1
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Liao XL, Ran X, Wang D, Bian SD, Liang ZH, Xiao YH, Wu XW, Zhou JZ, Wu DY, Tian ZQ. How the secrets behind photocurrents are revealed in Ag-TiO 2 heterostructures-based plasmonic photoelectrochemical systems: A collaborative approach of EC-SERS and photoelectrochemical methods. J Colloid Interface Sci 2024; 674:766-777. [PMID: 38955008 DOI: 10.1016/j.jcis.2024.06.203] [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: 04/23/2024] [Revised: 06/08/2024] [Accepted: 06/26/2024] [Indexed: 07/04/2024]
Abstract
Plasmon-mediated chemical reactions (PMCR) have garnered growing interest as a promising concept for photocatalysis. However, in electrochemical systems at solid-liquid interfaces, the photo-induced charge transfer on the surface of metal-semiconductor heterostructures involves complex processes and mechanisms, which are still poorly understood. We explore the plasmon-mediated carrier transfer mechanism and the synergistic effect of light and electric fields on Ag-TiO2 heterostructures, through a combination of electrochemical surface-enhanced Raman spectroscopy and photoelectrochemical methods, with para-aminothiophenol (PATP) serving as a probe molecule. The results show that photocurrent responses are dependent on not only excitation wavelengths and applied potentials, but also the irreversibility of redox. The relationship between photocurrent responses and the chemical transformation between PATP and 4,4'-dimercaptoazobenzene is established, reflecting the photo-induced charge transfer of the heterostructures. The collaboration of spectroscopic and photoelectrochemical methods provide valuable insights into the chemical transformation and kinetic information of adsorbed molecules on the heterostructure during PMCR, offering opportunities for modulating of photocatalytic activities of hot carriers.
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Affiliation(s)
- Xiao-Li Liao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xue Ran
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Dan Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Si-Da Bian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi-Hao Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yuan-Hui Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin-Wei Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jian-Zhang Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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2
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Kohila Rani K, Xiao YH, Devasenathipathy R, Gao K, Wang J, Kang X, Zhu C, Chen H, Jiang L, Liu Q, Qiao F, Li Z, Wu DY, Lu G. Raman Monitoring of the Electro-Optical Synergy-Induced Enhancements in Carbon-Bromine Bond Cleavage, Reaction Rate, and Product Selectivity of p-Bromothiophenol. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27831-27840. [PMID: 38757708 DOI: 10.1021/acsami.4c01259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Electro-optical synergy has recently been targeted to improve the separation of hot carriers and thereby further improve the efficiency of plasmon-mediated chemical reactions (PMCRs). However, the electro-optical synergy in PMCRs needs to be more deeply understood, and its contribution to bond dissociation and product selectivity needs to be clarified. Herein, the electro-optical synergy in plasmon-mediated reduction of p-bromothiophenol (PBTP) was studied on a plasmonic nanostructured silver electrode using in situ Raman spectroscopy and theoretical calculations. It was found that the electro-optical synergy-induced enhancements in the cleavage of carbon-bromine bonds, reaction rate, and product selectivity (4,4'-biphenyl dithiol vs thiophenol) were largely affected by the applied bias, laser wavelength, and laser power. The theoretical simulation further clarified that the strong electro-optical synergy is attributed to the matching of energy band diagrams of the plasmonic silver with those of the adsorbed PBTP molecules. A deep understanding of the electro-optical synergy in PBTP reduction and the clarification of the mechanism will be highly beneficial for the development of other highly efficient PMCRs.
