| Removal of heavy metals using polyvinyl alcohol semi-IPN poly (acrylic acid)/tourmaline composite 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) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2010 | |
| Source Publication | Chemical Engineering Journal
 |
| ISSN | 1385-8947 |
| Volume | 162Issue:1Pages:186-193 |
| Abstract | The heavy metals, Pb2+ and Cu2+ adsorption was studied using polyvinyl alcohol semi-IPN poly (acrylic acid)/tourmaline (PVA semi-IPN PAA/Tm) composite as the adsorbent. During the preparation process of adsorbent, response surface methodology (RSM) based on three-variable-three-level Box–Behnken design (BBD) was employed. The effects of three variables, i.e. neutralization degree (ND) of AA, PVA:AA ratio, and Tm:AA ratio on the adsorption capacity for Pb2+ and Cu2+ (as response) were evaluated. The results indicated that ND of AA and Tm:AA were the most significant preparation variables affecting Pb2+ and Cu2+ removal. Models capable of predicting the maximum adsorption capacity were established and the optimum preparation conditions were determined as follows: ND of AA, 68–69%, PVA:AA, 0.0973, Tm:AA, 0.20. Under these conditions, the predicted values of models (3.18 mmol/g for Pb2+ and 3.00 mmol/g for Cu2+) were in good agreement with experimental results (3.12 mmol/g for Pb2+ and 2.98 mmol/g for Cu2+). The adsorption kinetics of as-prepared composite under non-competitive and competitive conditions suggested that the adsorption equilibrium could be achieved within 30 min. In addition, as-prepared composite showed good reusability with 0.1 mol/L EDTA as the desorbing agent, and the adsorption process was mainly controlled by ion exchange and chelation interaction. |
| Keyword | Response Surface Methodology Box–behnken Design Adsorption Heavy Metal Polyvinyl Alcohol |
| 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 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/122 |
| 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,Wang AQ,王爱勤 aqwang@licp.cas.cn. Removal of heavy metals using polyvinyl alcohol semi-IPN poly (acrylic acid)/tourmaline composite optimized with response surface methodology[J]. Chemical Engineering Journal,2010,162(1):186-193. |
| APA | 郑易安,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2010).Removal of heavy metals using polyvinyl alcohol semi-IPN poly (acrylic acid)/tourmaline composite optimized with response surface methodology.Chemical Engineering Journal,162(1),186-193. |
| MLA | 郑易安,et al."Removal of heavy metals using polyvinyl alcohol semi-IPN poly (acrylic acid)/tourmaline composite optimized with response surface methodology".Chemical Engineering Journal 162.1(2010):186-193. |
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| 20101621186193.pdf（700KB） | 开放获取 | License | View Application Full Text | |||
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