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, Yian1,2; Hua, Shuibo1,2; Wang, Aiqin1 |
| 刊名 | Desalination
 |
| 出版日期 | 2010-11-30 |
| 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 |
| DOI | 10.1016/j.desal.2010.06.054 |
| 通讯作者 | Wang, aiqin(aqwang@lzb.ac.cn) |
| 英文摘要 | 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. (c) 2010 elsevier b.v. all rights reserved. |
| WOS关键词 | CELLULOSE-BASED HYDROGELS ; SUPERABSORBENT COMPOSITE ; HUMIC-ACID ; GRAFT-POLYMERIZATION ; SODIUM HUMATE ; WASTE-WATER ; DYE REMOVAL ; CHITOSAN ; ADSORBENTS ; PROPERTY |
| WOS研究方向 | Engineering ; Water Resources |
| WOS类目 | Engineering, Chemical ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000283474900023 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2405681 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Aiqin |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yian,Hua, Shuibo,Wang, Aiqin. 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 | Zheng, Yian,Hua, Shuibo,&Wang, Aiqin.(2010).Adsorption behavior of cu2+ from aqueous solutions onto starch-g-poly (acrylic acid)/sodium humate hydrogels.Desalination,263(1-3),170-175. |
| MLA | Zheng, Yian,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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来源：中国科学院大学
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