Site-specific surface tailoring for metal ion selectivity via under-coordinated structure engineering | |
Zhang, Gong; Liu, Chunlei; Lan, Huachun; Liu, Huijuan; Qu, Jiuhui; Yu, Li | |
刊名 | NANOSCALE HORIZONS |
2018-11-01 | |
卷号 | 3期号:6页码:632-639 |
ISSN号 | 2055-6756 |
文献子类 | Article |
英文摘要 | Coordinatively unsaturated atoms play an important role in structural and electronic tuning, while their effects on surface site tailoring for selective adsorption have not been well explored. We demonstrate a new concept based on elaborate tuning of the chemical states of lattice atoms to control the accessibility of different surface sites. The under-coordinated manganese structure developed herein not only benefits the formation of hydroxylated lateral edge sites for preferential complexation of lead (Pb) ions, but also favors a decrease in the proportions of metal-ion-nonspecific octahedral vacancy sites. On the basis of this strategy, a common core-shell structure was devised to further assemble highly exposed edge sites, achieving high selectivity coefficients (31.2-172.0) for Pb(II) against various metal cations. Even when these metal cations coexist at higher concentrations, the general specificity is still maintained, with further pH-enabled switchable sorption-desorption for adsorbent recyclability. Different from frequently reported specific ligand-induced selective systems, intrinsic structure modification as described herein will lead to a new paradigm for surface site tailoring that enables a versatile and tunable platform in environmental remediation, resource recovery and analyte sensing. |
内容类型 | 期刊论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/41181] |
专题 | 生态环境研究中心_环境水质学国家重点实验室 |
推荐引用方式 GB/T 7714 | Zhang, Gong,Liu, Chunlei,Lan, Huachun,et al. Site-specific surface tailoring for metal ion selectivity via under-coordinated structure engineering[J]. NANOSCALE HORIZONS,2018,3(6):632-639. |
APA | Zhang, Gong,Liu, Chunlei,Lan, Huachun,Liu, Huijuan,Qu, Jiuhui,&Yu, Li.(2018).Site-specific surface tailoring for metal ion selectivity via under-coordinated structure engineering.NANOSCALE HORIZONS,3(6),632-639. |
MLA | Zhang, Gong,et al."Site-specific surface tailoring for metal ion selectivity via under-coordinated structure engineering".NANOSCALE HORIZONS 3.6(2018):632-639. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论