Highly efficient recovery of Zn2+/Cu2+from water by using hydrotalcite as crystal seeds
文献类型：期刊论文
| 作者 | Laipan, Minwang6; Zhang, Min6; Wang, Ziyu6; Zhu, Runliang3,4,5 ; Sun, Luyi1,2
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2024-03-01 |
| 卷号 | 914页码:13 |
| 关键词 | Heavy metal Recovery Crystal seed Inductive effect Layered double hydroxide |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.169954 |
| 英文摘要 | The efficient and waste-free recovery of heavy metals is critical for heavy metal wastewater treatment. In this work, we explored how heavy metals can be recovered as valuable chemicals in the presence of crystal seeds. Hydrotalcite (one kind of layered double hydroxides (LDHs)) was used as crystal seeds to recover Zn2+ in the presence of Al3+ from water (i.e., seed-Zn2+-Al3+ system), which was compared with the monometallic heterogeneous system (seed-Zn2+) and direct coprecipitation (Zn2+-Al3+) system. Our results demonstrated that the seed-Zn2+-Al3+ system possessed a recovery rate of 2.6-2.8 times and a recovery kinetic rate of 2.7-5.9 times higher than those of the other two systems. Differing from the latter two systems, hydrotalcite seeds could induce Zn2+ and Al3+ to form ZnAl-LDH in seed-Zn2+-Al3+. Interestingly, the ZnAl-LDH presents a compositional divalent/trivalent cation molar ratio of ca. 3, which is comparable with the value in the hydrotalcite. It was demonstrated that the hydrotalcite seeds could act as a template to significantly induce the formation of ZnAlLDH complying with the seed's structure and compositional ratio. Similar induction effect of seeds as the Zn2+ system was further verified in Cu2+ systems. This work provides a novel strategy for efficient recovery of heavy metals with product selectivity. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001166639900001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77388]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Laipan, Minwang; Zhu, Runliang; Sun, Luyi |
| 作者单位 | 1.Univ Connecticut, Inst Mat Sci, Polymer Program, Storrs, CT 06269 USA 2.Univ Connecticut, Dept Chem & Biomol Engn, Storrs, CT 06269 USA 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 6.Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Laipan, Minwang,Zhang, Min,Wang, Ziyu,et al. Highly efficient recovery of Zn2+/Cu2+from water by using hydrotalcite as crystal seeds[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,914:13. |
| APA | Laipan, Minwang,Zhang, Min,Wang, Ziyu,Zhu, Runliang,&Sun, Luyi.(2024).Highly efficient recovery of Zn2+/Cu2+from water by using hydrotalcite as crystal seeds.SCIENCE OF THE TOTAL ENVIRONMENT,914,13. |
| MLA | Laipan, Minwang,et al."Highly efficient recovery of Zn2+/Cu2+from water by using hydrotalcite as crystal seeds".SCIENCE OF THE TOTAL ENVIRONMENT 914(2024):13. |
入库方式： OAI收割
来源：广州地球化学研究所
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