1
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Huang Q, Qin D, Xia Y. Seeing is believing: what is on the surface of silver nanocrystals suspended in their original reaction solution. Chem Sci 2024; 15:6321-6330. [PMID: 38699255 PMCID: PMC11062097 DOI: 10.1039/d4sc00730a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/31/2024] [Indexed: 05/05/2024] Open
Abstract
Colloidal synthesis of inorganic nanocrystals always involves a multitude of ionic and molecular species. How the chemical species affect the evolution of nanocrystals remains a black box. As an essential ingredient in the polyol synthesis of Ag nanocubes, Cl- has been proposed to co-adsorb on the surface with poly(vinyl pyrrolidone) (PVP) to facilitate shape evolution. However, there is still no direct evidence to confirm the presence of Cl- on the surface of Ag nanocubes while they are suspended in the original reaction solution. By leveraging the high sensitivity of surface-enhanced Raman scattering, here we offer direct evidence, for the first time, by resolving the Ag-Cl vibrational peak at 240 cm-1. This characteristic peak disappears if the synthesis is conducted in the absence of Cl-. Instead, three peaks associated with CF3COO- (from the precursor to Ag) are observed. When the sample is diluted with ethylene glycol, all the peaks associated with CF3COO- decrease proportionally in intensity, implying the involvement of chemisorption and negligible desorption during dilution. The chemisorbed CF3COO- is readily replaced by Cl- due to their major difference in binding strength. The co-adsorbed Cl- forces the carbonyl group of PVP binding to the Ag surface to take a more perpendicular configuration, enhancing its peak intensity. Altogether, these findings shed new light on the roles played by various chemical species in a successful synthesis of Ag nanocubes.
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Affiliation(s)
- Qijia Huang
- School of Chemistry and Biochemistry, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Dong Qin
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Younan Xia
- School of Chemistry and Biochemistry, Georgia Institute of Technology Atlanta Georgia 30332 USA
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta Georgia 30332 USA
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2
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Laban BB, Novaković M, Vasić-Anićijević D, Bondžić AM, Nikezić AV. A combined experimental and DFT study of metal core/indocyanine green shell hybrid nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 309:123828. [PMID: 38181626 DOI: 10.1016/j.saa.2023.123828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Indocyanine green (ICG) is the FDA-approved fluorescent dye used for in vivo medical imaging, diagnostics, and photothermal therapy. However, this dye is easily degradable in the human vascular system, and therefore its stabilization is preferable. In this work, ICG molecules were stabilized by their adsorption on the surface of the L-methionine-capped Ag and Au nanoparticles (Ag and Au @LM NPs) in aqueous colloidal dispersions. The result is the formation of hybrid metal core/ICG shell NPs in colloidal dispersions. Additionally, colloidal dispersions were stabilized, indicating a double effect of ICG adsorption. The obtained hybrid NPs were studied experimentally (UV-Vis spectrophotometry, HRTEM, DLS, FTIR) and theoretically (DFT calculations). HRTEM revealed that the interplanar spacing between adjacent planes of NPs decreases after the dye adsorption. The results obtained from the DFT study confirmed the formation of a covalent bond between the oxygen from ICG dye SO3- group and metal NPs. Considering the characteristics of both components of the NPs/ICG hybrid system, the authors assume that this hybrid system can exhibit the synergistic effect that could lead to more successful theranostic treatment of cancer in nanomedicine.
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Affiliation(s)
- Bojana B Laban
- Faculty of Sciences and Mathematics, University of Priština in Kosovska Mitrovica, Lole Ribara 29, 38220 Kosovska Mitrovica, Serbia.
| | - Mirjana Novaković
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Dragana Vasić-Anićijević
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Aleksandra M Bondžić
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Ana Vujačić Nikezić
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
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3
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Zheng X, Ye Z, Akmal Z, He C, Zhang J, Wang L. Recent progress in SERS monitoring of photocatalytic reactions. Chem Soc Rev 2024; 53:656-683. [PMID: 38165865 DOI: 10.1039/d3cs00462g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a powerful analytical technique renowned for its ultra-high sensitivity. Extensive research in SERS has led to the development of a wide range of SERS substrates, including plasmonic metals, semiconductors, metal organic frameworks, and their assemblies. Some of these materials are also excellent photocatalysts, and by taking advantage of their bifunctional characteristics, the photocatalytic processes that occur on their surface can be monitored in situ via SERS. This provides us with unique opportunities to gain valuable insights into the intricate details of the photocatalytic processes that are challenging to access using other techniques. In this review, we highlight key development in in situ and/or real-time SERS-tracking of photocatalytic reactions. We begin by providing a brief account of recent developments in SERS substrates, followed by discussions on how SERS can be used to elucidate crucial aspects of photocatalytic processes, including: (1) the influence of the surrounding media on charge carrier extraction; (2) the direction of charge carrier transfer; (3) the pathway of photocatalytic activation; and (4) differentiation between the effects of photo-thermal and energetic electrons. Additionally, we discuss the benefits of tip-enhanced Raman spectroscopy (TERS) due to the ability to achieve high-spatial-resolution measurements. Finally, we address major challenges and propose potential directions for the future of SERS monitoring of photocatalytic reactions. By leveraging the capabilities of SERS, we can uncover new insights into photocatalytic processes, paving the way for advancements in sustainable energy and environmental remediation.
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Affiliation(s)
- Xinlu Zheng
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science &Technology, 130 Meilong Road, Shanghai, 200237, China.
| | - Ziwei Ye
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science &Technology, 130 Meilong Road, Shanghai, 200237, China.
| | - Zeeshan Akmal
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science &Technology, 130 Meilong Road, Shanghai, 200237, China.
| | - Chun He
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science &Technology, 130 Meilong Road, Shanghai, 200237, China.
| | - Jinlong Zhang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science &Technology, 130 Meilong Road, Shanghai, 200237, China.
| | - Lingzhi Wang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science &Technology, 130 Meilong Road, Shanghai, 200237, China.
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4
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Li Z, Rigor J, Ehtesabi S, Gojare S, Kupfer S, Gräfe S, Large N, Kurouski D. Role of Plasmonic Antenna in Hot Carrier-Driven Reactions on Bimetallic Nanostructures. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:22635-22645. [PMID: 38357685 PMCID: PMC10863061 DOI: 10.1021/acs.jpcc.3c06520] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/20/2023] [Accepted: 10/20/2023] [Indexed: 02/16/2024]
Abstract
Noble metal nanostructures can efficiently harvest electromagnetic radiation, which, in turn, is used to generate localized surface plasmon resonances. Surface plasmons decay, producing hot carriers, that is, short-lived species that can trigger chemical reactions on metallic surfaces. However, noble metal nanostructures catalyze only a very small number of chemical reactions. This limitation can be overcome by coupling such nanostructures with catalytic-active metals. Although the role of such catalytically active metals in plasmon-driven catalysis is well-understood, the mechanistics of a noble metal antenna in such chemistry remains unclear. In this study, we utilize tip-enhanced Raman spectroscopy, an innovative nanoscale imaging technique, to investigate the rates and yields of plasmon-driven reactions on mono- and bimetallic gold- and silver-based nanostructures. We found that silver nanoplates (AgNPs) demonstrate a significantly higher yield of 4-nitrobenzenehtiol to p,p'-dimercaptoazobisbenzene (DMAB) reduction than gold nanoplates (AuNPs). We also observed substantially greater yields of DMAB on silver-platinum and silver-palladium nanoplates (Ag@PtNPs and Ag@PdNPs) compared to their gold analogues, Au@PtNPs and Au@PdNPs. Furthermore, Ag@PtNPs exhibited enhanced reactivity in 4-mercatophenylmethanol to 4-mercaptobenzoic acid oxidation compared to Au@PtNPs. These results showed that silver-based bimetallic nanostructures feature much greater reactivity compared to their gold-based analogues.
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Affiliation(s)
- Zhandong Li
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Joel Rigor
- Department
of Physics and Astronomy, The University
of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Sadaf Ehtesabi
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Siddhi Gojare
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Stephan Kupfer
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Stefanie Gräfe
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Nicolas Large
- Department
of Physics and Astronomy, The University
of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Dmitry Kurouski
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- The
Institute for Quantum Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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5
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Li Z, Ehtesabi S, Gojare S, Richter M, Kupfer S, Gräfe S, Kurouski D. Plasmon-Determined Selectivity in Photocatalytic Transformations on Gold and Gold-Palladium Nanostructures. ACS PHOTONICS 2023; 10:3390-3400. [PMID: 38356782 PMCID: PMC10863388 DOI: 10.1021/acsphotonics.3c00893] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Indexed: 02/16/2024]
Abstract
Noble metal nanostructures absorb light producing coherent oscillations of the metal's electrons, so-called localized surface plasmon resonances (LSPRs). LSPRs can decay generating hot carriers, highly energetic species that trigger chemical transformations in the molecules located on the metal surfaces. The number of chemical reactions can be expanded by coupling noble and catalytically active metals. However, it remains unclear whether such mono- and bimetallic nanostructures possess any sensitivity toward one or another chemical reaction if both of them can take place in one molecular analyte. In this study, we utilize tip-enhanced Raman spectroscopy (TERS), an emerging analytical technique that has single-molecule sensitivity and sub-nanometer spatial resolution, to investigate plasmon-driven reactivity of 2-nitro-5-thiolobenzoic acid (2-N-5TBA) on gold and gold@palladium nanoplates (AuNPs and Au@PdNPs). This molecular analyte possesses both nitro and carboxyl groups, which can be reduced or removed by hot carriers. We found that on AuNPs, 2-N-5TBA dimerized forming 4,4'-dimethylazobenzene (DMAB), the bicarbonyl derivative of DMAB, as well as 4-nitrobenzenethiol (4-NBT). Our accompanying theoretical investigation based on density functional theory (DFT) and time-dependent density functional theory (TDDFT) confirmed these findings. The theoretical analysis shows that 2-N-5TBA first dimerized forming the bicarbonyl derivative of DMAB, which then decarboxylated forming DMAB. Finally, DMAB can be further reduced leading to 4-NBT. This reaction mechanism is supported by TERS-determined yields on these three molecules on AuNPs. We also found that on Au@PdNPs, 2-N-5TBA first formed the bicarbonyl derivative of DMAB, which is then reduced to both bihydroxyl-DMAB and 4-amino-3-mercaptobenzoic acid. The yield of these reaction products on Au@PdNPs strictly follows the free-energy potential of these molecules on the metallic surfaces.
