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Yang Y, Kong L, Ding Y, Xia L, Song P. Surface-enhanced Raman scattering spectroscopy monitoring and degradation of organic pollutants using a novel nanowire. J Environ Manage 2024; 359:121045. [PMID: 38703653 DOI: 10.1016/j.jenvman.2024.121045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 04/23/2024] [Accepted: 04/28/2024] [Indexed: 05/06/2024]
Abstract
A multifunctional Ag/AlOOH nanowires (ANW) composite substrate was constructed, which not only accomplishes highly sensitive detection of organic dye molecules, but also has excellent performance in the degradation of pollutants. The ANW in the Ag/ANW substrate possesses a high aspect ratio, which extends the distribution area of Ag and enables a large number of hot spots on the active substrate. Additionally, due to the abundant OH groups on the ANW, there is an increased number of anchor sites for adsorbed metal ions in the Ag/ANW compound, thus contributing to the enhancement and degradation of molecules. Moreover, the constructed multifunctional Ag/ANW nanocomplexes also show great promise for practical applications, providing a reference for the detection and degradation of contaminants.
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Affiliation(s)
- Yanqiu Yang
- Department of Physics, Liaoning University, Shenyang, 110036, China
| | - Lingru Kong
- Department of Physics, Liaoning University, Shenyang, 110036, China
| | - Yong Ding
- Department of Physics, Liaoning University, Shenyang, 110036, China
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang, 110036, China; Yingkou Institute of Technology, Yingkou, 115014, China
| | - Peng Song
- Department of Physics, Liaoning University, Shenyang, 110036, China.
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Yang Y, Kong L, Ding Y, Xia L, Cao S, Song P. High SERS performance of functionalized carbon dots in the detection of dye contaminants. J Adv Res 2024:S2090-1232(24)00066-3. [PMID: 38341031 DOI: 10.1016/j.jare.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/27/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024] Open
Abstract
INTRODUCTION The long-term overuse of malachite green (MG) has potential carcinogenic, teratogenic, and mutagenic effects. The functional nanocomposite is novel and challenging to construct and implement through surface enhanced Raman scattering (SERS) strategy to reveal the contributions in application. OBJECTIVES The novel Ag-CDs (carbon dots)-PBA (phenyl boric acid) nanocomposite was constructed by a facile route to detect toxic MG molecule with high SERS sensitivity and good uniformity. METHODS The enhanced substrate used for the detection of MG has been successfully constructed using PBA modulated Ag-CDs on a structured surface with rich binding sites. RESULTS The fabricated Ag-CDs-PBA substrate can be used to analyze various probe molecules exhibiting high sensitivity, good signal reproducibility, and excellent stability. The mechanism between components has been proved by calculations originating from the plasmonic Ag and active electronic transmission among the bridging CDs and PBA via the close spatial π-π effect. In addition, the accelerated separation of electron-hole pairs was triggered to further improve the SERS activity of the hybrid via a bidirectional charge transfer (CT) process. Significantly, the Ag-CDs-PBA system shows distinctive selectivity, in which PBA can hinder the interference of other species without specific hydroxyl groups. CONCLUSION Based on this deeper insight on plasmon-mediated mechanism, the SERS substrate was successfully practiced for quantitative determination in real water and fish samples. The strategy developed promises to be a new sensor technology and has great potential for environmental and food safety applications.
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Affiliation(s)
- Yanqiu Yang
- Department of Physics, Liaoning University, Shenyang 110036, China
| | - Lingru Kong
- Department of Physics, Liaoning University, Shenyang 110036, China
| | - Yong Ding
- Department of Physics, Liaoning University, Shenyang 110036, China
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang 110036, China; Yingkou Institute of Technology, Yingkou 115014, China
| | - Shuo Cao
- Department of Physics, Liaoning University, Shenyang 110036, China
| | - Peng Song
- Department of Physics, Liaoning University, Shenyang 110036, China.
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Yang J, Wang T, Gao W, Zhu C, Sha P, Dong P, Wu X. The novel sandwich composite structure: a new detection strategy for the ultra-sensitive detection of cyclotrimethylenetrinitramine (RDX). Nanotechnology 2022; 33:355707. [PMID: 35580555 DOI: 10.1088/1361-6528/ac7059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
This study presents a novel sandwich composite structure that was designed for the ultra-sensitive detection of cyclotrimethylenetrinitramine (RDX). Au nanorod arrays (Au NRAs) were prepared and bound to 10-7M 6-MNA as adsorption sites for RDX, while Au nanorods (Au NRs) were modified using 10-5M 6-MNA as SERS probes. During detection, RDX molecules connect the SERS probe to the surface of the Au NRAs, forming a novel type of Au NRAs-RDX-Au NRs 'sandwich' composite structure. The electromagnetic coupling effect between Au NRs and Au NRAs is enhanced due to the molecular level of the connection spacing, resulting in new 'hot spots'. Meanwhile, Au NRAs and Au NRs have an auto-enhancement effect on 6-MNA. In addition, the presence of charge transfer in the formed 6-MNA-RDX complex induced chemical enhancement. The limits of detection of RDX evaluated by Raman spectroscopy using 6-MNA were as low as 10-12mg ml-1(4.5 × 10-15M) with good linear correlation between 10-12and 10-8mg ml-1(correlation coefficientR2 = 0.9985). This novel sandwich composite structure accurately detected RDX contamination in drinking water and on plant surfaces in an environment with detection limits as low as 10-12mg ml-1and 10-8mg ml-1.
