1
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Li F, Cao J, Yu H, Lin H, Chen S. Superhydrophilic Dendritic FeP/Cu 3P Electrocatalyst for Urea Splitting via the Intramolecular Mechanism. Inorg Chem 2024; 63:4204-4213. [PMID: 38386868 DOI: 10.1021/acs.inorgchem.3c04285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
The electrocatalytic overall urea splitting can achieve the dual goals of urea treatment and hydrogen energy acquisition. Herein, we exploited the principle of precipitation dissolution equilibrium to obtain bimetallic phosphide FeP/Cu3P/CF for the simultaneous oxidation of urea and reduction of water and comprehensively reveal the inherent molecular thermodynamic mechanisms on the surface of catalysts. The excellent electrochemical performance can be derived from the super water affinity and synergistic effect. Especially, the theoretical calculation unveils that the synergistic effect between FeP and Cu3P can lower the activation energy required for urea electrooxidation, thereby promoting urea splitting. In situ differential electrochemical mass spectrometry (in situ DEMS) measurements further demonstrated that urea oxidation on FeP/Cu3P/CF proceeded according to the intramolecular mechanism. This work has laid the foundation for constructing highly efficient superhydrophilic bifunctional electrocatalysts.
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Affiliation(s)
- Fang Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
| | - Jing Cao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
| | - Huiqin Yu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
| | - Haili Lin
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
| | - Shifu Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
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2
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Guo S, Park E, Byun Y, Chung H, Jin S, Park Y, Chen L, Jung YM. Effect of a Ag-rGO structure on the SERS activity of PEDOT:PSS films. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123892. [PMID: 38252985 DOI: 10.1016/j.saa.2024.123892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/28/2023] [Accepted: 01/13/2024] [Indexed: 01/24/2024]
Abstract
π-Conjugated organic semiconductors with tunable electronic structures are new prospective active substrate materials for surface-enhanced Raman scattering (SERS). However, observing higher SERS activity when using organic semiconductors as substrates could be difficult because there is no plasmonic effect of hot electrons. Here, we designed a Ag-reduced graphene oxide (rGO) structure, introduced it into a poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) solution, and spin-coated the solution to obtain a Ag-rGO/PEDOT:PSS (ARPP) film. Our analyses demonstrate that the introduction of this Ag-rGO structure can not only enhance the electromagnetic field effect based on plasmon resonance but also improve the interaction between the target molecule and the substrate in the ARPP film. This innovative approach not only improves the SERS activity of π-conjugated organic polymers but also provides novel ideas for the preparation of other organic semiconductor-based SERS substrates.
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Affiliation(s)
- Shuang Guo
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, South Korea
| | - Eungyeong Park
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, South Korea
| | - Yoonseop Byun
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, South Korea
| | - Haejin Chung
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, South Korea
| | - Sila Jin
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, South Korea
| | - Yeonju Park
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, South Korea; Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, South Korea
| | - Lei Chen
- School of Materials Science and Engineering, Jilin Jianzhu University, Changchun, China.
| | - Young Mee Jung
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, South Korea; Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, South Korea.
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3
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Wang Z, Zhang L, Sun L, Bao S, Liu D, Li H, Liu Y. Self-assembly flexible SERS imprinted membrane based on Ag nanocubes for selective detection of microcystin-LR. Mikrochim Acta 2023; 191:19. [PMID: 38087094 DOI: 10.1007/s00604-023-06096-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
Silver nanocubes monolayer-modified polydimethylsiloxane (Ag NC/PDMS) flexible SERS substrates have been prepared by a three-phase interface self-assembly procedure. The combination of this method with membrane technology brings nanoparticles in close proximity, densely, and regularly arranged in monolayers over a large area, leading to excellent SERS properties. Considering the complexity of practical detection, molecular imprinted polymers (MIPs) were anchored on the surface of SERS substrate and applied to selective detection of microcystin-LR (MC-LR). It is worth mentioning that the SERS imprinted membranes (AP-MIMs) were still clearly detected at a concentration of 0.1 µg·L-1 of MC-LR in drinking water, and the detection limit was as low as 0.0067 µg·L-1. The substrate exhibited excellent uniformity with a relative standard deviation (RSD) of 6.1%. In the presence of interference molecules, AP-MIMs exhibited excellent selectivity for MC-LR. Furthermore, in the spiking and recovery tests of practical lake water samples, the method showed excellent recoveries ranging from 96.47 to 105.31%. It has been demonstrated that the prepared AP-MIMs can be applied to sensitive and specific detection of trace amounts of MC-LR in drinking water.