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Affiliation(s)
- Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yuan-Hui Xiao
- 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, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kun Gao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jiazheng 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, PR China
| | - Xing Kang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Chengcheng Zhu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haonan Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qinghua Liu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Furong Qiao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR 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, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
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3
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Li X, Sun B, Chen Q, Lee HK, Shi B, Ren H, Li H, Ma Z, Fu M. Integrating photothermal and plasmonic catalysis induced by near-infrared light for efficient reduction of 4-nitrophenol. J Colloid Interface Sci 2024; 660:726-734. [PMID: 38271808 DOI: 10.1016/j.jcis.2024.01.136] [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: 11/22/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
The reduction of 4-nitrophenol (4-NP) into 4-aminophenol (4-AP) is an important reaction in both chemical manufacturing and environmental protection. The design of a highly active, multifunctional and reusable catalyst for efficient 4-NP decontamination/valorization is therefore crucial to bring in economic and societal benefits. Herein, we achieve an efficient plasmonic-photothermal catalyst of Pd nanoparticles by growing them on graphene-polyelectrolytes self-assembly nanolayers via an in situ green reduction approach using polyelectrolyte as the reductant. The as-fabricated catalyst shows high catalytic behaviors and good stability (maintained over 92.5 % conversion efficiency after ten successive cycles) for 4-NP reduction under ultra-low catalyst dose. The rate constant and turnover frequency were calculated at 0.197 min-1 and 7.79 mmol g-1 min-1, respectively, which were much higher than those of most reported catalysts. Moreover, the as-prepared catalyst exhibited excellent photothermal conversion efficiency of ∼77 % and boosted 4-NP reduction by ∼2-fold under near-infrared irradiation (NIR). This study provides valuable insights into the design of greener catalytic materials and facilitates the development of multifunctional plasmonic-photothermal catalysts for diverse environmental, chemical, and energy applications using NIR.
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Affiliation(s)
- Xiangming Li
- School of Materials Sciences and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Bo Sun
- School of Materials Sciences and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Qingpeng Chen
- School of Materials Sciences and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Hiang Kwee Lee
- Division of Chemistry and Biological Chemistry, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
| | - Bo Shi
- School of Materials Sciences and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Hegang Ren
- School of Materials Sciences and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Haitao Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Zequn Ma
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Meng Fu
- School of Materials Sciences and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China.
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4
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Wei Y, Fan X, Chen D, Zhu X, Yao L, Zhao X, Tang X, Wang J, Zhang Y, Qiu T, Hao Q. Probing Oxidation Mechanisms in Plasmonic Catalysis: Unraveling the Role of Reactive Oxygen Species. NANO LETTERS 2024; 24:2110-2117. [PMID: 38290214 DOI: 10.1021/acs.nanolett.3c04979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Plasmon-induced oxidation has conventionally been attributed to the transfer of plasmonic hot holes. However, this theoretical framework encounters challenges in elucidating the latest experimental findings, such as enhanced catalytic efficiency under uncoupled irradiation conditions and superior oxidizability of silver nanoparticles. Herein, we employ liquid surface-enhanced Raman spectroscopy (SERS) as a real-time and in situ tool to explore the oxidation mechanisms in plasmonic catalysis, taking the decarboxylation of p-mercaptobenzoic acid (PMBA) as a case study. Our findings suggest that the plasmon-induced oxidation is driven by reactive oxygen species (ROS) rather than hot holes, holding true for both the Au and Ag nanoparticles. Subsequent investigations suggest that plasmon-induced ROS may arise from hot carriers or energy transfer mechanisms, exhibiting selectivity under different experimental conditions. The observations were substantiated by investigating the cleavage of the carbon-boron bonds. Furthermore, the underlying mechanisms were clarified by energy level theories, advancing our understanding of plasmonic catalysis.
