Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution
文献类型：期刊论文
| 作者 | Khan, Shamshad1,2; Zhang Dan1,2 ; Yang Mengling1,2,3; Yang Yang4; He Haiyan1,2,3; Jiang Hao1,2
|
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 100页码:193-203 |
| 关键词 | TiO2 nanoparticles Surface modification Cadmium Adsorption capacity |
| ISSN号 | 1944-3994 |
| DOI | 10.5004/dwt.2017.21802 |
| 英文摘要 | In this study, removal of Cd from aqueous media by the adsorption of TiO2 nanoparticles (TNPs), with surface modification by humic acid (HA) was assessed. Results showed a linear increase of the coating percentage from 100-HA to 250-HA but no significant difference between the HA coated TNPs prepared at 250 and 350 mg L-1 due to an extremely narrow band gap. The obtained materials (HA-TNPs) were characterized by Fourier transform infrared spectroscopy and UV-visible spectrophotometer. Then, batch adsorption techniques were carried out to examine the possible adsorption mechanisms of Cd onto TNPs and HA-TNPs. It was noted that the adsorption capacity of the HATNPs for Cd enhanced considerably as compared to that of the bare TNPs, implying that HA coating might modify bioavailability of Cd in aquatic environment. Equilibrium data were best described by the Freundlich equation, and the partition distribution coefficient (k) of HA-TNPs increased by 34%, 50% and 59% for Cd at 298, 315 and 332 K respectively, as compared to the bare TNPs, suggesting that HA-TNPs had a stronger affinity of sites for Cd adsorption than that of bare TNPs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000425243300021 |
| 出版者 | DESALINATION PUBL |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20911]  |
| 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, Key Lab Mt Environm Divers & Control, Chengdu 610041, Peoples R China 2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100081, Peoples R China 4.Sichuan Tobacco Co, Yibin Branch Co, Yibin 644000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Khan, Shamshad,Zhang Dan,Yang Mengling,et al. Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution[J]. DESALINATION AND WATER TREATMENT,2017,100:193-203. |
| APA | Khan, Shamshad,Zhang Dan,Yang Mengling,Yang Yang,He Haiyan,&Jiang Hao.(2017).Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution.DESALINATION AND WATER TREATMENT,100,193-203. |
| MLA | Khan, Shamshad,et al."Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution".DESALINATION AND WATER TREATMENT 100(2017):193-203. |
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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