Adsorption mechanism of Pb(II) and Ni(II) from aqueous solution by TiO2 nanoparticles: kinetics, isotherms and thermodynamic studies
文献类型：期刊论文
| 作者 | Khan, Shamshad1,2; Zhang Dan1,2 ; He Haiyan1,2,3
|
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 155页码:237-249 |
| ISSN号 | 1944-3994 |
| 关键词 | Absorption Ionic strength TiO2 nanoparticles Heavy-metal ions removal |
| DOI | 10.1080/01431161.2019.1577578 |
| 通讯作者 | Zhang Dan(daniezhang@imde.ac.cn) |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | In this work, TiO 2 nanoparticles (TNPs) were used as an absorbent to remove Pb(II) and Ni(II) from aqueous solution. The effect of pH, ionic strength (IS), humic acid (HA), contact time, foreign ions and temperature on the adsorption of Pb(II) and Ni(II) onto TNPs were examined by batch technique. The results showed that the adsorption of Pb(II) and Ni(II) was dominated by outer-sphere surface complexation at pH < 6.0, whereas, inner-sphere surface complexation was the main absorption mechanism at pH > 6.0. The maximum absorption capacity of Pb(II) and Ni(II) onto TNPs calculated from a Langmuir model was 40.00 and 26.32 mg g-1, respectively at 303 K, exhibiting higher efficiency for Pb(II) absorption than Ni(II). The thermodynamic parameters (.H degrees,.S degrees and.G degrees) of Pb(II) and Ni(II) onto TNPs were calculated from the temperature dependent absorption, and their results demonstrated that absorption was endothermic and spontaneous. This analysis demonstrates that the TNPs can be utilized as an appropriate absorbent for the absorption of metal ions from solutions. |
| WOS关键词 | HEAVY-METAL IONS ; AL2O3 NANOPARTICLES ; TITANATE NANOTUBES ; EFFICIENT REMOVAL ; CHELATING RESIN ; BEHAVIOR ; ACID ; PHOTOCATALYSIS ; EQUILIBRIUM ; BIOSORPTION |
| 资助项目 | National Natural Science Foundation of China[41571315] ; CAS President's International Fellowship Initiative China[2017PCOO59] |
| WOS研究方向 | Engineering ; Water Resources |
| 语种 | 英语 |
| 出版者 | DESALINATION PUBL |
| WOS记录号 | WOS:000470121900025 |
| 资助机构 | National Natural Science Foundation of China ; CAS President's International Fellowship Initiative China |
| 源URL | [http://ir.imde.ac.cn/handle/131551/26415]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Zhang Dan |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Lab Mt Environm Divers & Control, Chengdu 610041, Sichuan, Peoples R China;; 2.Minist Water Conservancy & Power, Chengdu 610041, Sichuan, Peoples R China;; 3.Univ Chinese Acad Sci, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Khan, Shamshad,Zhang Dan,He Haiyan. Adsorption mechanism of Pb(II) and Ni(II) from aqueous solution by TiO2 nanoparticles: kinetics, isotherms and thermodynamic studies[J]. DESALINATION AND WATER TREATMENT,2019,155:237-249. |
| APA | Khan, Shamshad,Zhang Dan,&He Haiyan.(2019).Adsorption mechanism of Pb(II) and Ni(II) from aqueous solution by TiO2 nanoparticles: kinetics, isotherms and thermodynamic studies.DESALINATION AND WATER TREATMENT,155,237-249. |
| MLA | Khan, Shamshad,et al."Adsorption mechanism of Pb(II) and Ni(II) from aqueous solution by TiO2 nanoparticles: kinetics, isotherms and thermodynamic studies".DESALINATION AND WATER TREATMENT 155(2019):237-249. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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