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| Macroscopic and spectroscopic exploration on the removal performance of titanate nanotubes towards Zn(II) | |
| Linghu, WS; Sun, YX; Yang, H; Chang, KK; Sheng, GD; Hayat, T; Alharbi, NS; Ma, JY | |
| 2017 | |
| Source Publication | JOURNAL OF MOLECULAR LIQUIDS
 |
| ISSN | 0167-7322 |
| Volume | 244Issue:-Pages:146-153 |
| Subtype | 期刊论文 |
| Abstract | In the present study, titanate nanotubes (denoted as TNTs) synthesized through a simple hydrothermal approach was applied for the decontamination of Zn(II) from aqueous solution. Batch experimental results showed that the removal kinetics process was fast and reached equilibrium after 60 min. The sorption of Zn(II) on TNTs was strongly dependent on pH and ionic strength at pH <6.0, while independent of ionic strength at pH >6.0. Based on Langmuir model fit, the maximum sorption capacity of Zn(II) at pH 5.5 and 293 K was calculated to be 139.44 mg/g, being higher than a series of currently reported adsorbents. TNTs also exhibited a favorable recycling performance for the removal of Zn(II). According to the desorption experiments, surface complexation modeling, X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) analysis, cation exchange and/or outer-sphere surface complexation were the predominant removal mechanisms of Zn(II) at lower pH, while inner-sphere surface complexation and/or precipitation were the main driving forces at higher pH. The experimental findings herein demonstrated the application potentiality of TNTs for the highly efficient treatment of Zn(II)-bearing wastewaters. (C) 2017 Elsevier B.V. All rights reserved. |
| Keyword | Aqueous-solution Competitive Adsorption Hydrothermal Method Selective Removal Oxide Composite Ionic-strength High-efficient Zinc Sorption Adsorbent Equilibrium |
| DOI | 10.1016/j.molliq.2017.08.126 |
| Indexed By | SCI |
| WOS Keyword | AQUEOUS-SOLUTION ; COMPETITIVE ADSORPTION ; HYDROTHERMAL METHOD ; SELECTIVE REMOVAL ; OXIDE COMPOSITE ; IONIC-STRENGTH ; HIGH-EFFICIENT ; ZINC SORPTION ; ADSORBENT ; EQUILIBRIUM |
| Language | 英语 |
| WOS ID | WOS:000413391000018 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/28722 |
| Collection | 中科院上海应用物理研究所2011-2019年 |
| Recommended Citation GB/T 7714 | Linghu, WS,Sun, YX,Yang, H,et al. Macroscopic and spectroscopic exploration on the removal performance of titanate nanotubes towards Zn(II)[J]. JOURNAL OF MOLECULAR LIQUIDS,2017,244(-):146-153. |
| APA | Linghu, WS.,Sun, YX.,Yang, H.,Chang, KK.,Sheng, GD.,...&Ma, JY.(2017).Macroscopic and spectroscopic exploration on the removal performance of titanate nanotubes towards Zn(II).JOURNAL OF MOLECULAR LIQUIDS,244(-),146-153. |
| MLA | Linghu, WS,et al."Macroscopic and spectroscopic exploration on the removal performance of titanate nanotubes towards Zn(II)".JOURNAL OF MOLECULAR LIQUIDS 244.-(2017):146-153. |
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| Macroscopic and spec（1318KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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