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Affiliation(s)
- Jie Yang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Tianran Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Weiye Gao
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Chushu Zhu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Pengxing Sha
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Peitao Dong
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Xuezhong Wu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
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Yao K, Wang N, Li Z, Lu W, Wang J. Ionic Liquid-Modulated Synthesis of Porous Worm-Like Gold with Strong SERS Response and Superior Catalytic Activities. Nanomaterials (Basel) 2019; 9:E1772. [PMID: 31842430 DOI: 10.3390/nano9121772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/20/2022]
Abstract
Porous gold with well-defined shape and size have aroused extensive research enthusiasm due to their prominent properties in various applications. However, it is still a great challenge to explore a simple, green, and low-cost route to fabricate porous gold with a “clean” surface. In this work, porous worm-like Au has been easily synthesized in a one-step procedure from aqueous solution at room temperature under the action of ionic liquid tetrapropylammonium glycine ([N3333][Gly]). It is shown that the as-prepared porous worm-like Au has the length from 0.3 to 0.6 μm and the width of approximately 100–150 nm, and it is composed of lots of small nanoparticles about 6–12 nm in diameter. With rhodamine 6G (R6G) as a probe molecule, porous worm-like Au displays remarkable surface enhanced Raman scattering (SERS) sensitivity (detection limit is lower than 10−13 M), and extremely high reproducibility (average relative standard deviations is less than 2%). At the same time, owing to significantly high specific surface area, various pore sizes and plenty of crystal defects, porous worm-like Au also exhibits excellent catalytic performance in the reduction of nitroaromatics, such as p-nitrophenol and p-nitroaniline, which can be completely converted within only 100 s and 150 s, respectively. It is expected that the as-prepared porous worm-like Au with porous and self-supported structures will also present the encouraging advances in electrocatalysis, sensing, and many others.
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Ramanauskaite L, Mazeika V, Snitka V. SERS based monitoring of toluene vapors at ambient and elevated temperatures by using a ruffled silver nanolayer as a substrate. Mikrochim Acta 2018; 185:477. [PMID: 30244290 DOI: 10.1007/s00604-018-3013-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 09/18/2018] [Indexed: 02/03/2023]
Abstract
The authors describe a Surface enhanced Raman spectroscopy (SERS)-based method for the detection of gaseous toluene at different temperature regimes using 3D ruffled silver SERS substrates and a commercially available handheld Raman system equipped with a 785 nm laser. The 3D silver SERS substrates were synthesized via electroless deposition of silver on the ruffled sandpaper and HF-etched silicon wafers. The morphological characterization of the silver SERS substrates was carried out by atomic force microscopy and scanning electron microscopy. UV-Vis spectroscopy absorption spectra of the silver nanostructures showed plasmonic peaks at 522 nm and 731 nm. Toluene vapors were collected with a syringe at ambient temperature and at 100 °C, while SERS detection was always performed at room temperature. Toluene detection was based on the measurement of the Raman bands at 787 cm-1 and 1003 cm-1 (in the fingerprint region). The method allow gaseous toluene to be detected at its vapor concentrations of 522 ppm (mg/L), 261 ppm (mg/L) and 26 ppm (mg/L). Graphical abstract Schematic presentation of an original method for the detection of toluene vapors by SERS technique. The collection of toluene vapors was carried out at room and at high temperatures. The vapors were transferred to methanol by bubbling. The SERS measurements were carried out at room temperature.
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Affiliation(s)
- Lina Ramanauskaite
- Faculty of Mathematics and Natural Sciences, Research Centre for Microsystems and Nanotechnology, Kaunas University of Technology, Studentu 65, LT-51369, Kaunas, Lithuania. .,Food Institute, Chemical Laboratory, Kaunas University of Technology, Radvilenu str. 19, LT-50254, Kaunas, Lithuania.
| | - Viktoras Mazeika
- Faculty of Mathematics and Natural Sciences, Research Centre for Microsystems and Nanotechnology, Kaunas University of Technology, Studentu 65, LT-51369, Kaunas, Lithuania
| | - Valentinas Snitka
- Faculty of Mathematics and Natural Sciences, Research Centre for Microsystems and Nanotechnology, Kaunas University of Technology, Studentu 65, LT-51369, Kaunas, Lithuania
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Xu L, Huang D, Chen H, Jing X, Huang J, Odoom-Wubah T, Li Q. One-Step Synthesis of Au-Ag Nanowires through Microorganism-Mediated, CTAB-Directed Approach. Nanomaterials (Basel) 2018; 8:nano8060376. [PMID: 29843427 PMCID: PMC6027277 DOI: 10.3390/nano8060376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/15/2018] [Accepted: 05/26/2018] [Indexed: 11/16/2022]
Abstract
Synthesis and applications of one dimensional (1D) metal nanostructures have attracted much attention. However, one-step synthesis of bimetallic nanowires (NWs) has remained challenging. In this work, we developed a microorganism-mediated, hexadecyltrimethylammonium bromide (CTAB)-directed (MCD) approach to synthesize closely packed and long Au-Ag NWs with the assistance of a continuous injection pump. Characterization results confirmed that the branched Au-Ag alloy NWs was polycrystalline. And the Au-Ag NWs exhibited a strong absorbance at around 1950 nm in the near-infrared (NIR) region, which can find potential application in NIR absorption. In addition, the Au-Ag NWs showed excellent surface-enhanced Raman scattering (SERS) enhancement when 4-mercaptobenzoic acid (MBA) and rhodamine 6G (R6G) were used as probe molecules.
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Affiliation(s)
- Luhang Xu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
| | - Dengpo Huang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
| | - Huimei Chen
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
| | - Xiaoling Jing
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
| | - Jiale Huang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
| | - Tareque Odoom-Wubah
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
- Department of Chemistry, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
| | - Qingbiao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China.
- College of Chemical Engineering and Material Science, Quanzhou Normal University, Quanzhou 362002, China.
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