Effective sorption of selenite by Fe-Mn binary oxide: influence of preparation method
文献类型：期刊论文
| 作者 | Wen, Xiaohu1,2; Zhang, Gaosheng3 |
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2018 |
| 卷号 | 102页码:173-183 |
| 关键词 | Fe-Mn binary oxide Coprecipitation Mechanical mixing Selenite Sorption |
| ISSN号 | 1944-3994 |
| DOI | 10.5004/dwt.2018.21852 |
| 通讯作者 | Zhang, Gaosheng(zgs77@126.com) |
| 英文摘要 | In this study, two Fe-Mn binary oxide sorbents with a same Mn:Fe molar ratio of 1:3 were prepared using two methods (coprecipitation and mechanical mixing), and they are denoted as Fe-c-Mn and Fe-m-Mn, respectively. Both Fe-m-Mn and Fe-c-Mn are amorphous and have similar structure with 2-line ferrihydrite. The Fe-c-Mn has a much higher specific surface area than the Fe-m-Mn. Selenite sorption on both Fe-m-Mn and Fe-c-Mn is pH dependent, decreasing with an increase in pH value. The estimated maximal sorption capacity of Se(IV) on the Fe-m-Mn and Fe-c-Mn is 48.6 and 70.5 mg/g at pH 7.0, respectively. In addition, the Fe-Mn binary oxide is able to adsorb selenite in the presence of competing anions and across a wide range of pH values. Among the co-existing anions, phosphate is the greatest competitor for adsorptive sites on the surface of oxide. Selenite may be sorbed onto the surface of the Fe-Mn binary oxide by formation of inner-sphere surface complexes. The high sorption capacity, low cost and environmental friendliness of the Fe-Mn binary oxide make it a potentially attractive sorbent for the removal of Se(IV) from water. |
| 收录类别 | SCI |
| WOS关键词 | IRON-OXIDES ; AQUEOUS-SOLUTIONS ; SURFACE-CHEMISTRY ; MANGANESE-DIOXIDE ; ALUMINUM-OXIDE ; REMOVAL ; ADSORPTION ; SELENIUM(IV) ; ADSORBENT ; WATER |
| WOS研究方向 | Engineering ; Water Resources |
| WOS类目 | Engineering, Chemical ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000445107600019 |
| 出版者 | DESALINATION PUBL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558311 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhang, Gaosheng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China 3.Guangzhou Univ, Collaborat Innovat Ctr Water Qual Safety & Protec, Guangzhou 510006, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, Xiaohu,Zhang, Gaosheng. Effective sorption of selenite by Fe-Mn binary oxide: influence of preparation method[J]. DESALINATION AND WATER TREATMENT,2018,102:173-183. |
| APA | Wen, Xiaohu,&Zhang, Gaosheng.(2018).Effective sorption of selenite by Fe-Mn binary oxide: influence of preparation method.DESALINATION AND WATER TREATMENT,102,173-183. |
| MLA | Wen, Xiaohu,et al."Effective sorption of selenite by Fe-Mn binary oxide: influence of preparation method".DESALINATION AND WATER TREATMENT 102(2018):173-183. |
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来源：寒区旱区环境与工程研究所
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