Strong adsorption of arsenic species by amorphous zirconium oxide nanoparticles
文献类型：期刊论文
| 作者 | H. Cui ; Q. Li ; S. A. Gao ; J. K. Shang |
| 刊名 | Journal of Industrial and Engineering Chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 18期号:4页码:1418-1427 |
| 关键词 | As(III) and As(V) removal Amorphous ZrO2 nanoparticles Adsorption Inner-sphere complex mechanism nanocrystalline titanium-dioxide aqueous-solution removal sorption groundwater adsorbent water hydroxide mechanism as(iii) |
| ISSN号 | 1226-086X |
| 中文摘要 | A novel oxide adsorbent of amorphous zirconium oxide (am-ZrO2) nanoparticles was synthesized by a simple hydrothermal process for effective arsenic removal from aqueous environment. Due to their high specific surface area (327.1 m(2)/g), large mesopore volume (0.68 cm(3)/g), and the presence of high affinity surface hydroxyl groups, am-ZrO2 nanoparticles demonstrated exceptional adsorption performance on both As(III) (arsenite) and As(V) (arsenate) without pre-treatment at near neutral condition. At pH 7, the adsorption kinetic is fast and the adsorption capacity is high (over 83 mg/g for As(III) and over 32.4 mg/g for As(V), respectively). Under low equilibrium arsenic concentrations (C-e at 0.01 mg/L, the maximum contaminant level (MCL) for arsenic in drinking water), the amount of arsenic adsorbed by am-ZrO2 nanoparticles is over 0.92 mg/g for As(III) and over 5.2 mg/g for As(V), respectively. The adsorption mechanism of arsenic species onto am-ZrO2 nanoparticles was found to follow the inner-sphere complex mechanism. Testing with arsenic contaminated natural lake water confirmed the effectiveness of these am-ZrO2 nanoparticles in removing arsenic from natural water. The immobilized am-ZrO2 nanoparticles on glass fiber cloth demonstrated an even better arsenic removal performance than dispersed am-ZrO2 nanoparticles in water, paving the way for their potential applications in water treatment facility to treat arsenic contaminated water body without pre-treatment. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/59919]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. Cui,Q. Li,S. A. Gao,et al. Strong adsorption of arsenic species by amorphous zirconium oxide nanoparticles[J]. Journal of Industrial and Engineering Chemistry,2012,18(4):1418-1427. |
| APA | H. Cui,Q. Li,S. A. Gao,&J. K. Shang.(2012).Strong adsorption of arsenic species by amorphous zirconium oxide nanoparticles.Journal of Industrial and Engineering Chemistry,18(4),1418-1427. |
| MLA | H. Cui,et al."Strong adsorption of arsenic species by amorphous zirconium oxide nanoparticles".Journal of Industrial and Engineering Chemistry 18.4(2012):1418-1427. |
入库方式： OAI收割
来源：金属研究所
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