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Affiliation(s)
- Zhandong Li
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Sadaf Ehtesabi
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Siddhi Gojare
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Martin Richter
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Stephan Kupfer
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Stefanie Gräfe
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Dmitry Kurouski
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- Department
of Biomedical Engineering, Texas A&M
University, College Station, Texas 77843, United States
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6
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Patil SJ, Kurouski D. Tip-enhanced Raman imaging of plasmon-driven dimerization of 4-bromothiophenol on nickel-decorated gold nanoplate bimetallic nanostructures. Chem Commun (Camb) 2023; 59:10976-10979. [PMID: 37614175 DOI: 10.1039/d3cc02670a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
We used tip-enhanced Raman spectroscopy (TERS) to examine plasmon-driven dimerization of 4-bromothiophenol (4-BTP) into thiophenol (TP) and 4,4'-biphenyldithiol (4,4'-BPDT) on Au and Ni@AuNPs. TERS revealed that cross-coupling of these molecular reactants into 4,4'-BPDT occurred primarily on Ni nano islands rather than the surrounding Au on the surface of Ni@AuNPs.
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Affiliation(s)
- Swati J Patil
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA.
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA.
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, 77843, USA
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7
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Zhao Y, Adiyeri Saseendran DP, Huang C, Triana CA, Marks WR, Chen H, Zhao H, Patzke GR. Oxygen Evolution/Reduction Reaction Catalysts: From In Situ Monitoring and Reaction Mechanisms to Rational Design. Chem Rev 2023; 123:6257-6358. [PMID: 36944098 DOI: 10.1021/acs.chemrev.2c00515] [Citation(s) in RCA: 50] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are core steps of various energy conversion and storage systems. However, their sluggish reaction kinetics, i.e., the demanding multielectron transfer processes, still render OER/ORR catalysts less efficient for practical applications. Moreover, the complexity of the catalyst-electrolyte interface makes a comprehensive understanding of the intrinsic OER/ORR mechanisms challenging. Fortunately, recent advances of in situ/operando characterization techniques have facilitated the kinetic monitoring of catalysts under reaction conditions. Here we provide selected highlights of recent in situ/operando mechanistic studies of OER/ORR catalysts with the main emphasis placed on heterogeneous systems (primarily discussing first-row transition metals which operate under basic conditions), followed by a brief outlook on molecular catalysts. Key sections in this review are focused on determination of the true active species, identification of the active sites, and monitoring of the reactive intermediates. For in-depth insights into the above factors, a short overview of the metrics for accurate characterizations of OER/ORR catalysts is provided. A combination of the obtained time-resolved reaction information and reliable activity data will then guide the rational design of new catalysts. Strategies such as optimizing the restructuring process as well as overcoming the adsorption-energy scaling relations will be discussed. Finally, pending current challenges and prospects toward the understanding and development of efficient heterogeneous catalysts and selected homogeneous catalysts are presented.
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Affiliation(s)
- Yonggui Zhao
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | | | - Chong Huang
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Carlos A Triana
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Walker R Marks
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Hang Chen
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Han Zhao
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Greta R Patzke
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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8
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Steczkowski M, Kurouski D. Elucidation of the effect of heat exposure on hair colored by permanent and semipermanent colorants using surface-enhanced Raman spectroscopy. J Forensic Sci 2023; 68:807-814. [PMID: 36920026 DOI: 10.1111/1556-4029.15235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 03/16/2023]
Abstract
Confirmatory identification of hair colorants can be used to establish a connection between a suspect and the crime science or demonstrate the absence of such connections. A growing body of evidence shows that surface-enhanced Raman spectroscopy (SERS) could be a confirmatory, minimally destructive, and fully noninvasive analysis of hair colorants. In SERS, a signal that provide the information about the chemical structure of both permanent and semipermanent dyes present on hair is enhanced by a million-fold using noble metal nanostructures. However, it is unclear whether the information of hair colorants can be revealed if hair was contaminated or exposed to harsh environments such as sunlight and heat. In this work, we determine the effect of a short- and long-term heat exposure on SERS-based analysis of hair colored with blue and red permanent and semipermanent dyes. We found that short and especially long-term heat exposure at 220°C could alter chemical structure, and consequently SERS spectra, of permanent and semipermanent colorants. This thermal degradation of permanent dyes complicates their direct identification using SERS. We also found that partial least squares discriminant analysis can be used to overcome this issue allowing for highly accurate identification of both permanent and semipermanent dyes on colored hair that was exposed to 220°C for 6-12 min. These results show that heat exposure of colored hair should be strongly considered upon their SERS-based examination to avoid both false positive or false negative identification of chemical dyes.
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Affiliation(s)
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, USA
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9
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Govindan B, Sabri MA, Hai A, Banat F, Haija MA. A Review of Advanced Multifunctional Magnetic Nanostructures for Cancer Diagnosis and Therapy Integrated into an Artificial Intelligence Approach. Pharmaceutics 2023; 15:pharmaceutics15030868. [PMID: 36986729 PMCID: PMC10058002 DOI: 10.3390/pharmaceutics15030868] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/10/2023] Open
Abstract
The new era of nanomedicine offers significant opportunities for cancer diagnostics and treatment. Magnetic nanoplatforms could be highly effective tools for cancer diagnosis and treatment in the future. Due to their tunable morphologies and superior properties, multifunctional magnetic nanomaterials and their hybrid nanostructures can be designed as specific carriers of drugs, imaging agents, and magnetic theranostics. Multifunctional magnetic nanostructures are promising theranostic agents due to their ability to diagnose and combine therapies. This review provides a comprehensive overview of the development of advanced multifunctional magnetic nanostructures combining magnetic and optical properties, providing photoresponsive magnetic platforms for promising medical applications. Moreover, this review discusses various innovative developments using multifunctional magnetic nanostructures, including drug delivery, cancer treatment, tumor-specific ligands that deliver chemotherapeutics or hormonal agents, magnetic resonance imaging, and tissue engineering. Additionally, artificial intelligence (AI) can be used to optimize material properties in cancer diagnosis and treatment, based on predicted interactions with drugs, cell membranes, vasculature, biological fluid, and the immune system to enhance the effectiveness of therapeutic agents. Furthermore, this review provides an overview of AI approaches used to assess the practical utility of multifunctional magnetic nanostructures for cancer diagnosis and treatment. Finally, the review presents the current knowledge and perspectives on hybrid magnetic systems as cancer treatment tools with AI models.
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Affiliation(s)
- Bharath Govindan
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Correspondence: (B.G.); (M.A.H.); Tel.: +971-2-4150 (B.G.)
| | - Muhammad Ashraf Sabri
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Abdul Hai
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Mohammad Abu Haija
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Advanced Materials Chemistry Center (AMCC), Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Correspondence: (B.G.); (M.A.H.); Tel.: +971-2-4150 (B.G.)
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10
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Itoh T, Procházka M, Dong ZC, Ji W, Yamamoto YS, Zhang Y, Ozaki Y. Toward a New Era of SERS and TERS at the Nanometer Scale: From Fundamentals to Innovative Applications. Chem Rev 2023; 123:1552-1634. [PMID: 36745738 PMCID: PMC9952515 DOI: 10.1021/acs.chemrev.2c00316] [Citation(s) in RCA: 63] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 02/08/2023]
Abstract
Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) have opened a variety of exciting research fields. However, although a vast number of applications have been proposed since the two techniques were first reported, none has been applied to real practical use. This calls for an update in the recent fundamental and application studies of SERS and TERS. Thus, the goals and scope of this review are to report new directions and perspectives of SERS and TERS, mainly from the viewpoint of combining their mechanism and application studies. Regarding the recent progress in SERS and TERS, this review discusses four main topics: (1) nanometer to subnanometer plasmonic hotspots for SERS; (2) Ångström resolved TERS; (3) chemical mechanisms, i.e., charge-transfer mechanism of SERS and semiconductor-enhanced Raman scattering; and (4) the creation of a strong bridge between the mechanism studies and applications.
