| Fast removal of ammonium ion using a hydrogel optimized with response surface methodology | |
| Department | 环境材料与生态化学研究发展中心 |
Zheng YA(郑易安) ; Liu Y(刘毅); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2011 | |
| Source Publication | Chemical Engineering Journal
 |
| ISSN | 1385-8947 |
| Volume | 171Issue:3Pages:1201-1208 |
| Abstract | Response surface methodology (RSM) based on a three-level, three-variable, Box-Behnken design (BBD) was used to optimize the preparation parameters of a hydrogel consisted of polyvinyl alcohol (PVA), acrylic acid (AA) and tourmaline (Tm). With the adsorption capacity for ammonium ion (NH4+) as the response, the effects of three variables, i.e. neutralization degree (ND) of AA, ratio of PVA to AA, and ratio of Tm to AA, were investigated. The predicted appropriate preparation conditions for the hydrogel were ND of AA of 70%, PVA:AA of 0.0833 and Tm:AA of 0.5, under which a hydrogel was prepared and used as the adsorbent to remove NH4+. The effects of contact time, ion strength, NH4+ concentration, temperature, and pH value on the adsorption capacity were investigated using a batch experiment. The results indicated that the as-prepared hydrogel showed entangled three-dimensional network and had the advantages of fast adsorption rate and high adsorption capacity for NH4+ in a pH range from 3.0 to 8.0. The regeneration and reusable experiments were also performed, and it was observed that the as prepared hydrogel was stable and regenerable using strong acid (HCl) or base (NaOH) as the desorbing agents. |
| Keyword | Adsorption Ammonium Ion Box-behnken Design Hydrogel Response Surface Methodology |
| Subject Area | 功能高分子 |
| Funding Organization | 国家自然科学基金项目(20877077) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/81 |
| 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,Liu Y,Wang AQ,et al. Fast removal of ammonium ion using a hydrogel optimized with response surface methodology[J]. Chemical Engineering Journal,2011,171(3):1201-1208. |
| APA | 郑易安,刘毅,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2011).Fast removal of ammonium ion using a hydrogel optimized with response surface methodology.Chemical Engineering Journal,171(3),1201-1208. |
| MLA | 郑易安,et al."Fast removal of ammonium ion using a hydrogel optimized with response surface methodology".Chemical Engineering Journal 171.3(2011):1201-1208. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2011171312011208.pdf（1006KB） | 开放获取 | License | View Application Full Text | |||
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