Enhanced oxidase-like activity of Ag@Ag2WO4 nanorods for colorimetric detection of Hg2+

doi:10.1016/j.colsurfa.2020.125203

	Enhanced oxidase-like activity of Ag@Ag2WO4 nanorods for colorimetric detection of Hg2+
	Ju, Peng1,2,3 ; Wang, Zhe 1,4; Zhang, Yu1 ; Zhai, Xiaofan 3; Jiang, Fenghua 1; Sun, Chengjun 1,5; Han, Xiuxun 6
	2020-10-20
发表期刊	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN	0927-7757
卷号	603 页码:12
通讯作者	Sun, Chengjun(csun@fio.org.cn) ; Han, Xiuxun(xxhan@licp.cas.cn)
摘要	In this paper, four kinds of Ag2WO4 materials were synthesized via facile hydrothermal methods, which were developed as highly efficient biomimetic catalysts for the first time. These Ag2WO4 materials exhibited distinct oxidase-like activities owing to their different crystal structures, morphologies and surface properties. Among them, Ag@Ag2WO4 nanorods (AWNRs-9) exhibited the best intrinsic oxidase mimetic performance, which were composed of Ag nanoparticles (NPs) loading on the surface of Ag2WO4 nanorods (NRs). It is found that the introduction of Ag NPs can significantly enhanced the oxidase-like catalytic activity due to the synergistic effect between Ag NPs and Ag2WO4 NRs. In addition, the catalytic oxidation reaction of 3,3',5,5'-tetramethylbenzidine by AWNRs-9 was dramatically and selectively enhanced due to the mercury-stimulated effect. Thus, a simple, rapid and sensitive method for colorimetric detection of Hg2+ was developed, displaying a good linear response in the range of 0.25 mu M to 8.0 mu M with a detection limit of 1.6 nM. This assay method also showed a high selectivity, good stability and favorable practicability. It was successfully applied to the detection of Hg2+ in real water samples. This sensing system is expected to hold bright prospects for quantitative detection of Hg2+ in biological, environmental, and food fields.
关键词	Ag2WO4 Nanorods Oxidase mimics Colorimetric detection Hg2+
DOI	10.1016/j.colsurfa.2020.125203
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] ; 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]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000571933200004
出版者	ELSEVIER
引用统计	被引频次：17[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/337002/168914
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Sun, Chengjun; Han, Xiuxun
作者单位	1.Minist Nat Resources MNR, Inst Oceanog 1, Marine Bioresource & Environm Res Ctr, Key Lab Marine Ecoenvironm Sci & Technol, 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.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, 238 Songling Rd, Qingdao 266100, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Drugs & Bioprod, 1 Wenhai Rd, Qingdao 266237, Peoples R China 6.Jiangxi Univ Sci & Technol, Inst Semicond Mat, 86 Hongqi Rd, Ganzhou 341000, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Ju, Peng,Wang, Zhe,Zhang, Yu,et al. Enhanced oxidase-like activity of Ag@Ag2WO4 nanorods for colorimetric detection of Hg2+[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2020,603:12.
APA	Ju, Peng.,Wang, Zhe.,Zhang, Yu.,Zhai, Xiaofan.,Jiang, Fenghua.,...&Han, Xiuxun.(2020).Enhanced oxidase-like activity of Ag@Ag2WO4 nanorods for colorimetric detection of Hg2+.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,603,12.
MLA	Ju, Peng,et al."Enhanced oxidase-like activity of Ag@Ag2WO4 nanorods for colorimetric detection of Hg2+".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 603(2020):12.

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