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Affiliation(s)
- Tamitake Itoh
- Health
and Medical Research Institute, National
Institute of Advanced Industrial Science and Technology (AIST), 2217-14 Hayashi-cho, Takamatsu, 761-0395Kagawa, Japan
| | - Marek Procházka
- Faculty
of Mathematics and Physics, Institute of Physics, Charles University, Ke Karlovu 5, 121 16Prague 2, Czech Republic
| | - Zhen-Chao Dong
- Hefei
National Research Center for Physical Sciences at the Microscale, University of Science and Technique of China, Hefei230026, China
| | - Wei Ji
- College
of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin145040, China
| | - Yuko S. Yamamoto
- School
of Materials Science, Japan Advanced Institute
of Science and Technology (JAIST), Nomi, 923-1292Ishikawa, Japan
| | - Yao Zhang
- Hefei
National Research Center for Physical Sciences at the Microscale, University of Science and Technique of China, Hefei230026, China
| | - Yukihiro Ozaki
- School of
Biological and Environmental Sciences, Kwansei
Gakuin University, 2-1,
Gakuen, Sanda, 669-1330Hyogo, Japan
- Toyota
Physical and Chemical Research Institute, Nagakute, 480-1192Aichi, Japan
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11
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Potential Controlled Redox Cycling of 4-aminothiophenol by Coupling Plasmon Mediated Chemical Reaction with Electrochemical Reaction. J Catal 2023. [DOI: 10.1016/j.jcat.2023.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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dos Santos Lopes D, dos Santos Abreu D, Ando RA, Corio P. Regioselective Plasmon-Driven Decarboxylation of Mercaptobenzoic Acids Triggered by Distinct Reactive Oxygen Species. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Douglas dos Santos Lopes
- Department of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Prof. Lineu Prestes, 748, Sao Paulo 05508000, Brazil
| | - Dieric dos Santos Abreu
- Department of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Prof. Lineu Prestes, 748, Sao Paulo 05508000, Brazil
- Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara, Campus Pici, Fortaleza, Ceara 60455-970, Brazil
| | - Rômulo Augusto Ando
- Department of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Prof. Lineu Prestes, 748, Sao Paulo 05508000, Brazil
| | - Paola Corio
- Department of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Prof. Lineu Prestes, 748, Sao Paulo 05508000, Brazil
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13
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Li Z, Kurouski D. Can Light Alter the Yield of Plasmon-Driven Reactions on Gold and Gold-Palladium Nanoplates? NANO LETTERS 2022; 22:7484-7491. [PMID: 36122388 DOI: 10.1021/acs.nanolett.2c02428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Noble-metal nanostructures, as well as their bimetallic analogues, catalyze a broad spectrum of plasmon-driven reactions. Catalytic properties of such nanostructures arise from light-generated surface plasmon resonances that decay forming transient hot electrons and holes. Hot carriers with "slower" dissipation rates accumulate on nanostructures generating an electrostatic potential. In this study, we examine whether light intensity can alter the electrostatic potential of mono- and bimetallic nanostructures changing yields of plasmon-driven reactions. Using tip-enhanced Raman spectroscopy (TERS), we quantified the yield of plasmon-driven transformations of 4-nitrobenzenethiol (4-NBT) and 3-mercaptobenzoic acid (3-MBA) on gold and gold-palladium nanoplates (AuNPs and Au@PdNPs, respectively). We found that on AuNPs 3-MBA decarboxylated forming thiophenol (TP), whereas 4-NBT was reduced to DMAB. The yield of both TP and DMAB gradually increased with increasing light intensity. On Au@PdNPs, 3-MBA could be reduced to 3-mercaptophenylmethanol (3-MPM), the yield of which was also directly dependent on the light intensity.
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Affiliation(s)
- Zhandong Li
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
- The Institute for Quantum Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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14
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Qu S, Guan J, Cai D, Wang Q, Wang X, Song W, Ji W. An Electrochromic Ag-Decorated WO 3-x Film with Adjustable Defect States for Electrochemical Surface-Enhanced Raman Spectroscopy. NANOMATERIALS 2022; 12:nano12101637. [PMID: 35630860 PMCID: PMC9146956 DOI: 10.3390/nano12101637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 02/01/2023]
Abstract
Electrochemical surface-enhanced Raman scattering (EC-SERS) spectroscopy is an ultrasensitive spectro-electrochemistry technique that provides mechanistic and dynamic information on electrochemical interfaces at the molecular level. However, the plasmon-mediated photocatalysis hinders the intrinsic electrochemical behavior of molecules at electrochemical interfaces. This work aimed to develop a facile method for constructing a reliable EC-SERS substrate that can be used to study the molecular dynamics at electrochemical interfaces. Herein, a novel Ag-WO3-x electrochromic heterostructure was synthesized for EC-SERS. Especially, the use of electrochromic WO3-x film suppresses the influence of hot-electrons-induced catalysis while offering a reliable SERS effect. Based on this finding, the real electrochemical behavior of p-aminothiophenol (PATP) on Ag nanoparticles (NPs) surface was revealed for the first time. We are confident that metal-semiconductor electrochromic heterostructures could be developed into reliable substrates for EC-SERS analysis. Furthermore, the results obtained in this work provide new insights not only into the chemical mechanism of SERS, but also into the hot-electron transfer mechanism in metal-semiconductor heterostructures.
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Affiliation(s)
- Siqi Qu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (S.Q.); (J.G.); (D.C.); (Q.W.)
| | - Jing Guan
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (S.Q.); (J.G.); (D.C.); (Q.W.)
| | - Dongqi Cai
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (S.Q.); (J.G.); (D.C.); (Q.W.)
| | - Qianshuo Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (S.Q.); (J.G.); (D.C.); (Q.W.)
| | - Xiuyun Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (S.Q.); (J.G.); (D.C.); (Q.W.)
- Correspondence: (X.W.); (W.S.); (W.J.)
| | - Wei Song
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
- Correspondence: (X.W.); (W.S.); (W.J.)
| | - Wei Ji
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (S.Q.); (J.G.); (D.C.); (Q.W.)
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 145040, China
- Correspondence: (X.W.); (W.S.); (W.J.)
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15
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Guan J, Wu S, Li L, Wang X, Ji W, Ozaki Y. New Insights of Charge Transfer at Metal/Semiconductor Interfaces for Hot-Electron Generation Studied by Surface-Enhanced Raman Spectroscopy. J Phys Chem Lett 2022; 13:3571-3578. [PMID: 35426671 DOI: 10.1021/acs.jpclett.2c00239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Plasmonic nanostructures with hot spots are very efficient in generating energetic (hot) electrons to realize light-driven chemical reactions. This effect primarily originates from high electric fields with nonuniform distribution in the hot-spot area. However, charge-transfer (CT) at plasmonic nanostructure interfaces and its effect on hot-electron generation have not been explored in detail. Here, a series of semiconductor/metal interfaces, with continuously adjustable energy-band structures, were constructed by the assembly of CdxZn1-xS supports and Au nanoparticles (NPs) interconnected with p-aminothiophenol (PATP) molecules. The plasmon-mediated oxidation of PATP embedded in CdxZn1-xS/PATP/45 nm-Au NP molecular junctions was systematically investigated using gap-mode-liked surface-enhanced Raman spectroscopy (SERS). Combining in situ SERS studies with energy-level analysis, interfacial CT was found to be a primary determinant of hot-electron-induced oxygen activation on large Au NP surfaces. This study provides a new perspective on the hot-electron generation mechanism to facilitate the rational design of efficient plasmonic photocatalysts.
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Affiliation(s)
- Jing Guan
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Shuo Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Linfang Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiuyun Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wei Ji
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 145040, China
| | - Yukihiro Ozaki
- School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
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16
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Lu Y, Wu LW, Cao W, Huang YF. Finding a Sensitive Surface-Enhanced Raman Spectroscopic Thermometer at the Nanoscale by Examining the Functional Groups. Anal Chem 2022; 94:6011-6016. [PMID: 35377614 DOI: 10.1021/acs.analchem.2c00633] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Temperature variation at the nanoscale is pivotal for the thermodynamics and kinetics of small entities. Surface-enhanced Raman spectroscopy (SERS) is a promising technique for monitoring temperature variations at the nanoscale. A key but ambiguous topic is methods to design a sensitive SERS thermometer. Here, we elucidate that the type of chemical bond of molecular probes and the surface chemical bonding effect are crucial for maximizing the sensitivity of the SERS thermometer, as illustrated by the variable-temperature SERS measurements and quantum chemistry calculations for the frequency-temperature functions of a series of molecules. The sensitivity of the frequency-temperature function follows the sequence of triple bond > double bond > single bond, which is available for both aliphatic and aromatic molecules. The surface chemical bonding effect between the SERS substrate and molecular probe substantially increases the sensitivity of the frequency-temperature function. These results provide universally available guidelines for the rational design of a sensitive SERS thermometer by examining the functional groups of molecular probes.
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Affiliation(s)
- Yang Lu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Li-Wen Wu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Wumei Cao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Yi-Fan Huang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
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17
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Experimental characterization techniques for plasmon-assisted chemistry. Nat Rev Chem 2022; 6:259-274. [PMID: 37117871 DOI: 10.1038/s41570-022-00368-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2022] [Indexed: 12/19/2022]
Abstract
Plasmon-assisted chemistry is the result of a complex interplay between electromagnetic near fields, heat and charge transfer on the nanoscale. The disentanglement of their roles is non-trivial. Therefore, a thorough knowledge of the chemical, structural and spectral properties of the plasmonic/molecular system being used is required. Specific techniques are needed to fully characterize optical near fields, temperature and hot carriers with spatial, energetic and/or temporal resolution. The timescales for all relevant physical and chemical processes can range from a few femtoseconds to milliseconds, which necessitates the use of time-resolved techniques for monitoring the underlying dynamics. In this Review, we focus on experimental techniques to tackle these challenges. We further outline the difficulties when going from the ensemble level to single-particle measurements. Finally, a thorough understanding of plasmon-assisted chemistry also requires a substantial joint experimental and theoretical effort.