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Affiliation(s)
- Yunjia Wei
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xingce Fan
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Dexiang Chen
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xiangnan Zhu
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Lei Yao
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xing Zhao
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xiao Tang
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Jiawei Wang
- School of Electronic and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, People's Republic of China
| | - Yuanjian Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Teng Qiu
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Qi Hao
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
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5
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Kohila Rani K, Yang Q, Xiao YH, Devasenathipathy R, Lu Z, Chen X, Jiang L, Li Z, Liu Q, Chen H, Yu L, Li Z, Khayour S, Wang J, Wang K, Li G, Wu DY, Lu G. Boosting the Plasmon-Mediated Electrochemical Oxidation of p-Aminothiophenol with p-Hydroxythiophenol as Molecular Cocatalyst. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38038343 DOI: 10.1021/acsami.3c12778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Plasmon-mediated electrochemistry is an emerging area of interest in which the electrochemical reactions are enhanced by employing metal nanostructures possessing localized surface plasmon resonance (LSPR). However, the reaction efficacy is still far below its theoretical limit due to the ultrafast relaxation of LSPR-generated hot carriers. Herein, we introduce p-hydroxythiophenol (PHTP) as a molecular cocatalyst to significantly improve the reaction efficacy in plasmon-mediated electrochemical oxidation of p-aminothiophenol (PATP) on gold nanoparticles. Using electrochemical techniques, in situ Raman spectroscopy, and theoretical calculations, we elucidate that the presence of PHTP improves the hot hole-mediated electrochemical oxidation of PATP by 2-fold through the trapping of plasmon-mediated hot electrons. In addition, the selectivity of PATP oxidation could also be modulated by the introduction of PHTP cocatalyst. This tactic of employing molecular cocatalyst can be drawn out to endorse various plasmonic electrochemical reactions because of its simple protocol, high efficiency, and high selectivity.
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Affiliation(s)
- Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qiong Yang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yuan-Hui Xiao
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming Road, Xiamen 361005, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhihao Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Xinya Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zemin Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qinghua Liu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haonan Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Soukaina Khayour
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Gongqiang Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - De-Yin Wu
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming Road, Xiamen 361005, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
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6
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Sheng H, Wang J, Huang J, Li Z, Ren G, Zhang L, Yu L, Zhao M, Li X, Li G, Wang N, Shen C, Lu G. Strong synergy between gold nanoparticles and cobalt porphyrin induces highly efficient photocatalytic hydrogen evolution. Nat Commun 2023; 14:1528. [PMID: 36934092 PMCID: PMC10024688 DOI: 10.1038/s41467-023-37271-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 03/09/2023] [Indexed: 03/20/2023] Open
Abstract
The reaction efficiency of reactants near plasmonic nanostructures can be enhanced significantly because of plasmonic effects. Herein, we propose that the catalytic activity of molecular catalysts near plasmonic nanostructures may also be enhanced dramatically. Based on this proposal, we develop a highly efficient and stable photocatalytic system for the hydrogen evolution reaction (HER) by compositing a molecular catalyst of cobalt porphyrin together with plasmonic gold nanoparticles, around which plasmonic effects of localized electromagnetic field, local heating, and enhanced hot carrier excitation exist. After optimization, the HER rate and turn-over frequency (TOF) reach 3.21 mol g-1 h-1 and 4650 h-1, respectively. In addition, the catalytic system remains stable after 45-hour catalytic cycles, and the system is catalytically stable after being illuminated for two weeks. The enhanced reaction efficiency is attributed to the excitation of localized surface plasmon resonance, particularly plasmon-generated hot carriers. These findings may pave a new and convenient way for developing plasmon-based photocatalysts with high efficiency and stability.
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Affiliation(s)
- Huixiang Sheng
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Jin Wang
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Juhui Huang
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Guozhang Ren
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Linrong Zhang
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Mengshuai Zhao
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Xuehui Li
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Gongqiang Li
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Ning Wang
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Chen Shen
- Institute of Materials Science, Technical University of Darmstadt, Darmstadt, 64287, Germany
| | - Gang Lu
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China.
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China.
