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Wang X, Cong Q, Feng C, Sun Z, Cai Z, Fan C, Pei L. Terbium Vanadate Nanowires-Based Electrochemical Sensors for Mercury Ions. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04882-x. [PMID: 38376741 DOI: 10.1007/s12010-024-04882-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 02/21/2024]
Abstract
Terbium vanadate nanowires were synthesized via a facile chemical approach using sodium vanadate and terbium chloride. Morphology, structure, composition, and electrochemical characteristics of the terbium vanadate nanowires were investigated by different techniques. Terbium vanadate nanowires with single crystalline tetragonal TbVO4 phase possess smooth surface and flat tips. The length of the nanowires is longer than 5 μm, and diameter is 40-100 nm. Terbium vanadate nanowires modified electrode was used for trace-level mercury ions (Hg2+) detection. One well-defined stripping peak exists at - 0.34 V at the terbium vanadate nanowires modified electrode in 0.1 mM Hg2+ solution. Buffer solution pH value, deposition time, deposition potential, and standing time are pH = 1, 150 s, - 1.5 V, and 60 s, respectively. Detection limit for Hg2+ detection is 0.18 nM, and linear range is 0.01-100 μM. The proposed terbium vanadate nanowires modified electrode exhibits significant selectivity, stability, and reproducibility toward Hg2+. The usefulness of the developed sensor based on the terbium vanadate nanowires modified electrode was verified by Hg2+ detection in real samples.
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Affiliation(s)
- Xiaoyu Wang
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China
| | - Qianming Cong
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China
| | - Chenxu Feng
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China
| | - Zizhan Sun
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China
| | - Zhengyu Cai
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China.
| | - Chuangang Fan
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China
| | - Lizhai Pei
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, People's Republic of China.
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Zaeifi F, Sedaghati F, Samari F. A new electrochemical sensor based on green synthesized CuO nanostructures modified carbon ionic liquid electrode for electrocatalytic oxidation and monitoring of l-cysteine. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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