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18
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Recent Advances in the Development of Noble Metal NPs for Cancer Therapy. Bioinorg Chem Appl 2022; 2022:2444516. [PMID: 35126483 PMCID: PMC8816609 DOI: 10.1155/2022/2444516] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/08/2022] [Indexed: 12/14/2022] Open
Abstract
With the development of nanotechnology, noble metal nanoparticles are widely used in the treatment of cancer due to their unique optical properties, excellent biocompatibility, surface effects, and small size effects. In recent years, researchers have designed and synthesized a large number of nanomedicines that can be used for cancer treatment based on the morphology, physical and chemical properties, mechanism of action, and toxicological studies of noble metal nanoparticles. Furthermore, the integration of diagnosis and treatment, hyperthermia, cytotoxicity research, and drug delivery system based on the study of noble metal nanoparticles can be used as effective means for cancer treatment. This article focuses on the analysis of noble metal nanoparticles that are widely used in the treatment of cancer, such as gold nanoparticles, silver nanoparticles, platinum nanoparticles, and palladium nanoparticles. The various methods and mechanisms of action of noble metal nanoparticles in the treatment of cancer are objectively summarized in detail. Based on the research on the therapeutic safety and toxicity of noble metal nanoparticles, the development prospect of noble metal nanoparticles in the future clinical application is prospected.
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19
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Lopes DS, Vono LLR, Miranda EV, Ando RA, Corio P. Inhibition of p‐nitrothiophenol catalytic hydrogenation on Ag‐containing AgAu/Pd/TiO2 plasmonic catalysts probed in situ by SERS. ChemCatChem 2022. [DOI: 10.1002/cctc.202101943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Douglas S. Lopes
- University of Sao Paulo: Universidade de Sao Paulo Chemistry Av. Prof. Lineu Prestes, 748 005508900 São Paulo BRAZIL
| | - Lucas L. R. Vono
- University of Sao Paulo: Universidade de Sao Paulo Chemistry BRAZIL
| | - Ester V. Miranda
- University of Sao Paulo: Universidade de Sao Paulo Chemistry BRAZIL
| | - Rômulo A. Ando
- University of Sao Paulo: Universidade de Sao Paulo Chemistry BRAZIL
| | - Paola Corio
- University of Sao Paulo Institute of Chemistry Av. Prof. Lineu Prestes, 748 05508000 Sao Paulo BRAZIL
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20
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Zhou B, Ou W, Shen J, Zhao C, Zhong J, Du P, Bian H, Li P, Yang L, Lu J, Li YY. Controlling Plasmon-Aided Reduction of p-Nitrothiophenol by Tuning the Illumination Wavelength. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Binbin Zhou
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
| | - Weihui Ou
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
| | - Junda Shen
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R.China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
| | - Chenghao Zhao
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R.China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
| | - Jing Zhong
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R.China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
| | - Peng Du
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R.China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
| | - Haidong Bian
- Shenzhen Automotive Research Institute, Beijing Institute of Technology, Shenzhen 518055, P. R. China
| | - Pan Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, P. R. China
| | - Liangbao Yang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, P. R. China
- Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, Anhui, P. R. China
| | - Jian Lu
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Centre for Advanced Structural Materials, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
- CityU-Shenzhen Futian Research Institute, Shenzhen 518045, P. R. China
| | - Yang Yang Li
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R.China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 99907, Hong Kong SAR, P. R. China
- Centre for Advanced Structural Materials, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
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21
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Shiu YJ, Hayashi M, Lai YH, Jeng US. Revealing the effects of molecular orientations on the azo-coupling reaction of nitro compounds driven by surface plasmonic resonances. Phys Chem Chem Phys 2021; 23:21748-21756. [PMID: 34549758 DOI: 10.1039/d1cp03041h] [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
A recent report on the azo coupling of 4-nitrobenzo-15-crown-ether (4NB15C) and 4-nitrothiophenol (4NTP) indicated that the reaction barrier could be reduced greatly with surface plasmonic effects on silver dendritic nanostructures in aqueous solution. Accordingly, an azo coupling reaction mechanism was proposed based on one or two SERS peaks. Toward a profound understanding of this azo coupling reaction mechanism, it is crucial to scrutinize the origin of the full SERS spectrum. Here, we construct a molecular model consisting of 4NTP and 4NB15C on an Ag7 cluster that simulates a silver dendritic nanostructure, and investigate the SERS spectra of the azo coupling of these two molecules. We propose five different adsorption sites and 13 different orientations of 4NTP on the Ag7 cluster and optimize the geometries of the five configurations. With each optimized configuration of 4NTP adsorbed on Ag7, we further consider the azo coupling product with a 4NB15C molecule and simulate the corresponding Raman spectra. Comparing the measured Raman spectra and model analysis, we conclude that the azo coupling reaction depends decisively on a parallel molecular orientation of the adsorbed 4NTP relative to the facets of Ag7, the orientation of which further directs the subsequent reaction for the product of 4NB15C-4NTP.
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Affiliation(s)
- Ying-Jen Shiu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan.
| | - Michitoshi Hayashi
- Center for Condensed Matter Sciences, National Taiwan University, Taipei, 10617, Taiwan.
| | - Ying-Huang Lai
- Department of Chemistry, Tunghai University, Taichung, 40704, Taiwan
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan. .,Chemical Engineering Department, National Tsing-Hua University, Hsinchu, 30013, Taiwan
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22
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Xue S, Chen SL, Ling Q, Yuan Q, Gan W. Photocatalytic redox on the surface of colloidal silver nanoparticles revealed by second harmonic generation and two-photon luminescence. Phys Chem Chem Phys 2021; 23:19752-19759. [PMID: 34524302 DOI: 10.1039/d1cp02722k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox of silver on the surface of Ag nanoparticles (AgNPs) has received extensive attention because of its significant impact on the biological, physical and chemical properties of AgNPs and their applications. Here we demonstrate that the surface redox reaction of AgNPs in colloids may be investigated by the second harmonic generation (SHG) and two-photon luminescence (TPL) emission from the AgNPs. It was revealed that the oxidation of silver on the surface of AgNPs was accelerated upon femtosecond laser excitation, accompanied by a decrease in the SHG and TPL emissions from the AgNPs. The photon-induced reduction of oxidized silver on AgNPs and the formation of surface defects were also revealed by the changes in the SHG and TPL emissions. Size and morphology changes have not been detected by dynamic light scattering and TEM measurements. The changes in the UV-vis extinction spectra were also very weak compared with previous reports. However, the occurrence of redox reactions on the Ag surface upon femtosecond laser irradiation has been confirmed by multiple control experiments. This work demonstrates that SHG and TPL can sensitively probe the subtle structural change on the surface of AgNPs.
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Affiliation(s)
- Shan Xue
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, also School of Science, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen 518055, Guangdong, China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China.
| | - Shun-Li Chen
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structure Materials of Guangdong Province, Shantou University, Shantou 515063, Guangdong, China
| | - Qing Ling
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, also School of Science, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen 518055, Guangdong, China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China.
| | - Qunhui Yuan
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, also School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen 518055, Guangdong, China
| | - Wei Gan
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology, also School of Science, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen 518055, Guangdong, China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China.
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23
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Su HS, Feng HS, Wu X, Sun JJ, Ren B. Recent advances in plasmon-enhanced Raman spectroscopy for catalytic reactions on bifunctional metallic nanostructures. NANOSCALE 2021; 13:13962-13975. [PMID: 34477677 DOI: 10.1039/d1nr04009j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metallic nanostructures exhibit superior catalytic performance for diverse chemical reactions and the in-depth understanding of reaction mechanisms requires versatile characterization methods. Plasmon-enhanced Raman spectroscopy (PERS), including surface-enhanced Raman spectroscopy (SERS), shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), and tip-enhanced Raman spectroscopy (TERS), appears as a powerful technique to characterize the Raman fingerprint information of surface species with high chemical sensitivity and spatial resolution. To expand the range of catalytic reactions studied by PERS, catalytically active metals are integrated with plasmonic metals to produce bifunctional metallic nanostructures. In this minireview, we discuss the recent advances in PERS techniques to probe the chemical reactions catalysed by bifunctional metallic nanostructures. First, we introduce different architectures of these dual-functionality nanostructures. We then highlight the recent works using PERS to investigate important catalytic reactions as well as the electronic and catalytic properties of these nanostructures. Finally, we provide some perspectives for future PERS studies in this field.
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Affiliation(s)
- Hai-Sheng Su
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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24
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Li Z, Kurouski D. Tip-Enhanced Raman Analysis of Plasmonic and Photocatalytic Properties of Copper Nanomaterials. J Phys Chem Lett 2021; 12:8335-8340. [PMID: 34431299 DOI: 10.1021/acs.jpclett.1c02500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Theoretical predictions suggest that, in addition to gold (Au) and silver (Ag), several other metals such as copper (Cu) and aluminum (Al) can be used as plasmonic materials. However, their plasmonic and photocatalytic properties remain poorly understood. In this contribution, we employed tip-enhanced Raman spectroscopy to examine photocatalytic properties of Cu nanowires and nanocubes (CuNWs and CuNCs). Our results show that both CuNWs and CuNCs demonstrate a far more efficient photocatalytic dimerization of 4-nitrobenzenethiol to 4,4'-dimercaptoazobenzene than Au nano and microplates. We also found that CuNWs and CuNCs can neither reduce 4-mercaptobenzoic acid (4-MBA) to the corresponding aromatic alcohol nor dearboxylate it forming benzenethiol. We infer that this is due to a unique coordination of 4-MBA on Cu surfaces that was only rarely observed on Au and Ag nanomaterials. Finally, we found that Cu nanostructures can oxidize 4-mercapto-phenyl-methanol to 4-MBA, which was previously only observed on gold-platinum nanoplates.
