首页|In situ plasmonic & electrochemical fiber-optic sensor for multi-metal-ions detection

In situ plasmonic & electrochemical fiber-optic sensor for multi-metal-ions detection

扫码查看
原文链接
  • 万方数据
High precision and high throughput detection of heavy metal ions is essential for water quality monitoring and assessment.Herein,we propose a plasmonic & electrochemical dual-mode fiber sensing probe for label-free and real-time detection of multiple ions(Pb2+and Cu2+as examples).This sensor comprises a multimode fiber-single mode fiber reflection probe,the outer surface of which is coated with a gold nanofilm to excite the surface plasmon resonance(SPR)optically and simultaneously serves as an electrochemical working electrode.In traditional electrochemical detection,the enrichment of ions cannot be detected in real-time.However,by utilizing the plasmonic & electrochemical dual-mode detection method,various kinds of metal ions can be deposited onto the gold nanofilm and selectively oxidized during forward potential scanning,and the entire electrochemical process can be monitored by SPR measurement.We experimentally demonstrate that the sensor can simultaneously detect Pb2+and Cu2+in a mixed solution in real-time,providing a linear response over the ion concentration range from 10-12 to 10-7 M and offering an excellent detection limit(1.69× 10-14-5.49× 10-13 M).The proposed dual-mode fiber sensor has the benefits of remote sensing,compact footprint,and cost-effectiveness and shows excellent potential for water quality risk management in difficult-to-reach environments.

optical fiber sensorsurface plasmon resonanceelectrochemical measurementions detectionwater pollution

Xiaoling PENG、Zhiyong YANG、Bo PENG、Zhi LI、Zhicong REN、Xicheng WANG、Jiahai LI、Zhencheng LI、Liang CHEN、Daotong YOU、Kaiwei LI、Jianqing LI、Tuan GUO

展开 >

Institute of Photonics Technology,Jinan University,Guangzhou 511443,China

School of Computer Science and Engineering,Macau University of Science and Technology,Macao 999078,China

Institute for Environmental and Climate Research,Jinan University,Guangzhou 511443,China

Key Laboratory of Bionic Engineering of Ministry of Education,Jilin University,Changchun 130022,China

展开 >

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaGuangdong Outstanding Scientific Innovation FoundationProgram of Marine Economy Development Special Fund under Department of Natural Resources of Guangdong ProvinceLocal Innovative and Research Teams Project of Guangdong Pearl River Talents ProgramResearch Fund of Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic TechnologyProject of Scientific and Technological Development Plan of Jilin ProvinceOpen Fund of Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communication Technology

620350066197506862005101618278192019TX05X383GDNRC[2023]232019BT02X1052020B121203001020220508130RC

2024

10.1007/s11432-023-3746-8

中国科学:信息科学(英文版)
中国科学院

中国科学:信息科学(英文版)

CSTPCDEI
影响因子：0.715
ISSN：1674-733X
年,卷(期)：2024.67(1)
  • 38