Insight into the adsorption of tetracycline onto amino and amino-Fe3+ gunctionalized mesoporous silica: Effect of functionalized groups
文献类型：期刊论文
| 作者 | Liu, Huijuan; Li, Haiyan; Zhang, Ziyang |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 65页码:171-178 |
| 关键词 | Adsorption Mesoporous silica Amino groups Fe3+ Tetracycline |
| ISSN号 | 1001-0742 |
| 文献子类 | Article |
| 英文摘要 | In order to study the influences of functionalized groups onto the adsorption of tetracycline, we prepared a series of amino and amino-Fe3+ complex mesoporous silica adsorbents with diverse content of amino and Fe3+ groups (named N, N-SBA15 and Fe-N, N-SBA15). The resulting mesoporous silica adsorbents were fully characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectrometer (FTIR) and N-2 adsorption/desorption isotherms. Furthermore, the effects of functionalized groups on the removal of TC were investigated. The results showed that the periodic ordered structure of SBA-15 was maintained after modification of amino/Fe3+ groups. The functionalized amino groups decreased the adsorption capacity while the coordinated Fe3+ increased the adsorption capacity. The adsorption kinetics of TC fitted pseudo-second-order model well and the equilibrium was achieved quickly. The adsorption isotherms fitted the Langmuir model well and with the Fe3+ content increased from 3.93% to 8.26%, the Q(max) of the adsorbents increased from 102 to 188 mmol/kg. The solution pH affected the adsorption of TC onto amino complex adsorbents slightly while influenced the adsorption onto Fe-amine complex adsorbents greatly. The adsorption of TC on SBA15 and N, N-SBA15 may be related to the formation of outer-sphere surface complexes, while the adsorption of TC onto Fe-N, N-SBA15 was mainly attributed to the inner-sphere surface complexes. This study could offer potential materials that have excellent adsorption behavior for environmental remediation and suggested useful information for the preparing other adsorbents in environmental applications. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41375]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Huijuan,Li, Haiyan,Zhang, Ziyang. Insight into the adsorption of tetracycline onto amino and amino-Fe3+ gunctionalized mesoporous silica: Effect of functionalized groups[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2018,65:171-178. |
| APA | Liu, Huijuan,Li, Haiyan,&Zhang, Ziyang.(2018).Insight into the adsorption of tetracycline onto amino and amino-Fe3+ gunctionalized mesoporous silica: Effect of functionalized groups.JOURNAL OF ENVIRONMENTAL SCIENCES,65,171-178. |
| MLA | Liu, Huijuan,et al."Insight into the adsorption of tetracycline onto amino and amino-Fe3+ gunctionalized mesoporous silica: Effect of functionalized groups".JOURNAL OF ENVIRONMENTAL SCIENCES 65(2018):171-178. |
入库方式： OAI收割
来源：生态环境研究中心
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