Thiolated poly(aspartic acid)-functionalized two-dimensional MoS2, chitosan and bismuth film as a sensor platform for cadmium ion detection

doi:10.1039/d0ra06197b

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Thiolated poly(aspartic acid)-functionalized two-dimensional MoS2, chitosan and bismuth film as a sensor platform for cadmium ion detection
	Cao, Qiang; Xiao, Yushi; Huang, Rong; Liu, Na; Chi, Hai; Lin, Cheng-Te; Huang, Chi-Hsien; Han, Gang; Wu, Lidong
刊名	RSC ADVANCES
	2020
卷号	10 期号:62 页码:37989-37994
关键词	FIELD-EFFECT TRANSISTORS VOLTAMMETRIC DETERMINATION STRIPPING VOLTAMMETRY LEAD TOXICITY GRAPHENE COPPER WATER ZINC CHROMATOGRAPHY
DOI	10.1039/d0ra06197b
英文摘要	In this work, a sensitive electrochemical platform for determination of cadmium ions (Cd2+) is obtained using thiolated poly(aspartic acid) (TPA)-functionalized MoS2 as a sensor platform by differential pulse anodic stripping voltammetry (DPASV). The performance of the TPA-MoS2-modified sensor is systemically studied. It demonstrates that the TPA-MoS2 nanocomposite modified sensor exhibits superior analytical performance for Cd2+ over a linear range from 0.5 mu g L-1 to 50 mu g L-1, with a detection limit of 0.17 mu g L-1. Chitosan is able to form a continuous coating film on the surface of the GC electrode. The good sensing performance of the TPA-MoS2-modified sensor may be attributed to the following factors: the large surface area of MoS2 (603 m(2) g(-1)), and the abundant thiol groups of TPA. Thus, the TPA-MoS2-modified sensor proves to be a reliable and environmentally friendly tool for the effective monitoring of Cd2+ existing in aquacultural environments.
学科主题	Chemistry
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20412]
专题	2020专题
作者单位	Wu, LD (corresponding author), Chinese Acad Fishery Sci, Key Lab Control Qual & Safety Aquat Prod, Beijing 100141, Peoples R China.
推荐引用方式 GB/T 7714	Cao, Qiang,Xiao, Yushi,Huang, Rong,et al. Thiolated poly(aspartic acid)-functionalized two-dimensional MoS2, chitosan and bismuth film as a sensor platform for cadmium ion detection[J]. RSC ADVANCES,2020,10(62):37989-37994.
APA	Cao, Qiang.,Xiao, Yushi.,Huang, Rong.,Liu, Na.,Chi, Hai.,...&Wu, Lidong.(2020).Thiolated poly(aspartic acid)-functionalized two-dimensional MoS2, chitosan and bismuth film as a sensor platform for cadmium ion detection.RSC ADVANCES,10(62),37989-37994.
MLA	Cao, Qiang,et al."Thiolated poly(aspartic acid)-functionalized two-dimensional MoS2, chitosan and bismuth film as a sensor platform for cadmium ion detection".RSC ADVANCES 10.62(2020):37989-37994.