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Affiliation(s)
- Zedong Wang
- College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, China
- Zhong Shan Institute of Changchun University of Science and Technology, Zhongshan, 528437, Guangdong, China
| | - Liang Zhang
- Jilin Province Product Quality Supervision and Inspection Institute, Changchun, 130022, China
| | - Lian Sun
- Jilin Province Product Quality Supervision and Inspection Institute, Changchun, 130022, China
| | - Siqi Bao
- College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, China
| | - Dajun Liu
- College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, China.
- Zhong Shan Institute of Changchun University of Science and Technology, Zhongshan, 528437, Guangdong, China.
| | - Hongji Li
- Zhong Shan Institute of Changchun University of Science and Technology, Zhongshan, 528437, Guangdong, China.
- College of Engineering, Jilin Normal University, Siping, 136000, China.
| | - Yuming Liu
- Zhong Shan Institute of Changchun University of Science and Technology, Zhongshan, 528437, Guangdong, China.
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4
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Liang C, Lu ZA, Zheng M, Chen M, Zhang Y, Zhang B, Zhang J, Xu P. Band Structure Engineering within Two-Dimensional Borocarbonitride Nanosheets for Surface-Enhanced Raman Scattering. NANO LETTERS 2022; 22:6590-6598. [PMID: 35969868 DOI: 10.1021/acs.nanolett.2c01825] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Herein, with two-dimensional (2D) borocarbonitride (BCN) as a metal- and plasmon-free surface-enhanced Raman scattering (SERS) platform, we demonstrate a band structure engineering strategy to facilitate the charge transfer process for an enhanced SERS response. Especially, when the conduction band of the BCN substrate is tuned to align with the LUMO of the target molecule, remarkable SERS performance is achieved, ascribed to the borrowing effect from the vibronic coupling of resonances through the Herzberg-Teller coupling term. Meanwhile, fluorescence quenching is achieved due to the efficient charge transfer between the BCN substrate and target molecule. Consequently, BCN can accurately detect 20 kinds of trace chemical and bioactive analytes. Moreover, BCN exhibits excellent thermal and chemical stability, which can not only withstand high-temperature (300 °C) heating in the air but also resist long-term corrosion in harsh acid (pH = 0, HCl) and base (pH = 14, NaOH). This work provides new insight into band structure engineering in promoting the SERS performance of plasmon- and metal-free semiconductor substrates.
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Affiliation(s)
- Ce Liang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Zi-Ang Lu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Ming Zheng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Mengxin Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Yuanyuan Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Bin Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Jiaxu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Ping Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
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5
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Wang X, Zhang E, Shi H, Tao Y, Ren X. Semiconductor-based surface enhanced Raman scattering (SERS): from active materials to performance improvement. Analyst 2022; 147:1257-1272. [PMID: 35253817 DOI: 10.1039/d1an02165f] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Surface enhanced Raman scattering (SERS) is a powerful spectral analysis technique and has exhibited remarkable application prospects in various fields. The design and fabrication of high-performance SERS substrates is key to promoting the development of SERS technology. Apart from noble metal substrates, non-metal substrates based on semiconductor materials have received increasing attention in recent years owing to their unique physical, chemical, and optical properties. However, compared with noble metal substrates, most semiconductor substrates show weak Raman enhancement ability. Therefore, exploring effective strategies to improve the SERS sensitivity is an urgent task. Numerous reviews have outlined the research progress of semiconductor SERS substrates, which mainly focused on summarizing the material category of semiconductor substrates. However, reviews that systematically summarize the strategies for improving the SERS performance of semiconductor substrates are lacking. In this review, we comprehensively discuss the research on semiconductor SERS from the aspects of mechanism, materials, and modification. Firstly, the Raman enhancement mechanism of semiconductor substrates and the SERS-active materials are discussed. Then, we summarize several effective approaches to boost the SERS performance of semiconductor substrates. In conclusion, we propose some prospects for this field.
