅科技支撑项目(0804GKCA03A) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/120 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Zheng YA,Hua SB,Wang AQ,et al. 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,华水波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(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. |
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| 201026313170175.pdf（555KB） | 开放获取 | License | View Application Full Text | |||
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