Enhanced sequestration of selenite in water by nanoscale zero valent iron immobilization on carbon nanotubes by a combined batch, XPS and XAFS investigation
文献类型：期刊论文
| 作者 | Sheng, GD; Alsaedi, A; Shammakh, W; Monaquel, S; Sheng, J; Wang, XK; Li, H; Huang, YY |
| 刊名 | CARBON
 |
| 出版日期 | 2016 |
| 卷号 | 99期号:-页码:123—130 |
| ISSN号 | 0008-6223 |
| 关键词 | HUMIC SUBSTANCE INTERACTION NATURAL ORGANIC-MATTER ZEROVALENT IRON PILLARED BENTONITE PLATES FE-0-CNTS METHYLENE-BLUE MODEL-COMPOUND WASTE-WATER REMOVAL REDUCTION |
| 通讯作者 | Sheng, GD (reprint author), Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China. |
| 英文摘要 | In this paper, nanoscale zero-valent iron (NZVI) immobilized on carbon nanotube (CNT) composite (NZVI/CNT) was prepared, characterized and used for the sequestration of Se(IV) in water. The structural analysis revealed that NZVI were uniformly immobilized on CNT surfaces, and thus the oxidation and aggregation of NZVI was obviously minimized. Compared to bare NZVI, the NZVI/CNT exhibited much higher efficiency on Se(IV) sequestration due to the good synergistic effect between CNT adsorption and NZVI reduction. The results from X-ray absorption fine structure (XAFS) revealed that Se(IV) could be almost completely reduced into Se(0)/Se(-II) by NZVI/CNT, while partial reduction occurred on NZVI with a trace of Se(IV) adsorbed on the corrosion products. Besides, the role of pH in Se(IV) sequestration on NZVI/CNT was lower than that on NZVI due to the buffering effect of CNT. Moreover, CNT immobilization could also weaken the inhibition effect of humic acid (HA) on the removal of Se(IV) by NZVI, since CNT showed strong adsorption for HA that blocks potential reactivity. The excellent performance of NZVI/CNT offer a promising material for detoxification of Se(IV) from wastewater. (C) 2015 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369069800015 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/25717]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Sheng, GD,Alsaedi, A,Shammakh, W,et al. Enhanced sequestration of selenite in water by nanoscale zero valent iron immobilization on carbon nanotubes by a combined batch, XPS and XAFS investigation[J]. CARBON,2016,99(-):123—130. |
| APA | Sheng, GD.,Alsaedi, A.,Shammakh, W.,Monaquel, S.,Sheng, J.,...&Huang, YY.(2016).Enhanced sequestration of selenite in water by nanoscale zero valent iron immobilization on carbon nanotubes by a combined batch, XPS and XAFS investigation.CARBON,99(-),123—130. |
| MLA | Sheng, GD,et al."Enhanced sequestration of selenite in water by nanoscale zero valent iron immobilization on carbon nanotubes by a combined batch, XPS and XAFS investigation".CARBON 99.-(2016):123—130. |
入库方式： OAI收割
来源：上海应用物理研究所
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