A rapid way to synthesize magnesium whitlockite microspheres for high efficiency removing heavy metals
文献类型：期刊论文
| 作者 | Lin, Chucheng; Wang, Yueyue; Zhou, Yang; Zeng, Yi |
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 162页码:220 |
| 关键词 | Magnesium whitlockite Heavy metals Selective adsorption Water pollution |
| ISSN号 | 1944-3994 |
| DOI | 10.5004/dwt.2019.24290 |
| 文献子类 | Article |
| 英文摘要 | Magnesium whitlockite has been widely applied in many fields, such as protein adsorption and drug delivery. However, the application of MWH in heavy metal adsorption has not been reported yet. To obtain the adsorbents with high adsorption capacity, we developed a rapid way to synthesize magnesium whitlockite microspheres with nano-pores by microwave hydrothermal method using the adenosine 5'-triphosphate disodium salt hydrate as a phosphorus source. The effects of the reaction time and temperature on the composition and morphology of magnesium whitlockite were investigated. Heavy metal removal ability of the prepared magnesium whitlockite at different adsorption time and initial Pb2+ concentration was studied. The results showed that the reaction temperature and time did not have an obvious effect on the microstructure of the prepared MWH. They were about 300 nm in diameter with rough surfaces. Adsorption studies showed that Pb2+ ions could be adsorbed remarkably and efficiently by the prepared MWH. The adsorption equilibrium of MWH in Pb2+ solution (200 mg L-1) could be reached in 5 min. The adsorption kinetic study showed that it obeyed the pseudo-second-order kinetic model and the Langmuir isotherm model. The experimental maximum adsorption capacity of the prepared MWH was 2311 mg L-1. Furthermore, the remove percentage of Cd2+, Cu2+ and Pb2+ ions by the MWH in a mixed solution containing these metal ions were 22.3%, 21.2%, and 86.4%, respectively, indicating that the prepared MWH had an ability to electively adsorb Pb2+ ions in Cd2+, Cu2+, and Pb2+-containing solution. Therefore, the prepared magnesium whitlockite is a promising adsorbent for being used in the treatment of water pollution. |
| WOS研究方向 | Engineering ; Water Resources |
| 语种 | 英语 |
| 出版者 | DESALINATION PUBL |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26874]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Lin, Chucheng,Wang, Yueyue,Zhou, Yang,et al. A rapid way to synthesize magnesium whitlockite microspheres for high efficiency removing heavy metals[J]. DESALINATION AND WATER TREATMENT,2019,162:220. |
| APA | Lin, Chucheng,Wang, Yueyue,Zhou, Yang,&Zeng, Yi.(2019).A rapid way to synthesize magnesium whitlockite microspheres for high efficiency removing heavy metals.DESALINATION AND WATER TREATMENT,162,220. |
| MLA | Lin, Chucheng,et al."A rapid way to synthesize magnesium whitlockite microspheres for high efficiency removing heavy metals".DESALINATION AND WATER TREATMENT 162(2019):220. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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