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7
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Guan M, Wang J, Wang K, Wang J, Devasenathipathy R, He S, Yu L, Zhang L, Xie H, Li Z, Lu G. Selective adsorption of cysteamine molecules on Au/TiO 2 boosts visible light-driven photocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 633:1033-1041. [PMID: 36516679 DOI: 10.1016/j.jcis.2022.12.011] [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: 07/22/2022] [Revised: 11/24/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
Photocatalytic evolution of hydrogen is becoming a research hotspot because it can help to produce clean energy and reduce environmental pollution. Titanium dioxide (TiO2) and its composites are photocatalysts that are widely used in hydrogen evolution because of their high abundance in nature, low price, and high photo/chemical stability. However, their catalytic performances still need to be further improved, particularly in the visible light spectrum. Herein, visible light-driven photocatalytic evolution of hydrogen on Au/TiO2 nanocomposite is enhanced ∼ 10 folds by selectively functionalizing the nanocomposite with cysteamine molecules. It is revealed that the amine group (-NH2) in cysteamine favors the transfer and separation of photo-generated hot carriers. The rate of hydrogen produced can be further tuned by varying the ionization of the functionalized molecules at different pH values. This work provides a simple, convenient, and effective method that can be used to improve the photocatalytic evolution of hydrogen. This method can also be used for many other nanocatalysts (e.g., Au-MoS2, Au-BiVO4) and catalytic reactions (e.g., carbon dioxide reduction, nitrogen reduction).
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Affiliation(s)
- Mengdan Guan
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jin Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Shunhao He
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Linrong Zhang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd., Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou 310003, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China.
| | - Gang Lu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China; National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, PR China.
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8
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Zhang L, Wang L, He S, Zhu C, Gong Z, Zhang Y, Wang J, Yu L, Gao K, Kang X, Song Y, Lu G, Yu HD. High-Performance Organic Electrochemical Transistor Based on Photo-annealed Plasmonic Gold Nanoparticle-Doped PEDOT:PSS. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3224-3234. [PMID: 36622049 DOI: 10.1021/acsami.2c19867] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Organic electrochemical transistors (OECTs), particularly the ones based on PEDOT:PSS, are excellent candidates for chemical and biological sensing because of their unique advantages. Improving the sensitivity and stability of OECTs is crucially important for practical applications. Herein, the transconductance of OECT is improved by 8-fold to 14.9 mS by doping the PEDOT:PSS channel with plasmonic gold nanoparticles (AuNPs) using a solution-based process followed by photo annealing. In addition, the OECT also possesses high flexibility and cyclic stability. It is revealed that the doping of AuNPs increases the conductivity of PEDOT:PSS and the photo annealing improves the crystallinity of the PEDOT:PSS channel and the interaction between AuNPs and PEDOT:PSS. These changes lead to the increase in transconductance and cyclic stability. The prepared OECTs are also demonstrated to be effective in sensitive detection of glucose within a wide concentration range of 10 nM-1 mM. Our OECTs based on photo-annealed plasmonic AuNP-doped PEDOT:PSS may find great applications in chemical and biological sensing, and this strategy may be extended to prepare many other high-performance OECT-based devices.
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Affiliation(s)
- Linrong Zhang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Li Wang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Shunhao He
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Chengcheng Zhu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Zhongyan Gong
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Yulong Zhang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Junjie Wang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Liuyingzi Yu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Kun Gao
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Xing Kang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Yaxin Song
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Gang Lu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Hai-Dong Yu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China
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9
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Wei Y, Hao Q, Fan X, Li M, Yao L, Li G, Zhao X, Huang H, Qiu T. Investigation of the Plasmon-Activated C-C Coupling Reactions by Liquid-State SERS Measurement. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54320-54327. [PMID: 36441512 DOI: 10.1021/acsami.2c15223] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The implementation of plasmonic materials in heterogeneous catalysis was limited due to the lack of experimental access in managing the plasmonic hot carriers. Herein, we propose a liquid-state surface-enhanced Raman scattering (SERS) technique to manipulate and visualize heterogeneous photocatalysis with transparent plasmonic chips. The liquid-state measurement conquers the difficulties that arise from the plasmon-induced thermal effects, and thus the plasmon based strategies can be extended to investigate a wider range of catalytic reactions. We demonstrated the selection of reaction products by modulating the plasmonic hot carriers and explored the mechanisms in several typical C-C coupling reactions with 4-bromothiophenol (4-BTP) as reactants. The real-time experimental results suggest brand new mechanisms of the formation of C-C bonds on plasmonic metal nanoparticles (NPs): the residue of 4-BTP, but not thiophenol (TP), is responsible for the C-C coupling. Furthermore, this technique was extended to study the evolution of the Suzuki-Miyaura reaction on nonplasmonic palladium metals by establishing the charge transfer channels between palladium and Au NPs. The cleavage and formation of chemical bonds in each individual reaction step were discerned, and the corresponding working mechanisms were clarified.
