Colorimetric determination of Hg2+ based on the mercury-stimulated oxidase mimetic activity of Ag3PO4 microcubes

doi:10.1007/s00604-020-04399-0

	Colorimetric determination of Hg2+ based on the mercury-stimulated oxidase mimetic activity of Ag3PO4 microcubes
	Zhang, Yu1 ; Ju, Peng1,2,3 ; Sun, Liping 4; Wang, Zhe 1,5; Zhai, Xiaofan 3,6; Jiang, Fenghua 1; Sun, Chengjun 1,7
	2020-07-02
发表期刊	MICROCHIMICA ACTA
ISSN	0026-3672
卷号	187 期号:7 页码:14
通讯作者	Ju, Peng(jupeng@fio.org.cn) ; Sun, Chengjun(csun@fio.org.cn)
摘要	Four kinds of Ag3PO4 materials were prepared by controlling the experimental conditions, which were developed as oxidase mimics. Experimental results showed that different synthesis methods led to distinct crystal structures, morphologies, and surface properties, which contributed to diverse oxidase-like activities of Ag3PO4 materials. Among them, Ag3PO4 microcubes (APMCs) can efficiently catalyze the oxidation of colorless 3,3,5,5-tetramethylbenzidine in the presence of dissolved oxygen to form a blue-colored oxide, presenting the best intrinsic oxidase mimetic ability. The higher-energy [110] facets with more oxygen vacancies exposed and more active sites coupled with more negative charge and larger specific surface area of APMCs contributed to its enhanced oxidase mimetic performance. Besides, mercury ions were proved to remarkably and selectively stimulate the oxidase-like ability of APMCs owing to the formation of Ag-Hg amalgam on its surface. Based on the stimulating effect of Hg2+ towards APMCs, a simple and rapid method for colorimetric determination of Hg2+ was thus established via the significant signal amplification and megascopic color variation. Under the optimal conditions, the sensing system showed a good linear relationship ranging from 0.1 to 7.0 mu M and a detection limit of 20 nM for Hg2+, exhibiting high selectivity and good colour stability. Moreover, the colorimetric method was successfully applied to determine Hg2+ in real water samples. Considering these advantages, the developed colorimetric sensing system is expected to hold bright prospects for trace determination of Hg2+ in biological, environmental, and food samples.p id="Par The preparation process of Ag3PO4 materials and Hg2+-stimulated enhanced oxidase-like ability of Ag3PO4 microcubes in catalyzing the oxidation of TMB to generate a typical blue color, which can be applied in rapid and ultrasensitive detection of Hg2+ visually.
关键词	Ag3PO4 Microcubes Oxidase mimics Colorimetric detection Hg2+
DOI	10.1007/s00604-020-04399-0
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51702328] ; National Natural Science Foundation of China[41706080] ; Basic Scientific Fund for National Public Research Institutes of China[2019Y03] ; Basic Scientific Fund for National Public Research Institutes of China[2020S02] ; Shandong Provincial Natural Science Foundation[ZR2017BD002] ; Key Research and Development Program of Shandong Province[2018GHY115029] ; CAS Light of West China Program, Open Fund of Shandong Key Laboratory of Corrosion Science[KLCS201906] ; Open Fund of Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao)[LMEES201802] ; Open Foundation of Pilot National Laboratory for Marine Science and Technology (Qingdao)[QNLM2016ORP0410] ; Aoshan Scientific and Technological Innovation Project - Pilot National Laboratory for Marine Science and Technology (Qingdao)[2016ASKJ14]
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
WOS记录号	WOS:000548971900003
出版者	SPRINGER WIEN
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/167934
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Ju, Peng; Sun, Chengjun
作者单位	1.Minist Nat Resources MNR, Inst Oceanog 1, Key Lab Marine Ecoenvironm Sci & Technol, Marine Bioresource & Environm Res Ctr, 6 Xianxialing Rd, Qingdao 266061, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, 1 Wenhai Rd, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Shandong Key Lab Corros Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Wenzhou Med Univ, Sch Lab Med & Life Sci, Wenzhou 325035, Peoples R China 5.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, 238 Songling Rd, Qingdao 266100, Peoples R China 6.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 7.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Dugs & Bioprod, 1 Wenhai Rd, Qingdao 266237, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhang, Yu,Ju, Peng,Sun, Liping,et al. Colorimetric determination of Hg2+ based on the mercury-stimulated oxidase mimetic activity of Ag3PO4 microcubes[J]. MICROCHIMICA ACTA,2020,187(7):14.
APA	Zhang, Yu.,Ju, Peng.,Sun, Liping.,Wang, Zhe.,Zhai, Xiaofan.,...&Sun, Chengjun.(2020).Colorimetric determination of Hg2+ based on the mercury-stimulated oxidase mimetic activity of Ag3PO4 microcubes.MICROCHIMICA ACTA,187(7),14.
MLA	Zhang, Yu,et al."Colorimetric determination of Hg2+ based on the mercury-stimulated oxidase mimetic activity of Ag3PO4 microcubes".MICROCHIMICA ACTA 187.7(2020):14.

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