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Affiliation(s)
- Xuejiao Wang
- Institute of Micro-Nano Optoelectronics and Terahertz Technology, School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
| | - Erjin Zhang
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Huimin Shi
- College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yufeng Tao
- Institute of Micro-Nano Optoelectronics and Terahertz Technology, School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
| | - Xudong Ren
- Institute of Micro-Nano Optoelectronics and Terahertz Technology, School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
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6
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Song G, Cong S, Zhao Z. Defect engineering in semiconductor-based SERS. Chem Sci 2022; 13:1210-1224. [PMID: 35222907 PMCID: PMC8809400 DOI: 10.1039/d1sc05940h] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/01/2021] [Indexed: 12/11/2022] Open
Abstract
Semiconductor-based surface enhanced Raman spectroscopy (SERS) platforms take advantage of the multifaceted tunability of semiconductor materials to realize specialized sensing demands in a wide range of applications. However, until quite recently, semiconductor-based SERS materials have generally exhibited low activity compared to conventional noble metal substrates, with enhancement factors (EF) typically reaching 103, confining the study of semiconductor-based SERS to purely academic settings. In recent years, defect engineering has been proposed to effectively improve the SERS activity of semiconductor materials. Defective semiconductors can now achieve noble-metal-comparable SERS enhancement and exceedingly low, nano-molar detection concentrations towards certain molecules. The reason for such success is that defect engineering effectively harnesses the complex enhancement mechanisms behind the SERS phenomenon by purposefully tailoring many physicochemical parameters of semiconductors. In this perspective, we introduce the main defect engineering approaches used in SERS-activation, and discuss in depth the electromagnetic and chemical enhancement mechanisms (EM and CM, respectively) that are influenced by these defect engineering methods. We also introduce the applications that have been reported for defective semiconductor-based SERS platforms. With this perspective we aim to meet the imperative demand for a summary on the recent developments of SERS material design based on defect engineering of semiconductors, and highlight the attractive research and application prospects for semiconductor-based SERS.
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Affiliation(s)
- Ge Song
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 China
- Key Lab of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Shan Cong
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences (CAS) Suzhou 215123 China
- Gusu Laboratory of Materials Suzhou 215123 China
| | - Zhigang Zhao
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 China
- Key Lab of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences (CAS) Suzhou 215123 China
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7
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Chen M, Song C, Liang C, Zhang B, Sun Y, Li S, Lin L, Xu P. Crystalline Phase Induced Raman Enhancement on Molybdenum Carbide. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00543c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystalline phase can greatly influence the Raman enhancement on semiconductor materials. Here, we demonstrate the crystalline phase induced Raman enhancement on molybdenum carbide materials (β-Mo2C and α-MoC). From all the...
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8
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Yu J, Lin J, Chen M, Meng X, Qiu L, Wu J, Xi G, Wang X. Amorphous Ni(OH)2 nanocages as efficient SERS substrates for selective recognition in mixtures. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Chu J, Cheng Y, Li X, Yang F, Xiong S, Zhang Z. Prussian Blue and Carbon-Dot Hybrids for Enhanced Electrochromic Performance. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3166. [PMID: 34207551 PMCID: PMC8227488 DOI: 10.3390/ma14123166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 01/10/2023]
Abstract
In this study, Prussian blue@Carbon-dot (PB@C-dot) hybrids have been developed by one-step hydrothermal method. The incorporation of C-dots into Prussian blue thin film as a way of improving its electrochromic performance was investigated. The structure of the PB@C-dot hybrid was characterized through X-ray diffraction, Raman spectroscopy and scanning electron microscopy. The electrochromic properties showed that incorporation of 10 mL C-dots into the film showed higher optical contrast of 1.6 and superior coloration/bleaching response of 10 and 3 s. It is proposed that the C-dots component used in the construction of the PB@C-dot hybrid plays a key role to achieve superior electrochromic performance.
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Affiliation(s)
- Jia Chu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.C.); (X.L.); (F.Y.)
- Zhejiang Yuxi Corrosion Control Co., Ltd., Ningbo 315700, China
| | - Yaping Cheng
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.C.); (X.L.); (F.Y.)
| | - Xue Li
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.C.); (X.L.); (F.Y.)
| | - Fan Yang
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.C.); (X.L.); (F.Y.)
| | - Shanxin Xiong
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.C.); (X.L.); (F.Y.)
