1
|
Li C, Hofmeister E, Krivtsov I, Mitoraj D, Adler C, Beranek R, Dietzek B. Photodriven Charge Accumulation and Carrier Dynamics in a Water-Soluble Carbon Nitride Photocatalyst. CHEMSUSCHEM 2021; 14:1728-1736. [PMID: 33586917 PMCID: PMC8048561 DOI: 10.1002/cssc.202002921] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/15/2021] [Indexed: 05/21/2023]
Abstract
Charge accumulation in photoactive molecules and materials holds great promise in solar energy conversion as it allows for decoupling solar-driven charging from (dark) redox reactions. In this contribution, light-driven charge accumulation was investigated for a recently reported novel water-soluble carbon nitride [K,Na-poly(heptazine imide); K,Na-PHI] photocatalyst, which exhibits excellent activity and stability in highly selective photocatalytic oxidation of alcohols and concurrent reduction of dioxygen to H2 O2 under quasi-homogeneous conditions. An excellent charge storage ability of the K,Na-PHI material was demonstrated, showing an optimal density of accumulated electrons (32.2 μmol of electrons per gram) in the presence of 10 vol % MeOH as a sacrificial electron donor. The long-lived electrons accumulated under anaerobic conditions as K,Na-PHI.- radical ions were utilized in interfacial electron transfer to O2 or methyl viologen in a subsequent dark reaction. Ultrafast time-resolved spectroscopy was employed to reveal the kinetics of charge-carrier recombination and methanol oxidation. Geminate recombination of electrons and holes within approximately 100 ps was followed by trap-assisted recombination. The presence of methanol as a sacrificial electron donor accelerated the decay of the transient absorption signal when a static sample was used. This behavior was ascribed to the faster charge recombination in the presence of the radical anions generated after hole extraction. The work suggests that photodriven electron storage in the water-soluble carbon nitride is enabled by localized trap states, and highlights the importance of the effective electron donor for creating long-lived photo-generated carbon nitride radicals.
Collapse
Affiliation(s)
- Chunyu Li
- Department Functional InterfacesLeibniz Institute of Photonic Technology Jena (IPHT)Albert-Einstein-Straße 907745JenaGermany
- Institute of Physical ChemistryFriedrich-Schiller University JenaHelmholtzweg 407743JenaGermany
| | - Elisabeth Hofmeister
- Department Functional InterfacesLeibniz Institute of Photonic Technology Jena (IPHT)Albert-Einstein-Straße 907745JenaGermany
- Institute of Physical ChemistryFriedrich-Schiller University JenaHelmholtzweg 407743JenaGermany
| | - Igor Krivtsov
- Institute of ElectrochemistryUlm UniversityAlbert-Einstein-Allee 4789081UlmGermany
| | - Dariusz Mitoraj
- Institute of ElectrochemistryUlm UniversityAlbert-Einstein-Allee 4789081UlmGermany
| | - Christiane Adler
- Institute of ElectrochemistryUlm UniversityAlbert-Einstein-Allee 4789081UlmGermany
| | - Radim Beranek
- Institute of ElectrochemistryUlm UniversityAlbert-Einstein-Allee 4789081UlmGermany
| | - Benjamin Dietzek
- Department Functional InterfacesLeibniz Institute of Photonic Technology Jena (IPHT)Albert-Einstein-Straße 907745JenaGermany
- Institute of Physical ChemistryFriedrich-Schiller University JenaHelmholtzweg 407743JenaGermany
- Centre for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich-Schiller University JenaPhilosophenweg 7a07743JenaGermany
| |
Collapse
|
2
|
Fu C, Li F, Zhang J, Li D, Qian K, Liu Y, Tang J, Fan F, Zhang Q, Gong XQ, Huang W. Site Sensitivity of Interfacial Charge Transfer and Photocatalytic Efficiency in Photocatalysis: Methanol Oxidation on Anatase TiO 2 Nanocrystals. Angew Chem Int Ed Engl 2021; 60:6160-6169. [PMID: 33289198 DOI: 10.1002/anie.202014037] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Indexed: 11/10/2022]
Abstract
Photocatalytic oxidation of methanol on various anatase TiO2 nanocrystals was studied by in situ and time-resolved characterizations and DFT calculations. Surface site and resulting surface adsorbates affect the surface band bending/bulk-to-surface charge migration processes and interfacial electronic structure/interfacial charge transfer processes. TiO2 nanocrystals predominantly enclosed by the {001} facets expose a high density of reactive fourfold-coordinated Ti sites (Ti4c ) at which CH3 OH molecules dissociate to form the CH3 O adsorbate (CH3 O(a)Ti4c ). CH3 O(a)Ti4c localized density of states are almost at the valence band maximum of TiO2 surface, facilitating the interfacial hole transfer process; CH3 O(a)Ti4c with a high coverage promotes upward surface band bending, facilitating bulk-to-surface hole migration. CH3 O(a)Ti4c exhibits the highest photocatalytic oxidation rate constant. TiO2 nanocrystals enclosed by the {001} facets are most active in photocatalytic methanol oxidation.
