Development of sustainable magnetic polyurethane polymer nanocomposite for abatement of tetracycline antibiotics aqueous pollution: Response surface methodology and adsorption dynamics
文献类型：期刊论文
| 作者 | Okoli, Chukwunonso P.1,2,3; Ofomaja, Augustine E.1 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2019-04-20 |
| 卷号 | 217页码:42-55 |
| ISSN号 | 0959-6526 |
| 关键词 | Sustainable polyurethane polymer Magnetic nanocomposite Adsorption mechanism Tetracycline antibiotics Response surface methodology |
| DOI | 10.1016/j.jclepro.2019.01.157 |
| 通讯作者 | Okoli, Chukwunonso P.(nonsokoli@yahoo.com) |
| 英文摘要 | Poor surface characteristics and mechanical strength have impeded the industrial utilization of starch based polymers for wastewater treatment. Though miniaturization of adsorbent materials to nano scale level, has improved the surface area of materials, nano-scale adsorbents often form stable colloidal suspension/emulsion, and thus pose separation challenges. This study was designed to develop a novel starch-based magnetic polyurethane polymer for removal of tetracycline antibiotics from water media. Magnetic starch was synthesized by in-situ co-precipitation of Fe2+ and Fe3+ in the presence of starch, and thereafter subjected to one-step reticulation with 4,4-methylene diphenyl diisocyanate to produce magnetic starch polyurethane polymer nanocomposite (MSPP). The characterization studies with FTIR, SEM, TEM, XRD, VSM, BET, and XRF indicated successful synthesis. The characterization, adsorption isotherm and pH studies indicated pi-pi and pi-cation interaction as possible adsorption interactions. Besides optimization of desirable properties of MSPP, the RSM approach provided empirical evidence for the existence of the suggested adsorption interaction, as adsorption increased with increment in magnetite content and degree of crosslinking of the MSPP nanocomposite which were responsible for pi-cation and pi-pi interactions, respectively. The adsorption/desorption profile of MSPP indicated multiple potential applications beyond water treatment. Aside incorporation of magnetic separation, the regenerability, cheap, and sustainable nature of starch precursor confers a comparative cost advantage to the developed polymer. Considering its effectiveness in both simulated and real-time wastewater samples, MSPP holds great promise for commercialization of starch-based polymer adsorbents beyond decontamination applications. (C) 2019 Elsevier Ltd. All rights reserved. |
| WOS关键词 | HEAVY-METALS ; STARCH ; REMOVAL ; WATER ; NANOPARTICLES ; COMPOSITE ; SORPTION ; DESIGN ; PHARMACEUTICALS ; OPTIMIZATION |
| 资助项目 | Research Directorate of Vaal University of Technology, Vanderbijlpark, South Africa |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000461410100005 |
| 资助机构 | Research Directorate of Vaal University of Technology, Vanderbijlpark, South Africa |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49209]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Okoli, Chukwunonso P. |
| 作者单位 | 1.Vaal Univ Technol, Dept Chem, Biosorpt & Water Res Lab, P Bag X021, ZA-1900 Vanderbiljpark, South Africa 2.Fed Univ, Dept Chem Biochem & Mol Biol, Ndufu Alike Ikwo FUNAI, Lagos, Ebonyi State, Nigeria 3.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Okoli, Chukwunonso P.,Ofomaja, Augustine E.. Development of sustainable magnetic polyurethane polymer nanocomposite for abatement of tetracycline antibiotics aqueous pollution: Response surface methodology and adsorption dynamics[J]. JOURNAL OF CLEANER PRODUCTION,2019,217:42-55. |
| APA | Okoli, Chukwunonso P.,&Ofomaja, Augustine E..(2019).Development of sustainable magnetic polyurethane polymer nanocomposite for abatement of tetracycline antibiotics aqueous pollution: Response surface methodology and adsorption dynamics.JOURNAL OF CLEANER PRODUCTION,217,42-55. |
| MLA | Okoli, Chukwunonso P.,et al."Development of sustainable magnetic polyurethane polymer nanocomposite for abatement of tetracycline antibiotics aqueous pollution: Response surface methodology and adsorption dynamics".JOURNAL OF CLEANER PRODUCTION 217(2019):42-55. |
入库方式： OAI收割
来源：地理科学与资源研究所
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