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Affiliation(s)
- Zhandong Li
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
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25
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Shao F, Wang W, Yang W, Yang Z, Zhang Y, Lan J, Dieter Schlüter A, Zenobi R. In-situ nanospectroscopic imaging of plasmon-induced two-dimensional [4+4]-cycloaddition polymerization on Au(111). Nat Commun 2021; 12:4557. [PMID: 34315909 PMCID: PMC8316434 DOI: 10.1038/s41467-021-24856-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 06/16/2021] [Indexed: 01/03/2023] Open
Abstract
Plasmon-induced chemical reactions (PICRs) have recently become promising approaches for highly efficient light-chemical energy conversion. However, an in-depth understanding of their mechanisms at the nanoscale still remains challenging. Here, we present an in-situ investigation by tip-enhanced Raman spectroscopy (TERS) imaging of the plasmon-induced [4+4]-cycloaddition polymerization within anthracene-based monomer monolayers physisorbed on Au(111), and complement the experimental results with density functional theory (DFT) calculations. This two-dimensional (2D) polymerization can be flexibly triggered and manipulated by the hot carriers, and be monitored simultaneously by TERS in real time and space. TERS imaging provides direct evidence for covalent bond formation with ca. 3.7 nm spatial resolution under ambient conditions. Combined with DFT calculations, the TERS results demonstrate that the lateral polymerization on Au(111) occurs by a hot electron tunneling mechanism, and crosslinks form via a self-stimulating growth mechanism. We show that TERS is promising to be plasmon-induced nanolithography for organic 2D materials.
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Affiliation(s)
- Feng Shao
- Department of Physics and Astronomy, National Graphene Institute, University of Manchester, Manchester, UK.
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
| | - Wei Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, Chang-Kung Chuang Institute, East China Normal University, Shanghai, People's Republic of China
| | - Weimin Yang
- Department of Physics, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Jiujiang Research Institute, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Zhilin Yang
- Department of Physics, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Jiujiang Research Institute, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Yao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, People's Republic of China
| | - Jinggang Lan
- Department of Chemistry, University of Zurich, Zurich, Switzerland.
| | - A Dieter Schlüter
- Department of Materials, Polymer Chemistry, ETH Zurich, Zurich, Switzerland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
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26
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Zhao C, Shi R, Wu J, Luo X, Liu X. Point-of-Care Detection of Salivary Nitrite Based on the Surface Plasmon-Assisted Catalytic Coupling Reaction of Aromatic Amines. BIOSENSORS 2021; 11:bios11070223. [PMID: 34356694 PMCID: PMC8301788 DOI: 10.3390/bios11070223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/28/2021] [Accepted: 06/28/2021] [Indexed: 05/05/2023]
Abstract
Rapid quantification of nitrite (NO2-) in food, drink and body fluids is of significant importance for both food safety and point-of-care (POA) applications. However, conventional nitrite analytical methods are complicated, constrained to sample content, and time-consuming. Inspired by a nitrite-triggered surface plasmon-assisted catalysis (SPAC) reaction, a rapid point-of-care detection salivary nitrate was developed in this work. NO2- ions can trigger the rapid conversion of p-aminothiophenol (PATP) to p,p'-dimercaptozaobenzene (DMAB) on gold nanoparticles (GNPs) under light illumination, and the emerged new bands at ca. 1140, 1390, 1432 cm-1 originating from DMAB can be used to the quantification of nitrite. Meanwhile, to make the method entirely suitable for on-site fast screen or point-of-care application, the technique is needed to be further optimized. The calibration graph for nitrates was linear in the range of 1-100 µM with a correlation coefficient of 0.9579. The limit of detection was 1 µM. The facile method could lead to a further understanding of the progression and treatment of periodontitis and to guide professionals in planning on-site campaigns to effectively control periodontal diseases.
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Affiliation(s)
- Chen Zhao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (C.Z.); (R.S.); (J.W.); (X.L.)
| | - Ruyi Shi
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (C.Z.); (R.S.); (J.W.); (X.L.)
| | - Jiale Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (C.Z.); (R.S.); (J.W.); (X.L.)
| | - Xuan Luo
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (C.Z.); (R.S.); (J.W.); (X.L.)
| | - Xiangjiang Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (C.Z.); (R.S.); (J.W.); (X.L.)
- College of Mechanical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
- Correspondence: ; Tel.: +86-571-88982820
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Abstract
ConspectusHot carriers are highly energetic species that can perform a large spectrum of chemical reactions. They are generated on the surfaces of nanostructures via direct interband, phonon-assisted intraband, and geometry-assisted decay of localized surface plasmon resonances (LSPRs), which are coherent oscillations of conductive electrons. LSPRs can be induced on the surface of noble metal (Ag or Au) nanostructures by illuminating the surfaces with electromagnetic irradiation. These noble metals can be coupled with catalytic metals, such as Pt, Pd, and Ru, to develop bimetallic nanostructures with unique catalytic activities. The plasmon-driven catalysis on bimetallic nanostructures is light-driven, which essentially enables green chemistry in organic synthesis. During the past decade, surface-enhanced Raman spectroscopy (SERS) has been actively utilized to study the mechanisms of plasmon-driven reactions on mono- and bimetallic nanostructures. SERS has provided a wealth of knowledge about the mechanisms of numerous plasmon-driven redox, coupling, and scissoring reactions. However, the nanoscale catalytic properties of both mono- and bimetallic nanostructures as well as the underlying physical cause of their catalytic reactivity and selectivity remained unclear for decades.In this Account, we focus on the most recent findings reported by our and other research groups that shed light on the nanoscale properties of mono- and bimetallic nanostructures. This information was revealed by tip-enhanced Raman spectroscopy (TERS), a modern analytical technique that has single-molecule sensitivity and subnanometer spatial resolution. TERS findings have shown that plasmonic reactivity and the selectivity of bimetallic nanostructures are governed by the nature of the catalytic metal and the strength of the rectified electric field on their surfaces. TERS has also revealed that the catalytic properties of bimetallic nanostructures directly depend on the interplay between the catalytic and plasmonic metals. We anticipate that these findings will be used to tailor synthetic approaches that are used to fabricate novel nanostructures with desired catalytic properties. The experimental and theoretical results discussed in this Account will facilitate a better understanding of TERS and explain artifacts that could be encountered upon TERS imaging of a large variety of samples. Consequently, plasmon-driven chemistry should be considered as an essential part of near-field microscopy.
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Affiliation(s)
- Zhandong Li
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
- The Institute for Quantum Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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28
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Nie R, Tao Y, Nie Y, Lu T, Wang J, Zhang Y, Lu X, Xu CC. Recent Advances in Catalytic Transfer Hydrogenation with Formic Acid over Heterogeneous Transition Metal Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04939] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Renfeng Nie
- College of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yuewen Tao
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yunqing Nie
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Tianliang Lu
- College of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jianshe Wang
- College of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yongsheng Zhang
- College of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiuyang Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chunbao Charles Xu
- Chemical and Biochemical Engineering, Western University, London, Ontario N6A 3K7 Canada
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29
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Hess C. New advances in using Raman spectroscopy for the characterization of catalysts and catalytic reactions. Chem Soc Rev 2021; 50:3519-3564. [PMID: 33501926 DOI: 10.1039/d0cs01059f] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gaining insight into the mode of operation of heterogeneous catalysts is of great scientific and economic interest. Raman spectroscopy has proven its potential as a powerful vibrational spectroscopic technique for a fundamental and molecular-level characterization of catalysts and catalytic reactions. Raman spectra provide important insight into reaction mechanisms by revealing specific information on the catalysts' (defect) structure in the bulk and at the surface, as well as the presence of adsorbates and reaction intermediates. Modern Raman instrumentation based on single-stage spectrometers allows high throughput and versatility in design of in situ/operando cells to study working catalysts. This review highlights major advances in the use of Raman spectroscopy for the characterization of heterogeneous catalysts made during the past decade, including the development of new methods and potential directions of research for applying Raman spectroscopy to working catalysts. The main focus will be on gas-solid catalytic reactions, but (photo)catalytic reactions in the liquid phase will be touched on if it appears appropriate. The discussion begins with the main instrumentation now available for applying vibrational Raman spectroscopy to catalysis research, including in situ/operando cells for studying gas-solid catalytic processes. The focus then moves to the different types of information available from Raman spectra in the bulk and on the surface of solid catalysts, including adsorbates and surface depositions, as well as the use of theoretical calculations to facilitate band assignments and to describe (resonance) Raman effects. This is followed by a presentation of major developments in enhancing the Raman signal of heterogeneous catalysts by use of UV resonance Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), and shell-isolated nanoparticle surface-enhanced Raman spectroscopy (SHINERS). The application of time-resolved Raman studies to structural and kinetic characterization is then discussed. Finally, recent developments in spatially resolved Raman analysis of catalysts and catalytic processes are presented, including the use of coherent anti-Stokes Raman spectroscopy (CARS) and tip-enhanced Raman spectroscopy (TERS). The review concludes with an outlook on potential future developments and applications of Raman spectroscopy in heterogeneous catalysis.
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Affiliation(s)
- Christian Hess
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, 64287, Darmstadt, Germany.
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30
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Xu J, Yun Q, Wang C, Li M, Cheng S, Ruan Q, Zhu X, Kan C. Gold nanobipyramid-embedded silver-platinum hollow nanostructures for monitoring stepwise reduction and oxidation reactions. NANOSCALE 2020; 12:23663-23672. [PMID: 33216083 DOI: 10.1039/d0nr03315d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal hollow nanostructures based on gold nanobipyramids (Au NBPs) are of great interest for the combination of tunable plasmonic resonances and excellent physicochemical properties. Based on the core-shell Au NBP@Ag nanorods with desired sizes, herein we reported the synthesis and growth mechanism of Au NBP-embedded AgPt hollow nanostructures with tunable thickness and size. The Au NBP@AgPt nanoframes were obtained at lower temperature, in which cetyltrimethylammonium bromine (CTAB) was applied as a capping agent to guide the deposition of Pt atoms on the edges and corners of Au NBPs@Ag nanorods. With the increase of reaction temperature, the Au NBP@AgPt nanoframes convert into nanocages due to the atomic migration to the surfaces. The surface plasmon resonance of the Au NBP@AgPt hollow nanostructure shifts from red to blue, which is ascribed to the changes in coverage area and location site of the AgPt alloy. When CTAB was replaced by cetyltrimethylammonium chloride (CTAC), Au NBP@AgPt nanocages dominate the product. The surface roughness and thickness of the nanocages can be controlled by the temperature and the amount of Pt precursor. Moreover, Au NBP@AgPt hollow nanostructures show excellent surface-enhanced Raman scattering and exhibit remarkable stability in harsh environments. Taking into account the advantages of the plasmonic property (Au NBPs), catalytic activity (Pt) and plasmon-enhanced signal (Ag), the Au NBP@AgPt hollow nanostructures are a promising candidate for technological applications in catalytic reactions.