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Affiliation(s)
- Yunjia Wei
- School of Physics, Southeast University, Nanjing 211189, China
| | - Qi Hao
- School of Physics, Southeast University, Nanjing 211189, China
| | - Xingce Fan
- School of Physics, Southeast University, Nanjing 211189, China
| | - Mingze Li
- School of Physics, Southeast University, Nanjing 211189, China
| | - Lei Yao
- School of Physics, Southeast University, Nanjing 211189, China
| | - Guoqun Li
- School of Physics, Southeast University, Nanjing 211189, China
| | - Xing Zhao
- School of Physics, Southeast University, Nanjing 211189, China
| | - Hao Huang
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Teng Qiu
- School of Physics, Southeast University, Nanjing 211189, China
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10
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Li Z, Zhang C, Sheng H, Wang J, Zhu Y, Yu L, Wang J, Peng Q, Lu G. Molecular Cocatalyst of p-Mercaptophenylboronic Acid Boosts the Plasmon-Mediated Reduction of p-Nitrothiophenol. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38302-38310. [PMID: 35943401 DOI: 10.1021/acsami.2c08327] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Localized surface plasmon resonance (LSPR) has been demonstrated to be highly effective in the initialization or acceleration of chemical reactions because of its unique optical properties. However, because of the ultrashort lifetime (fs to ps) of plasmon-generated hot carriers, the potential of LSPR in photochemical reactions has not been fully exploited. Herein, we demonstrate an acceleration of the plasmon-mediated reduction of p-nitrothiophenol (PNTP) molecules on the surface of silver nanoparticles (AgNPs) with in situ Raman spectroscopy. p-Mercaptophenylboronic acid (PMPBA) molecules coadsorbed on AgNP surfaces act as a molecular cocatalyst in the plasmon-mediated reaction, resulting in a boosting of the PNTP reduction. This boosting is attributed to the improved transfer and separation of the plasmon-generated hot carriers at the interface of the AgNPs and coadsorbed PMPBA molecules. Our finding provides a highly simple, cost-effective, and highly effective strategy to promote plasmonic photochemistry by introducing a molecular cocatalyst, and this strategy can be extended to promote various plasmon-mediated reactions.
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Affiliation(s)
- Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Chengyu Zhang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Huixiang Sheng
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jin Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yameng Zhu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qiming Peng
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, PR China
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11
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Chen Y, Zhu Y, Sheng H, Wang J, Zhang C, Chen Y, Huang W, Lu G. Molecular Coadsorption of p-Hydroxythiophenol on Silver Nanoparticles Boosts the Plasmon-Mediated Decarboxylation Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05499] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yuqin Chen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yameng Zhu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Huixiang Sheng
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Jin Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Chengyu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yaqi Chen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China
| | - Gang Lu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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12
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Wang G, Wang K, Zhang C, Zhu Y, Jiang X, Li Z, Yin C, Ma H, Liu J, Huang X, Lu G. Modulating the plasmon-mediated silver oxidation using thiophenol molecules as monitored by in situ SERS spectroscopy. Phys Chem Chem Phys 2021; 23:26385-26391. [PMID: 34792049 DOI: 10.1039/d1cp03864h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Effective charge separation is essential in plasmon-mediated photochemistry and is usually achieved by constructing plasmon-semiconductor interfaces, which is usually challenging. In this work, by monitoring the plasmon-mediated silver oxidation with in situ Raman spectroscopy, we demonstrate that the adsorbed thiophenol molecules could modulate the rate of photochemical reactions by tuning the charge separation at the plasmon-molecule interfaces. It is found that the thiophenol molecules with strong electron-withdrawing or donating functional groups could accelerate or decelerate the rate of plasmon-mediated silver oxidation, respectively. Owing to the easy tuning of the electronic structures of organic molecules via substitution, our method provides a versatile and convenient approach for the fine modulation of plasmon-mediated photochemical reactions.
