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Liu G, Xu G. Facile preparation of conductive carbon-based membranes on dielectric substrates. Front Chem 2023; 11:1152947. [PMID: 37056354 PMCID: PMC10086138 DOI: 10.3389/fchem.2023.1152947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 03/07/2023] [Indexed: 03/30/2023] Open
Abstract
Graphene has attracted much research attention due to its outstanding chemical and physical properties, such as its excellent electronic conductivity, making it as a useful carbon material for a variety of application fields of photoelectric functional devices. Herein, a new method for synthesizing conductive carbon membranes on dielectric substrates via a low-temperature thermodynamic driven process is developed. Although the obtained films exhibit low crystallinity, their electrical, wetting, and optical properties are acceptable in practice, which opens up a new avenue for the growth of carbon membranes and may facilitate the applications of transparent electrodes as potential plasma-free surface-enhanced Raman scattering (SERS) substrates.
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Yao C, Hu F, Zhu J, Shen Y, Xie A. Fabrication of porous ZnO/Co 3O 4 nanohybrids for the application of surface enhanced Raman scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121921. [PMID: 36174405 DOI: 10.1016/j.saa.2022.121921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/14/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
With the growing use of various pesticides, it is important to develop facile and sensitive method to detect pesticides residues in food. Here, a semiconductor/magnetic hybrid material was used as surface enhanced Raman scattering (SERS) substrate to detect simulated residues. The representative sample of porous ZnO/Co3O4 nano-cube was fabricated by pyrolysis and calcination of Zn-Co ZIF, successively. The obtained hybrid of ZnO/Co3O4 was employed as substrate to detect of crystal violet (CV) and Rhodamine B (Rh B), and showed remarkable SERS performance. The detection limit of Rh B was 1 × 10-10 M as well as CV of 1 × 10-9 M. The results indicated that it was an ideal choice to improve the SERS property of transition metal oxide substrates by doping semiconductor. The semiconductor/magnetic hybrid material highlighted the obvious characteristics of low cost, facile preparation and ultra-low detection limit in the SERS measurements. The hybrids with the combination of semiconductor/magnetic properties showed a further widely application and development in SERS detection of pesticides residues.
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Affiliation(s)
- Chengli Yao
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, PR China; School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China
| | - Fangwei Hu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China
| | - Jinmiao Zhu
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, PR China
| | - Yuhua Shen
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China.
| | - Anjian Xie
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, PR China.
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Zhou T, Huang J, Zhao W, Guo R, Cui S, Li Y, Zhang X, Liu Y, Zhang Q. Multifunctional Plasmon-Tunable Au Nanostars and Their Applications in Highly Efficient Photothermal Inactivation and Ultra-Sensitive SERS Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4232. [PMID: 36500854 PMCID: PMC9738658 DOI: 10.3390/nano12234232] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The development and application in different fields of multifunctional plasmonic nanoparticles (NPs) have always been research hotspots. Herein, multi-tip Au nanostars (NSs) with an anisotropic structure were fabricated for the photothermal therapy (PTT) of bacteria and surface-enhanced Raman scattering (SERS) detection of pollutants. The size and localized surface plasmon resonance (LSPR) characteristics of Au NSs were adjusted by varying Au seed additions. In addition, photothermal conversion performance of Au NSs with various Au seed additions was evaluated. Photothermal conversion efficiency of Au NSs with optimal Au seed additions (50 μL) was as high as 28.75% under 808 nm laser irradiation, and the heat generated was sufficient to kill Staphylococcus aureus (S. aureus). Importantly, Au NSs also exhibited excellent SERS activity for the 4-mercaptobenzoic acid (4-MBA) probe molecule, and the local electromagnetic field distribution of Au NSs was explored through finite-difference time-domain (FDTD) simulation. As verified by experiments, Au NSs' SERS substrate could achieve a highly sensitive detection of a low concentration of potentially toxic pollutants such as methylene blue (MB) and bilirubin (BR). This work demonstrates a promising multifunctional nanoplatform with great potential for efficient photothermal inactivation and ultra-sensitive SERS detection.
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Affiliation(s)
- Tianxiang Zhou
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Jie Huang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Wenshi Zhao
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Guo
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Sicheng Cui
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Yuqing Li
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Xiaolong Zhang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Qi Zhang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
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Sun S, Zheng J, Sun R, Wang D, Sun G, Zhang X, Gong H, Li Y, Gao M, Li D, Xu G, Liang X. Defect-Rich Monolayer MoS 2 as a Universally Enhanced Substrate for Surface-Enhanced Raman Scattering. NANOMATERIALS 2022; 12:nano12060896. [PMID: 35335709 PMCID: PMC8953205 DOI: 10.3390/nano12060896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 02/04/2023]
Abstract
Monolayer 2H-MoS2 has been widely noticed as a typical transition metal dichalcogenides (TMDC) for surface-enhanced Raman scattering (SERS). However, monolayer MoS2 is limited to a narrow range of applications due to poor detection sensitivity caused by the combination of a lower density of states (DOS) near the Fermi energy level as well as a rich fluorescence background. Here, surfaced S and Mo atomic defects are fabricated on a monolayer MoS2 with a perfect lattice. Defects exhibit metallic properties. The presence of defects enhances the interaction between MoS2 and the detection molecule, and it increases the probability of photoinduced charge transfer (PICT), resulting in a significant improvement of Raman enhancement. Defect-containing monolayer MoS2 enables the fluorescence signal of many dyes to be effectively burst, making the SERS spectrum clearer and making the limits of detection (LODs) below 10−8 M. In conclusion, metallic defect-containing monolayer MoS2 becomes a promising and versatile substrate capable of detecting a wide range of dye molecules due to its abundant DOS and effective PICT resonance. In addition, the synergistic effect of surface defects and of the MoS2 main body presents a new perspective for plasma-free SERS based on the chemical mechanism (CM), which provides promising theoretical support for other TMDC studies.
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Affiliation(s)
- Shiyu Sun
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Jingying Zheng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China;
| | - Ruihao Sun
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Dan Wang
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Guanliang Sun
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Xingshuang Zhang
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Hongyu Gong
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Yong Li
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Meng Gao
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
| | - Dongwei Li
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
- Correspondence: (D.L.); (G.X.); (X.L.)
| | - Guanchen Xu
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
- Correspondence: (D.L.); (G.X.); (X.L.)
| | - Xiu Liang
- Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province (HM), Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (S.S.); (R.S.); (D.W.); (G.S.); (X.Z.); (H.G.); (Y.L.); (M.G.)
- Correspondence: (D.L.); (G.X.); (X.L.)
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