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Affiliation(s)
- Juan Xu
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
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31
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Święch D, Paluszkiewicz C, Piergies N, Pięta E, Kollbek K, Kwiatek WM. Micro- and Nanoscale Spectroscopic Investigations of Threonine Influence on the Corrosion Process of the Modified Fe Surface by Cu Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4482. [PMID: 33050390 PMCID: PMC7600280 DOI: 10.3390/ma13204482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 12/23/2022]
Abstract
The work presents a comprehensive vibrational analysis of the process of adsorption of threonine (Thr) onto an Fe surface with deposited Cu nanoparticles (NPs) (of about 4-5 nm in size) in a corrosive environment. The application of surface-enhanced Raman spectroscopy (SERS) and surface-enhanced infrared absorption spectroscopy (SEIRA) provides the opportunity for detailed description of adsorption geometry of amino acid onto a metal surface. The combination of conventional infrared spectroscopy (IR) with atomic force microscopy (AFM) resulted in a nano-SEIRA technique which made it possible to provide a precise description of adsorbate binding to the metal surface. The studies presented confirmed that there is a very good correlation between the spectra recorded by the SERS, SEIRA, and nano-SEIRA techniques. Threonine significantly influenced the process of corrosion of the investigated surface due to the existing strong interaction between the protonated amine and carboxylate groups and the CuNPs deposited onto the Fe surface. In addition, the application of two polarization modulations (s and p) in nano-SEIRA allows subtle changes to be observed in the molecule geometry upon adsorption, with the carboxylate group of Thr being almost horizontally oriented onto the metal surface; whereas the amine group that contains nitrogen is oriented perpendicular to this surface.
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Affiliation(s)
- Dominika Święch
- Faculty of Foundry Engineering, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Czesława Paluszkiewicz
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland; (C.P.); (N.P.); (E.P.); (W.M.K.)
| | - Natalia Piergies
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland; (C.P.); (N.P.); (E.P.); (W.M.K.)
| | - Ewa Pięta
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland; (C.P.); (N.P.); (E.P.); (W.M.K.)
| | - Kamila Kollbek
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland;
| | - Wojciech M. Kwiatek
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland; (C.P.); (N.P.); (E.P.); (W.M.K.)
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32
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Huang C, Li A, Chen X, Wang T. Understanding the Role of Metal-Organic Frameworks in Surface-Enhanced Raman Scattering Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2004802. [PMID: 32985111 DOI: 10.1002/smll.202004802] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/18/2020] [Indexed: 05/14/2023]
Abstract
Metal-organic frameworks (MOFs), built from organic linkers and metal ions/clusters, have emerged as highly promising materials for wide applications. Combining highly porous crystalline MOFs with the surface-enhanced Raman scattering (SERS) technique can achieve unprecedented advantages of high selectivity, high sensitivity, and expedience in analysis and detection. In this critical review, the aim is to present a comprehensive review of recent advances in understanding of the roles of MOFs in MOF-SERS systems, particularly their structure-to-property correlation. Key examples are selected from representative literature to illustrate critical concepts and the MOF-based property-dependent applications are particularly emphasized. Finally, the barriers, future trends, and prospects for further advances in MOF-SERS platforms are also discussed.
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Affiliation(s)
- Chuanhui Huang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, #2 Zhongguancun, North First Street, Beijing, 100190, P. R. China
| | - Ailin Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, #2 Zhongguancun, North First Street, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiangyu Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, #2 Zhongguancun, North First Street, Beijing, 100190, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, #2 Zhongguancun, North First Street, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Life and Health Research Institute, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China
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33
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Liu J, Cai ZY, Sun WX, Wang JZ, Shen XR, Zhan C, Devasenathipathy R, Zhou JZ, Wu DY, Mao BW, Tian ZQ. Plasmonic Hot Electron-Mediated Hydrodehalogenation Kinetics on Nanostructured Ag Electrodes. J Am Chem Soc 2020; 142:17489-17498. [PMID: 32941020 DOI: 10.1021/jacs.0c07027] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An attractive field of plasmon-mediated chemical reactions (PMCRs) is developing rapidly, but there is still incomplete understanding of how to control the kinetics of such a reaction related to hot carriers. Here, we chose 8-bromoadenine (8BrAd) as a probe molecule of hot electrons to investigate the influence of the electrode potential, laser wavelength, and power on the PMCR kinetics on silver nanoparticle-modified silver electrodes. Plasmonic hot electron-mediated cleavage of the C-Br bond in 8BrAd has been investigated by combining in situ electrochemical surface-enhanced Raman spectroscopy and density functional theory calculations. The experimental and theoretical results reveal that the energy position of plasmon relaxation-generated hot electrons can be modulated conveniently by applied potentials and laser light. This allows the proposal of a mechanism of modulating the matching energy of the hot electron of plasmon relaxation to promote the efficiency of PMCRs in electrochemical interfaces. Our work will be helpful to design surface plasmon resonance photoelectrochemical reactions on metal electrode surfaces of nanostructures with higher efficiency.
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Affiliation(s)
- Jia Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Zhuan-Yun Cai
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Wei-Xin Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Jia-Zheng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Xiao-Ru Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Chao Zhan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Rajkumar Devasenathipathy
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Jian-Zhang Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Bing-Wei Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China
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34
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Zalduendo MM, Oestreicher V, Langer J, Liz-Marzán LM, Angelomé PC. Monitoring Chemical Reactions with SERS-Active Ag-Loaded Mesoporous TiO 2 Films. Anal Chem 2020; 92:13656-13660. [PMID: 32951419 DOI: 10.1021/acs.analchem.0c03310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Monitoring chemical reactions that occur in small spaces or confined environments is challenging. Surface-enhanced Raman scattering (SERS) spectroscopy offers the unique possibility to monitor spectral changes with high sensitivity and time resolution. Herein, we report the application of composite mesoporous TiO2 films loaded with Ag nanoparticles (NPs) to track in situ chemical processes in real time. In particular, the AgNPs@TiO2 system was employed to monitor two chemical reactions: one occurring on the Ag NPs surface and another taking place in the surrounding solution. In the first case, we monitored the decarboxylation reaction of 4-mercaptobenzoic acid on Ag NPs, which allowed us to identify the conditions that favor it. In the second case, we studied the pH evolution in the nanocavities during a homogeneous alkalization process driven by chloride-assisted glycidol rupture (the Epoxide Route) and compared it with pH measurements by conventional techniques. We therefore demonstrated that the proposed nanodevice provides an excellent performance to monitor dynamic processes occurring either inside the material or in the solution in which it is immersed.
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Affiliation(s)
- M Mercedes Zalduendo
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
| | - Víctor Oestreicher
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina.,Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Judith Langer
- CIC biomaGUNE and CIBER-BBN, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Luis M Liz-Marzán
- CIC biomaGUNE and CIBER-BBN, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain.,Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Paula C Angelomé
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
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35
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Shi S, Zhang Y, Ahn J, Qin D. Revitalizing silver nanocrystals as a redox catalyst by modifying their surface with an isocyanide-based compound. Chem Sci 2020; 11:11214-11223. [PMID: 34094362 PMCID: PMC8162456 DOI: 10.1039/d0sc04385k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 09/16/2020] [Indexed: 11/21/2022] Open
Abstract
Silver is an excellent catalyst for oxidation reactions such as ethylene epoxidation, but it shows limited activity toward reduction reactions. Here we report a strategy to revitalize Ag nanocrystals as a redox catalyst for the production of an aromatic azo compound by modifying their surface with an isocyanide-based compound. We also leverage in situ fingerprint spectroscopy to acquire molecular insights into the reaction mechanism by probing the vibrational modes of all chemical species at the catalytic surface with surface-enhanced Raman spectroscopy. We establish that binding of isocyanide to Ag nanocrystals makes it possible for Ag to extract the oxygen atoms from the nitro-groups of nitroaromatics and then use these atoms to oxidize isocyanide to isocyanate. Concurrently, the coupling between two adjacent deoxygenated nitroaromatic molecules leads to the formation of an aromatic azo compound.
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Affiliation(s)
- Shi Shi
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Yadong Zhang
- School of Chemistry and Biochemistry, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Jaewan Ahn
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Dong Qin
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
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36
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Zhao Y, Chang X, Malkani AS, Yang X, Thompson L, Jiao F, Xu B. Speciation of Cu Surfaces During the Electrochemical CO Reduction Reaction. J Am Chem Soc 2020; 142:9735-9743. [PMID: 32338904 DOI: 10.1021/jacs.0c02354] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cu-catalyzed selective electrocatalytic upgrading of carbon dioxide/monoxide to valuable multicarbon oxygenates and hydrocarbons is an attractive strategy for combating climate change. Despite recent research on Cu-based catalysts for the CO2 and CO reduction reactions, surface speciation of the various types of Cu surfaces under reaction conditions remains a topic of discussion. Herein, in situ surface-enhanced Raman spectroscopy (SERS) is employed to investigate the speciation of four commonly used Cu surfaces, i.e., Cu foil, Cu micro/nanoparticles, electrochemically deposited Cu film, and oxide-derived Cu, at potentials relevant to the CO reduction reaction in an alkaline electrolyte. Multiple oxide and hydroxide species exist on all Cu surfaces at negative potentials, however, the speciation on the Cu foil is distinct from that on micro/nanostructured Cu. The surface speciation is demonstrated to correlate with the initial degree of oxidation of the Cu surface prior to the exposure to negative potentials. Combining reactivity and spectroscopic results on these four types of Cu surfaces, we conclude that the oxygen containing surface species identified by Raman spectroscopy are unlikely to be active in facilitating the formation of C2+ oxygenates in the CO reduction reaction.