Collapse
Affiliation(s)
- Cong Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Heifei, 230026, P. R. China
| | - Fei Li
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jiachen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Heifei, 230026, P. R. China
| | - Dan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Heifei, 230026, P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Heifei, 230026, P. R. China
| | - Yong Liu
- State Key Laboratory of Catalysis, Dalian Institute of, Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Junwang Tang
- Department of Chemical Engineering, University College London, London, WC1E 7JE, UK
| | - Fengtao Fan
- State Key Laboratory of Catalysis, Dalian Institute of, Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,Dalian National Laboratory for Clean Energy, Dalian, 116023, P. R. China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Heifei, 230026, P. R. China
| | - Xue-Qing Gong
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Heifei, 230026, P. R. China.,Dalian National Laboratory for Clean Energy, Dalian, 116023, P. R. China
| |
Collapse
|
3
|
Fu C, Li F, Zhang J, Li D, Qian K, Liu Y, Tang J, Fan F, Zhang Q, Gong X, Huang W. Site Sensitivity of Interfacial Charge Transfer and Photocatalytic Efficiency in Photocatalysis: Methanol Oxidation on Anatase TiO
2
Nanocrystals. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014037] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Cong Fu
- Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics University of Science and Technology of China Heifei 230026 P. R. China
| | - Fei Li
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis East China University of Science and Technology Shanghai 200237 P. R. China
| | - Jiachen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemical Physics Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Heifei 230026 P. R. China
| | - Dan Li
- Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics University of Science and Technology of China Heifei 230026 P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics University of Science and Technology of China Heifei 230026 P. R. China
| | - Yong Liu
- State Key Laboratory of Catalysis Dalian Institute of, Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Junwang Tang
- Department of Chemical Engineering University College London London WC1E 7JE UK
| | - Fengtao Fan
- State Key Laboratory of Catalysis Dalian Institute of, Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- Dalian National Laboratory for Clean Energy Dalian 116023 P. R. China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemical Physics Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Heifei 230026 P. R. China
| | - Xue‐Qing Gong
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis East China University of Science and Technology Shanghai 200237 P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics University of Science and Technology of China Heifei 230026 P. R. China
- Dalian National Laboratory for Clean Energy Dalian 116023 P. R. China
| |
Collapse
|
4
|
Pei GX, Dzade NY, Zhang Y, Hofmann JP, Leeuw NH, Weckhuysen BM. Identification of Photoexcited Electron Relaxation in a Cobalt Phosphide Modified Carbon Nitride Photocatalyst. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202000259] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guang Xian Pei
- Inorganic Chemistry and Catalysis group Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Nelson Y. Dzade
- School of Chemistry Cardiff University Main Building, Park Place CF10 3AT Cardiff United Kingdom
| | - Yue Zhang
- Laboratory of Inorganic Materials Chemistry Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jan P. Hofmann
- Laboratory of Inorganic Materials Chemistry Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
- Surface Science Laboratory Department of Materials and Earth Sciences Technical University of Darmstadt Otto-Berndt-Strasse 3 64287 Darmstadt Germany
| | - Nora H. Leeuw
