MoS2-Nanosheet-Assisted Coordination of Metal Ions with Porphyrin for Rapid Detection and Removal of Cadmium Ions in Aqueous Media

doi:10.1021/acsami.7b04185

	MoS2-Nanosheet-Assisted Coordination of Metal Ions with Porphyrin for Rapid Detection and Removal of Cadmium Ions in Aqueous Media
	Gu ZJ(谷战军); Yin WY(尹文艳); Dong XH(董兴华); Yu J(余杰); Pan J(潘俊); Yao ZY(姚志轶); Zhao YL(赵宇亮); Yin, WY; Dong, XH; Yu, J
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017
卷号	9 期号:25 页码:21362-21370
关键词	MoS2 nanosheets optical detection porphyrin self-assembly theoretical calculation
ISSN号	1944-8244
DOI	10.1021/acsami.7b04185
文献子类	Article
英文摘要	Molybdenum disulfide (MoS2) is a two-dimensional (2D) graphene-like material that is gaining great attention because of its potential application in various fields. Here, we reported a self-assembled nanocomposite consisted of MoS2 nanosheets and 5,10,15,20-tetrakis(1-methyl-4-pyridinio)porphyrintetra(p-toluenesulfonate) (TMPyP), named MoS2@TMPyP. This nanocomposite can be used as a sensing probe for low cost, rapid, selective detection of cadmium (Cd2+) ions. It is found that a new Soret band at 442 nm in UVvis absorption spectra represented the coordination of Cd2+ ions into TMPyP of the MoS2@TMPyP. The coordination rates between TMPyP and Cd2+ ions is greatly accelerated from 72 h to 20 min with the assistance of MoS2, which is 200 times faster than in the absence of MoS2. The limit of detection (LOD) of the Cd2+ is as low as 7.2 x 10(8) mol/L. The binding behavior between the cationic TMPyP and MoS2 nanosheets was corroborated by molecular dynamics simulation and various control experiments. The results demonstrated that electrostatic interaction was the main force for driving TMPyP enriching around the MoS2 surface, resulting in an accelerated complexation of Cd2+ and TMPyP. Moreover, MoS2@TMPyP nanocomposite can also be used for removing of Cd2+ in water. The removal efficiency (RF) of the MoS2@TMPyP can reach to 91% for high concentrations of Cd2+. This work provides a new insight into detection and removal of Cd2+ ions in water.
WOS关键词	CHEMICALLY EXFOLIATED MOS2 ; MOLECULAR-DYNAMICS ; DRUG-DELIVERY ; NANOSHEETS ; NANOPARTICLES ; MERCURY ; CANCER ; SYSTEMS ; SENSORS ; FORCE
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
WOS记录号	WOS:000404807200037
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284978]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Gu ZJ,Yin WY,Dong XH,et al. MoS2-Nanosheet-Assisted Coordination of Metal Ions with Porphyrin for Rapid Detection and Removal of Cadmium Ions in Aqueous Media[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(25):21362-21370.
APA	谷战军.,尹文艳.,董兴华.,余杰.,潘俊.,...&Zhao, YL.(2017).MoS2-Nanosheet-Assisted Coordination of Metal Ions with Porphyrin for Rapid Detection and Removal of Cadmium Ions in Aqueous Media.ACS APPLIED MATERIALS & INTERFACES,9(25),21362-21370.
MLA	谷战军,et al."MoS2-Nanosheet-Assisted Coordination of Metal Ions with Porphyrin for Rapid Detection and Removal of Cadmium Ions in Aqueous Media".ACS APPLIED MATERIALS & INTERFACES 9.25(2017):21362-21370.