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Affiliation(s)
- Yaran Zhao
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Xiaoxia Chang
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Arnav S Malkani
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Xuan Yang
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Levi Thompson
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Feng Jiao
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Bingjun Xu
- Center for Catalytic Science and Technology, Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
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37
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Qiu L, Pang GA, Zheng G, Bauer D, Wieland K, Haisch C. Kinetic and Mechanistic Investigation of the Photocatalyzed Surface Reduction of 4-Nitrothiophenol Observed on a Silver Plasmonic Film via Surface-Enhanced Raman Scattering. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21133-21142. [PMID: 32286058 DOI: 10.1021/acsami.0c05977] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hot electrons generated by photoinduced plasmon decay from a plasmonic metal surface can reduce 4-nitrothiophenol (4-NTP) to 4-aminothiophenol (4-ATP). Compared to the reduction with a reducing agent such as sodium borohydride, surface-enhanced Raman scattering (SERS) measurements were performed here to elucidate the complex molecular mechanism of the reduction in the presence of halide ions and hydrogen ions. The SERS measurements were performed using a simply prepared silver plasmonic film (AgPF), which enables monitoring of the reaction under different conditions at a solid-liquid surface and eliminates the need for the use of a reducing agent. As the concentration of H+ and Cl- could be controlled, the observation of the reaction under a systematic set of conditions was possible. Based on the kinetic traces of the intermediates, a reaction mechanism for the 4-NTP to 4-ATP reduction is suggested. Rate constants for the individual reactions are presented that fit the measured kinetic traces, and the role of hydrogen in each reaction step is characterized. This work provides clarification on the molecular transformation directly using protons as the hydrogen source and demonstrates an effective method of applying a simple and low-cost silver surface catalyst for SERS studies. Moreover, the monitoring of Cl--concentration-dependent spectra provides insight into the hot-electron conversion process during the photoreduction and strongly supports the formation of AgCl for the activation of H+.
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Affiliation(s)
- Li Qiu
- Chair of Analytical Chemistry, Technische Universität München, Marchioninistr. 17, D-81377 Munich, Germany
| | - Genny A Pang
- Chair of Analytical Chemistry, Technische Universität München, Marchioninistr. 17, D-81377 Munich, Germany
| | - Guangchao Zheng
- School of Physics and Microelectronics,, Zhengzhou University, 450001 Zhengzhou, Henan, People's Republic of China
| | - David Bauer
- Chair of Analytical Chemistry, Technische Universität München, Marchioninistr. 17, D-81377 Munich, Germany
| | - Karin Wieland
- Chair of Analytical Chemistry, Technische Universität München, Marchioninistr. 17, D-81377 Munich, Germany
| | - Christoph Haisch
- Chair of Analytical Chemistry, Technische Universität München, Marchioninistr. 17, D-81377 Munich, Germany
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38
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Huang YF, Wang W, Guo HY, Zhan C, Duan S, Zhan D, Wu DY, Ren B, Tian ZQ. Microphotoelectrochemical Surface-Enhanced Raman Spectroscopy: Toward Bridging Hot-Electron Transfer with a Molecular Reaction. J Am Chem Soc 2020; 142:8483-8489. [DOI: 10.1021/jacs.0c02523] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yi-Fan Huang
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Wang
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hong-Yu Guo
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chao Zhan
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Sai Duan
- MOE Key Laboratory of Computational Physical Sciences, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Dongping Zhan
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - De-Yin Wu
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bin Ren
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
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39
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Shi S, Qin D. Bifunctional Metal Nanocrystals for Catalyzing and Reporting on Chemical Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201909615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Shi Shi
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Dong Qin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA
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40
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Hao N, Chen M, Yang H, Li R, Liu Q, Zhu Y, Wang L, Peng M, Xiang J, Chen X. “Pomegranate-Like” Plasmonic Nanoreactors with Accessible High-Density Hotspots for in Situ SERS Monitoring of Catalytic Reactions. Anal Chem 2020; 92:4115-4122. [DOI: 10.1021/acs.analchem.0c00069] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Naiying Hao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Miao Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Ruili Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Qi Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yuqiu Zhu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Lumin Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Mei Peng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Juan Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xiaoqing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, Hunan, China
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41
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Litti L, Reguera J, García de Abajo FJ, Meneghetti M, Liz-Marzán LM. Manipulating chemistry through nanoparticle morphology. NANOSCALE HORIZONS 2019; 5:102-108. [PMID: 32756696 DOI: 10.1039/c9nh00456d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We demonstrate that the protonation chemistry of molecules adsorbed at nanometer distances from the surface of anisotropic gold nanoparticles can be manipulated through the effect of surface morphology on the local proton density of an organic coating. Direct evidence of this remarkable effect was obtained by monitoring surface-enhanced Raman scattering (SERS) from mercaptobenzoic acid and 4-aminobenzenethiol molecules adsorbed on gold nanostars. By smoothing the initially sharp nanostar tips through a mild thermal treatment, changes were induced on protonation of the molecules, which can be observed through changes in the measured SERS spectra. These results shed light on the local chemical environment near anisotropic colloidal nanoparticles and open an alternative avenue to actively control chemistry through surface morphology.
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Affiliation(s)
- Lucio Litti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Javier Reguera
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain. and CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain and Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - F Javier García de Abajo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain and ICREA-Institució Catalana de Recerca I Estudis Avanca[combining cedilla]ts, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain and Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
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42
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Shi S, Qin D. Bifunctional Metal Nanocrystals for Catalyzing and Reporting on Chemical Reactions. Angew Chem Int Ed Engl 2019; 59:3782-3792. [DOI: 10.1002/anie.201909615] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Shi Shi
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Dong Qin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA
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43
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Lu H, Zhu L, Lu Y, Su J, Zhang R, Cui Y. Manipulating "Hot Spots" from Nanometer to Angstrom: Toward Understanding Integrated Contributions of Molecule Number and Gap Size for Ultrasensitive Surface-Enhanced Raman Scattering Detection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39359-39368. [PMID: 31565918 DOI: 10.1021/acsami.9b13518] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Narrower gaps between metal nanoparticles (so-called "hot spots") in surface-enhanced Raman scattering (SERS) substrates contribute to stronger electromagnetic (EM) enhancement; however, the accompanying steric effect hinders analyte molecules entering hot spots to access the benefit. To comprehensively understand integrated contributions of the gap size and molecule number accommodated in hot spots and then optimize design of SERS substrates, the thermal shrinking method was employed to manipulate hot spots and the "hottest zone" was defined to evaluate the integrated contributions to SERS intensity of the two factors. In the conventional shrink-adsorption mode, the contributions of the molecule number and gap size are competitive when the gap width is comparable with the target molecule size, which leads to oscillating behavior of SERS intensity versus gap size, and it is analyte molecule size dependent. This result suggests that engineering hot spots should be target molecule directed to achieve ultrasensitive detection. In the proposed adsorption-shrink mode, the contributions of the molecule number and gap size are synergistic, which makes the detection ability of the adsorption-shrink mode attains a single-molecule (SM) level. Excellent performance of the adsorption-shrink SERS strategy benefits detection of trace level pollutants in complex environments. Detection ranges for contaminants with different metal affinity, such as thiram, malachite green (MG), and formaldehyde, are as low as parts per billion, even down to parts per trillion.
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Affiliation(s)
- Hui Lu
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Li Zhu
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Yu Lu
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Jingting Su
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Ruohu Zhang
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Yiping Cui
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
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Zhang Y, Hu Y, Li G, Zhang R. A composite prepared from gold nanoparticles and a metal organic framework (type MOF-74) for determination of 4-nitrothiophenol by surface-enhanced Raman spectroscopy. Mikrochim Acta 2019; 186:477. [PMID: 31250191 DOI: 10.1007/s00604-019-3618-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 06/15/2019] [Indexed: 12/13/2022]
Abstract
Core-shell nanoparticles (NPs) consisting of a gold core and a metal-organic framework shell (type MOF-74) were synthesized via one-pot synthesis. The NPs exhibit highly sensitive and stable SERS activity for the detection of 4-nitrothiophenol, with a specific band at 1337 cm-1. The method has a linear response in 0.10-10 μmol·L-1 analyte concentration range and a lower detection limit of 69 nmol·L-1. The potential application of this novel SERS substrate was evaluated by two model reactions involving 4-nitrothiophenol. The first involves in-situ SERS monitoring of the surface plasmon-induced nitration of aromatic rings without adding conventional acid catalyst. The second involves the photocatalytic reduction of 4-nitrothiophenol to 4-thioaminophenol in the presence of Au/MOF-74 under 785-nm laser irradiation. The plasmon-assisted dimerization of 4-nitrothiophenol to form 4,4'-dimercaptoazobenzene can also be monitored simultaneously. Graphical abstract Schematic presentation of a nanoparticle SERS substrate consisting of gold core and MOF-74 shell, which was applied to detection of 4-nitrothiophenol. The Au/MOF-74 was successfully used for in-situ monitoring of two model reactions involving 4-nitrothiophenol by SERS.
