Simultaneous removal of Cd(II) and Sb(V) by Fe-Mn binary oxide: Positive effects of Cd(II) on Sb(V) adsorption
文献类型：期刊论文
| 作者 | Liu, Ruiping; Liu, Feng; Hu, Chengzhi; He, Zan; Liu, Huijuan; Qu, Jiuhui |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2015-12-30 |
| 卷号 | 300期号:0页码:847-854 |
| 关键词 | Antimony Cadmium Fe-Mn binary oxide Adsorption Surface precipitates |
| 英文摘要 | The coexistence of cadmium ion (Cd(II)) and antimonate (Sb(V)) creates the need for their simultaneous removal. This study aims to investigate the effects of positively-charged Cd(II) on the removal of negative Sb(V) ions by Fe-Mn binary oxide (FMBO) and associated mechanisms. The maximum Sb(V) adsorption density (Q(max,Sb(V))) increased from 1.02 to 1.32 and 2.01 mmol/g in the presence of Cd(II) at 0.25 and 0.50 mmol/L. Cd2+ exhibited a more significant positive effect than both calcium ion (Ca2+) and manganese ion (Mn2+). Cd2+ showed higher affinity towards FMBO and increased its zeta-potential more significantly compared to Ca2+ and Mn2+. The simultaneous adsorption of Sb(V) and Cd(II) onto FMBO can be achieved over a wide initial pH (pH(i)) range from 2 to 9, and Q(Sb(V)) decreases whereas Q(Cd(II)) increases with elevated pH(i). Their combined values, as expressed by Q(Sb(V)+Cd(II)), amount to about 2 mmol/g and vary slightly in the pH(i) range 4-9. FTIR and XPS spectra indicate the significant synergistic effect of Cd(II) on Sb(V) adsorption onto FMBO, and that little chemical valence transformation occurs. These results may be valuable for the treatment of wastewater with coexisting heavy metals such as Cd(II) and Sb(V). (C) 2015 Elsevier B.V. All rights reserved. |
| 研究领域[WOS] | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| WOS记录号 | WOS:000366223700097 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32850]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Ruiping,Liu, Feng,Hu, Chengzhi,et al. Simultaneous removal of Cd(II) and Sb(V) by Fe-Mn binary oxide: Positive effects of Cd(II) on Sb(V) adsorption[J]. JOURNAL OF HAZARDOUS MATERIALS,2015,300(0):847-854. |
| APA | Liu, Ruiping,Liu, Feng,Hu, Chengzhi,He, Zan,Liu, Huijuan,&Qu, Jiuhui.(2015).Simultaneous removal of Cd(II) and Sb(V) by Fe-Mn binary oxide: Positive effects of Cd(II) on Sb(V) adsorption.JOURNAL OF HAZARDOUS MATERIALS,300(0),847-854. |
| MLA | Liu, Ruiping,et al."Simultaneous removal of Cd(II) and Sb(V) by Fe-Mn binary oxide: Positive effects of Cd(II) on Sb(V) adsorption".JOURNAL OF HAZARDOUS MATERIALS 300.0(2015):847-854. |
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来源：生态环境研究中心
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