In situ measurement of the three-dimensional distribution of labile copper in sediment pore water using a microneedle sensor with nanoporous structure

doi:10.1016/j.jhazmat.2024.135182

	In situ measurement of the three-dimensional distribution of labile copper in sediment pore water using a microneedle sensor with nanoporous structure
	Han, Haitao1,2 ; Zhang, Yuxuan1 ; Wang, Jie 3; Liu, Ruizhi 1; Pan, Dawei2,4
发表期刊	JOURNAL OF HAZARDOUS MATERIALS
ISSN	0304-3894
	2024-09-05
卷号	476 页码:8
关键词	In situ detection Sediment pore water Copper Three-dimensional distribution Microneedle sensor
DOI	10.1016/j.jhazmat.2024.135182
通讯作者	Liu, Ruizhi([email protected]) ; Pan, Dawei([email protected])
英文摘要	Conventional ex situ analytical methods for sediment pore water are susceptible to disruptions in the speciation equilibrium of metals due to changes in external conditions. This study introduced an innovative in situ method for detecting the three-dimensional distribution of labile copper (CuLabile) in sediment pore water with high spatial resolution using a highly stable microneedle electrochemical sensor. The sensor featured a nanoporous tip structure and embedded gold nanomaterials with excellent electrocatalytic performance. The nanoporous structure could prevent the nanomaterials from falling off because of friction during the in situ detection process in sediments. The sensor exhibited good detection performance under different salinity conditions with a detection limit of 0.2 nM. Vertical and three-dimensional distributions of CuLabile in sediment pore water were successfully obtained using the in situ microneedle sensor. The results showed that the concentration of CuLabile was in the range of 5.2-43.5 nM, with a maximum value at a depth of approximately 4 cm, while there was almost no difference in the horizontal direction of a specific sediment sample column. Furthermore, this functional sensor could be extended to the in situ detection of other labile metals in sediment pore water.
资助机构	Open Research Fund of State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, Chinese Research Academy of Environmental Sciences ; Fundamental Research Funds for the Central Public -interest Scientific Institution ; Natural Scientific Foundation of Shandong Province ; National Natural Science Foundation of China ; Taishan Scholar Project of Shandong Province ; Strategic Priority Research Program of the Chinese Academy of Sciences
收录类别	SCI
语种	英语
关键词[WOS]	HEAVY-METALS ; DIFFUSIVE GRADIENTS ; BIOAVAILABILITY ; MICROELECTRODE ; SPECIATION ; TOXICITY ; SEA ; MN ; FE ; IRON
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:001270752100001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/35712
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
通讯作者	Liu, Ruizhi; Pan, Dawei
作者单位	1.Chinese Res Inst Environm Sci, State Environm Protect Key Lab Estuarine & Coastal, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong P, Yantai Inst Coastal Zone Res,Shandong Key Lab Coas, Yantai 264003, Peoples R China 3.Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Han, Haitao,Zhang, Yuxuan,Wang, Jie,et al. In situ measurement of the three-dimensional distribution of labile copper in sediment pore water using a microneedle sensor with nanoporous structure[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,476:8.
APA	Han, Haitao,Zhang, Yuxuan,Wang, Jie,Liu, Ruizhi,&Pan, Dawei.(2024).In situ measurement of the three-dimensional distribution of labile copper in sediment pore water using a microneedle sensor with nanoporous structure.JOURNAL OF HAZARDOUS MATERIALS,476,8.
MLA	Han, Haitao,et al."In situ measurement of the three-dimensional distribution of labile copper in sediment pore water using a microneedle sensor with nanoporous structure".JOURNAL OF HAZARDOUS MATERIALS 476(2024):8.