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Affiliation(s)
- Yanshu Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Runkun Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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45
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A Review on the Current Knowledge and Prospects for the Development of Improved Detection Methods for Soil-Transmitted Helminth Ova for the Safe Reuse of Wastewater and Mitigation of Public Health Risks. WATER 2019. [DOI: 10.3390/w11061212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Climate change, increase in population and scarcity of freshwater have led to a global demand for wastewater reuse in irrigation. However, wastewater has to be treated in order to minimize the presence of pathogens, in particular, the ova of soil-transmitted helminthes (STHs). Limiting the transmission via removal of STH ova, accurate assessment of risks and minimizing the exposure to the public have been recommended by health regulators. The World Health Organization (WHO) guideline specifies a limit of ≤1 ova/L for safe wastewater reuse. Additionally, the Australian Guidelines for Water recycling (AGWR) recommend a hydraulic retention time of over 25 days in a lagoon or stabilization pond to ensure a 4 log reduction value of helminth ova and to mitigate soil-transmitted helminths associated risks to humans. However, the lack of fast and sensitive methods for assessing the concentration of STH ova in wastewater poses a considerable challenge for an accurate risk assessment. Consequently, it has been difficult to control soil-transmitted helminthiasis despite effective mass drug administration. This limitation can be overcome with the advent of novel techniques for the detection of helminth ova. Therefore, this review presents an assessment of the current methods to detect the viable ova of soil-transmitted helminths in wastewater. Furthermore, the review focuses on the perspectives for the emerging state-of-the-art research and developments that have the potential to replace currently available conventional and polymerase chain reaction based methods and achieve the guidelines of the WHO in order to allow the safe reuse of wastewater for non-potable applications, thereby minimizing public health risks.
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46
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Schürmann R, Ebel K, Nicolas C, Milosavljević AR, Bald I. Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol. J Phys Chem Lett 2019; 10:3153-3158. [PMID: 31117676 PMCID: PMC6569622 DOI: 10.1021/acs.jpclett.9b00848] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Abstract
Hot-electron-induced reactions are more and more recognized as a critical and ubiquitous reaction in heterogeneous catalysis. However, the kinetics of these reactions is still poorly understood, which is also due to the complexity of plasmonic nanostructures. We determined the reaction rates of the hot-electron-mediated reaction of 4-nitrothiophenol (NTP) on gold nanoparticles (AuNPs) using fractal kinetics as a function of the laser wavelength and compared them with the plasmonic enhancement of the system. The reaction rates can be only partially explained by the plasmonic response of the NPs. Hence, synchrotron X-ray photoelectron spectroscopy (XPS) measurements of isolated NTP-capped AuNP clusters have been performed for the first time. In this way, it was possible to determine the work function and the accessible valence band states of the NP systems. The results show that besides the plasmonic enhancement, the reaction rates are strongly influenced by the local density of the available electronic states of the system.
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Affiliation(s)
- Robin Schürmann
- Physical Chemistry,
Institute of
Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
- Department of Analytical Chemistry
BAM, Federal Institute of Material Research
and Testing, Richard-Willstätter-Str.
11, 12489 Berlin, Germany
| | - Kenny Ebel
- Physical Chemistry,
Institute of
Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
- Department of Analytical Chemistry
BAM, Federal Institute of Material Research
and Testing, Richard-Willstätter-Str.
11, 12489 Berlin, Germany
| | - Christophe Nicolas
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint
Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | | | - Ilko Bald
- Physical Chemistry,
Institute of
Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
- Department of Analytical Chemistry
BAM, Federal Institute of Material Research
and Testing, Richard-Willstätter-Str.
11, 12489 Berlin, Germany
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47
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Guan Y, Wang Z, Gu P, Wang Y, Zhang W, Zhang G. An in situ SERS study of plasmonic nanochemistry based on bifunctional "hedgehog-like" arrays. NANOSCALE 2019; 11:9422-9428. [PMID: 31038523 DOI: 10.1039/c9nr01297d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An in situ SERS (surface-enhanced Raman scattering) study of plasmonic nanochemistry is realized on hierarchical Ag nanocone arrays ("hedgehog-like" arrays, denoted as HLAs) without any conventional catalyst. Ag nanocones are designed on 3D polystyrene (PS) microsphere arrays to provide a high density of hot spots within the laser-illumination area. Both experiments and numerical simulations demonstrate that the remarkable SERS and plasmonic catalytic performance of HLAs arise from the improved utilization rate of irradiation light in the third dimension and the tip enhancement effect of the nanocone arrays. On further combining their inherent SERS and catalytic properties, the in situ SERS study of plasmon-induced photocatalytic degradation reactions is realized. In this paper, not only the decomposition of methylene blue (MB) molecules is observed, but also the detailed molecular mechanisms of the reactions are revealed. Based on the bifunctional properties of the membrane-material interface, the HLAs are believed to be promising candidates in SERS and in situ SERS studies.
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Affiliation(s)
- Yuduo Guan
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P.R. China.
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48
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Wang Y, Fang L, Gong M, Deng Z. Chemically modified nanofoci unifying plasmonics and catalysis. Chem Sci 2019; 10:5929-5934. [PMID: 31360398 PMCID: PMC6582755 DOI: 10.1039/c9sc00403c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/03/2019] [Indexed: 12/20/2022] Open
Abstract
Chemical modifiability is achieved for self-assembled plasmonic nanogaps to enable charge transfer plasmon resonance and unified plasmonic and catalytic functions.
A plasmonic nanofocus, often in the form of a nanogap, is capable of concentrating light in a nanometric volume. The greatly enhanced electromagnetic field offers many opportunities in physics and chemistry. However, the lack of a method to fine-tune the chemical activities of the nanofocus has severely limited its application. Here we communicate an intriguing class of chemically modified nanofoci (CMNFs) that are able to address this challenge. Our results successfully demonstrate a possibility to functionalize the nanosized, mass-transport-restricted nanogap (nanofocus) of a dimeric gold nanoparticle assembly with homo-(Au) and heterogeneous (Ag, Pt, and Pd) materials. The as-produced structures with conductive Au and Ag junctions generate a novel form of charge transfer plasmon (CTP) with continuously tunable frequency covering the visible and near-infrared domains. In addition, the Ag materials can be displaced by catalytic Pt and Pd metals while still maintaining a tightly focused electromagnetic field. These hybrid structures with unified catalytic and plasmonic properties enable real-time, on-site probing of catalytic conversions at the nanofocus by plasmon-enhanced Raman scattering. The chemically/optically engineered CMNFs represent the simplest function-integrated nanodevices for plasmonics, sensing, and catalysis. Our work not only realizes chemical CTP reshaping, but also allows chemical functionalization into an intensified plasmonic near-field. The latter may enable unconventional chemical reactions driven by the catalytically functionalized, strongly boosted light field.
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Affiliation(s)
- Yueliang Wang
- CAS Key Laboratory of Soft Matter Chemistry , Hefei National Research Center for Physical Sciences at the Microscale , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Lingling Fang
- CAS Key Laboratory of Soft Matter Chemistry , Hefei National Research Center for Physical Sciences at the Microscale , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Ming Gong
- Engineering and Materials Science Experiment Center , University of Science and Technology of China , Hefei , Anhui 230027 , China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry , Hefei National Research Center for Physical Sciences at the Microscale , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
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Pilot R, Signorini R, Durante C, Orian L, Bhamidipati M, Fabris L. A Review on Surface-Enhanced Raman Scattering. BIOSENSORS 2019; 9:E57. [PMID: 30999661 PMCID: PMC6627380 DOI: 10.3390/bios9020057] [Citation(s) in RCA: 316] [Impact Index Per Article: 63.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 12/23/2022]
Abstract
Surface-enhanced Raman scattering (SERS) has become a powerful tool in chemical, material and life sciences, owing to its intrinsic features (i.e., fingerprint recognition capabilities and high sensitivity) and to the technological advancements that have lowered the cost of the instruments and improved their sensitivity and user-friendliness. We provide an overview of the most significant aspects of SERS. First, the phenomena at the basis of the SERS amplification are described. Then, the measurement of the enhancement and the key factors that determine it (the materials, the hot spots, and the analyte-surface distance) are discussed. A section is dedicated to the analysis of the relevant factors for the choice of the excitation wavelength in a SERS experiment. Several types of substrates and fabrication methods are illustrated, along with some examples of the coupling of SERS with separation and capturing techniques. Finally, a representative selection of applications in the biomedical field, with direct and indirect protocols, is provided. We intentionally avoided using a highly technical language and, whenever possible, intuitive explanations of the involved phenomena are provided, in order to make this review suitable to scientists with different degrees of specialization in this field.
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Affiliation(s)
- Roberto Pilot
- Department of Chemical Sciences, University of Padova, 35131 Padova, Italy.
- Consorzio INSTM, via G. Giusti 9, 50121 Firenze, Italy.
| | - Raffaella Signorini
- Department of Chemical Sciences, University of Padova, 35131 Padova, Italy.
- Consorzio INSTM, via G. Giusti 9, 50121 Firenze, Italy.
| | - Christian Durante
- Department of Chemical Sciences, University of Padova, 35131 Padova, Italy.
- Consorzio INSTM, via G. Giusti 9, 50121 Firenze, Italy.
| | - Laura Orian
- Department of Chemical Sciences, University of Padova, 35131 Padova, Italy.
- Consorzio INSTM, via G. Giusti 9, 50121 Firenze, Italy.
| | - Manjari Bhamidipati
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA.
| | - Laura Fabris
- Department of Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA.
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50
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Tailoring the Size and Shape of Colloidal Noble Metal Nanocrystals as a Valuable Tool in Catalysis. CATALYSIS SURVEYS FROM ASIA 2019. [DOI: 10.1007/s10563-019-09271-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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