| | - Zhao Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- Zhejiang Yuxi Corrosion Control Co., Ltd., Ningbo 315700, China
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10
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Novel prussian blue@Carbon-dots hybrid thin film: The impact of carbon-dots on material structure and electrochromic performance. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136659] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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11
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Wang X, Guo L. SERS Activity of Semiconductors: Crystalline and Amorphous Nanomaterials. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913375] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaotian Wang
- School of ChemistryKey Laboratory of Bio-Inspired Smart Interfacial Science and TechnologyMinistry of EducationBeijing Advanced Innovation Center for Biomedical EngineeringBeihang University 100191 Beijing P. R. China
| | - Lin Guo
- School of ChemistryKey Laboratory of Bio-Inspired Smart Interfacial Science and TechnologyMinistry of EducationBeijing Advanced Innovation Center for Biomedical EngineeringBeihang University 100191 Beijing P. R. China
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12
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Li A, Yu J, Lin J, Chen M, Wang X, Guo L. Increased O 2p State Density Enabling Significant Photoinduced Charge Transfer for Surface-Enhanced Raman Scattering of Amorphous Zn(OH) 2. J Phys Chem Lett 2020; 11:1859-1866. [PMID: 32068408 DOI: 10.1021/acs.jpclett.0c00187] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Enriching the electronic density of states (DOS) of semiconductors is the key to promoting charge transfer (CT) and achieving a large surface-enhanced Raman scattering (SERS) enhancement. Metal hydroxide semiconductors are anticipated to exhibit DOS that are higher than those of metal oxide because of their abundant O atoms; however, their SERS activity has not been verified. Here, combining density functional theory and experiments, we report a SERS sensitivity of amorphous Zn(OH)2 [a-Zn(OH)2] that is much higher than that of amorphous ZnO (a-ZnO), ascribed to the abundant O atoms and hence enriched O 2p state density near the Fermi level in a-Zn(OH)2, which gives rise to higher CT probabilities. Moreover, we find a-Zn(OH)2 exhibits significant advantages in energy-level matching over a-ZnO for efficient photoinduced CT via strong vibronic coupling, ascribed to the upshifted valence band maximum and the narrower band gap of a-Zn(OH)2. Via the synthesis of a-Zn(OH)2 nanocages, an ultrahigh enhancement factor of 1.29 × 106 is obtained in semiconductor-based SERS.
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Affiliation(s)
- Anran Li
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Jian Yu
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Jie Lin
- Cixi Institute of Biomedical Engineering, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 ZhongGuan West Road, Ningbo 315201, P. R. China
| | - Mo Chen
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Xiaotian Wang
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Lin Guo
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Chemistry, Beihang University, Beijing 100191, P. R. China
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13
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Wang J, Liu X, Li R, Li Z, Wang X, Wang H, Wu Y, Jiang S, Lu Z. Formation mechanism and characterization of immiscible nanoporous binary Cu–Ag alloys with excellent surface-enhanced Raman scattering performance by chemical dealloying of glassy precursors. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01521c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Immiscible nanoporous binary Cu–Ag (NPCA) alloys with customizable microstructures and excellent SERS performance have been developed by dealloying metallic glasses.
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Affiliation(s)
- Jing Wang
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Xiongjun Liu
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Rui Li
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Zhibin Li
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Xianzhen Wang
- Institute for Advanced Materials and Technology
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Hui Wang
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Yuan Wu
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Suihe Jiang
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Zhaoping Lu
- State Key Laboratory for Advanced Metals and Materials
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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14
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Wang X, Guo L. SERS Activity of Semiconductors: Crystalline and Amorphous Nanomaterials. Angew Chem Int Ed Engl 2019; 59:4231-4239. [PMID: 31733023 DOI: 10.1002/anie.201913375] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Indexed: 11/06/2022]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy on semiconductors has attracted increasing attention due to its high spectral reproducibility and unique selectively to target molecules. Recently, endeavors have been made in fabricating novel SERS-active semiconductor substrates and exploring new enhancement mechanisms to improve the sensitivity of semiconductor substrates. This Minireview explains the enhancement mechanism of the semiconductor SERS effect in a brief tutorial and summarize recent developments of novel semiconductor substrates, in particular with regard to the remarkable SERS activity of amorphous semiconductor nanomaterials. Potential applications of semiconductor SERS are also a key issue of concern. We discuss a variety of promising applications of semiconductor SERS in the fields of in situ analytical chemistry, spectroelectrochemical analysis, biological sensing, and trace detection.
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Affiliation(s)
- Xiaotian Wang
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 100191, Beijing, P. R. China
| | - Lin Guo
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 100191, Beijing, P. R. China
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