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Affiliation(s)
- Guilin Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Kai Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Chengyu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Yameng Zhu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Xueyan Jiang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Chengrong Yin
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Huili Ma
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Juqing Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Gang Lu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China. .,National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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13
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Wang Y, Liang Y, Sheng H, Wang J, Wang J, He S, Guan M, Chen Y, Lu G. Monitoring the Thiol/Thiophenol Molecule-Modulated Plasmon-Mediated Silver Oxidation with Dark-Field Optical Microscopy. Chemistry 2021; 28:e202103709. [PMID: 34812569 DOI: 10.1002/chem.202103709] [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: 10/14/2021] [Indexed: 11/05/2022]
Abstract
Surface plasmon can trigger or accelerate many photochemical reactions, especially useful in energy and environmental industries. Recently, molecular adsorption has proven effective in modulating plasmon-mediated photochemistry, however the realized chemical reactions are limited and the underlying mechanism is still unclear. Herein, by using in situ dark-field optical microscopy, the plasmon-mediated oxidative etching of silver nanoparticles (Ag NPs), a typical hot-hole-driven reaction, is monitored continuously and quantitatively. The presence of thiol or thiophenol molecules is found essential in the silver oxidation. In addition, the rate of silver oxidation is modulated by the choice of different thiol or thiophenol molecules. Compared with the molecules having electron donating groups, the ones having electron accepting groups accelerate the silver oxidation dramatically. The thiol/thiophenol modulation is attributed to the modulation of the charge separation between the Ag NPs and the adsorbed thiol or thiophenol molecules. This work demonstrates the great potential of molecular adsorption in modulating the plasmon-mediated photochemistry, which will pave a new way for developing highly efficient plasmonic photocatalysts.
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Affiliation(s)
- Yaoli Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Yan Liang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Huixiang Sheng
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Jin Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Shunhao He
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Mengdan Guan
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Yaqi Chen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Gang Lu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.,National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China
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14
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Chen Y, Liang Y, Wang L, Guan M, Zhu Y, Yue X, Huang X, Lu G. Preparation and applications of freestanding Janus nanosheets. NANOSCALE 2021; 13:15151-15176. [PMID: 34486634 DOI: 10.1039/d1nr04284j] [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
In the family of Janus nanomaterials, Janus nanosheets possess not only the advantages of Janus nanomaterials, but also the advantages of two-dimensional nanosheets, endowing them with many extraordinary properties. Therefore, Janus nanosheets have great potential in the fields of interfacial engineering, catalysis, and molecular recognition. This review summarizes and discusses the recent advances in both the preparation and applications of freestanding Janus nanosheets. After a short introduction to different types of Janus nanosheets, a variety of methods for preparing freestanding Janus nanosheets are introduced, including the surface reaction, interface reaction, emulsion reaction, self-assembly, and stripping of non-Janus nanosheets, as well as selective grafting of existing Janus nanosheets. Then, the wide applications of Janus nanosheets in the fields of emulsification, catalysis, polymer reinforcement, nanomotors, and molecular recognition are summarized in detail. Finally, a discussion on the remaining challenges and future perspectives in this field is included. This review will not only deepen the understanding of Janus nanosheets, but also benefit the designs and fabrications of extraordinary and multi-functional Janus nanosheets.
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Affiliation(s)
- Yaqi Chen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Yan Liang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Li Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Mengdan Guan
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Yameng Zhu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Xiaoping Yue
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
| | - Gang Lu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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