Removal of radiocobalt ions from aqueous solutions by natural halloysite nanotubes
文献类型：期刊论文
| 作者 | Li, Jie1,2; Wen, Feng1; Pan, Lisha1; Liu, Zhengjie3; Dong, Yunhui3 |
| 刊名 | JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
 |
| 出版日期 | 2013 |
| 卷号 | 295期号:1页码:431-438 |
| 关键词 | Natural Halloysite Nanotubes Radiocobalt Removal Thermodynamic Data |
| DOI | 10.1007/s10967-012-1823-x |
| 文献子类 | Article |
| 英文摘要 | In this study, natural halloysite nanotubes (HNTs) were applied to remove radiocobalt from wastewaters under various environmental parameters such as contact time, pH, ionic strength, foreign ions and temperature by using batch technique. The results indicated that the sorption of Co(II) on HNTs was dependent on ionic strength at pH < 8.5 and independent of ionic strength at pH > 8.5. Langmuir and Freundlich models were applied to simulate the sorption isotherms of Co(II) at three different temperatures of 293, 313 and 333 K. Langmuir model fitted the sorption isotherms of Co(II) on HNTs better than Freundlich model. The thermodynamic parameters (Delta G (0), Delta S (0) and Delta H (0)) calculated from the temperature-dependent sorption isotherms manifested that the sorption of Co(II) on HNTs was an endothermic and spontaneous process. The sorption of Co(II) was dominated by outer-sphere surface complexation or ion exchange at low pH, whereas inner-sphere surface complexation or precipitation was the main sorption mechanism at high pH. The experimental results show that HNTs have good potentialities for cost-effective disposal of cobalt-bearing wastewaters. |
| WOS关键词 | MULTIWALLED CARBON NANOTUBES ; MX-80 BENTONITE ; SEQUESTRATION MECHANISMS ; MAGNETIC COMPOSITE ; FOREIGN IONS ; WASTE-WATER ; FULVIC-ACID ; HUMIC-ACID ; RICE HUSK ; ADSORPTION |
| WOS研究方向 | Chemistry ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000312784200058 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/22199]  |
| 专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
| 作者单位 | 1.Hainan Univ, Key Lab Adv Mat Trop Isl Resources, Minist Educ, Sch Mat & Chem Engn, Haikou 570228, Peoples R China 2.Chinese Acad Sci, Key Lab Novel Thin Film Solar Cells, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jie,Wen, Feng,Pan, Lisha,et al. Removal of radiocobalt ions from aqueous solutions by natural halloysite nanotubes[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2013,295(1):431-438. |
| APA | Li, Jie,Wen, Feng,Pan, Lisha,Liu, Zhengjie,&Dong, Yunhui.(2013).Removal of radiocobalt ions from aqueous solutions by natural halloysite nanotubes.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,295(1),431-438. |
| MLA | Li, Jie,et al."Removal of radiocobalt ions from aqueous solutions by natural halloysite nanotubes".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 295.1(2013):431-438. |
入库方式： OAI收割
来源：合肥物质科学研究院
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