- School of Chemistry Cardiff University Main Building, Park Place CF10 3AT Cardiff United Kingdom
- Faculty of Geosciences Utrecht University Princetonlaan 8 A 3584 CB Utrecht The Netherlands
- School of Chemistry University of Leeds LT2 9JT Leeds United Kingdom
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis group Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| |
Collapse
|
5
|
Wang H, Jin S, Zhang X, Xie Y. Excitonic Effects in Polymeric Photocatalysts. Angew Chem Int Ed Engl 2020; 59:22828-22839. [DOI: 10.1002/anie.202002241] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Hui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| | - Sen Jin
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Xiaodong Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| |
Collapse
|
6
|
Affiliation(s)
- Hui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| | - Sen Jin
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Xiaodong Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of Energy Hefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| |
Collapse
|
7
|
Chen X, Xiao S, Wang H, Wang W, Cai Y, Li G, Qiao M, Zhu J, Li H, Zhang D, Lu Y. MOFs Conferred with Transient Metal Centers for Enhanced Photocatalytic Activity. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaolang Chen
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Shuning Xiao
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Hao Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200433 China
| | - Wenchao Wang
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Yong Cai
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Guisheng Li
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Minghua Qiao
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200433 China
| | - Jian Zhu
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Hexing Li
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Dieqing Zhang
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Yunfeng Lu
- Department of Chemical and Biomolecular Engineering University of California Los Angeles CA 90095 USA
| |
Collapse
|
8
|
Chen X, Xiao S, Wang H, Wang W, Cai Y, Li G, Qiao M, Zhu J, Li H, Zhang D, Lu Y. MOFs Conferred with Transient Metal Centers for Enhanced Photocatalytic Activity. Angew Chem Int Ed Engl 2020; 59:17182-17186. [DOI: 10.1002/anie.202002375] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 05/26/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Xiaolang Chen
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Shuning Xiao
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Hao Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200433 China
| | - Wenchao Wang
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Yong Cai
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Guisheng Li
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Minghua Qiao
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200433 China
| | - Jian Zhu
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Hexing Li
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Dieqing Zhang
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 P. R. China
| | - Yunfeng Lu
- Department of Chemical and Biomolecular Engineering University of California Los Angeles CA 90095 USA
| |
Collapse
|
9
|
Wang H, Jiang S, Liu W, Zhang X, Zhang Q, Luo Y, Xie Y. Ketones as Molecular Co-catalysts for Boosting Exciton-Based Photocatalytic Molecular Oxygen Activation. Angew Chem Int Ed Engl 2020; 59:11093-11100. [PMID: 32219966 DOI: 10.1002/anie.202003042] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Indexed: 01/22/2023]
Abstract
Excitonic processes in semiconductors open up the possibility for pursuing photocatalytic organic synthesis. However, the insufficient spin relaxation and robust nonradiative decays in semiconductors place restrictions on both quantum yield and selectivity of these reactions. Herein, by taking polymeric carbon nitride (PCN)/acetone as a prototypical system, we propose that extrinsic aliphatic ketones can serve as molecular co-catalysts for promoting spin-flip transition and suppressing non-radiative energy losses. Spectroscopic investigations indicate that hot excitons in PCN can be transferred to ketones, while triplet excitons in ketones can be transferred to PCN. As such, the PCN/ketone systems exhibit considerable triplet-exciton accumulation and extended visible-light response, leading to excellent performance in exciton-based photocatalysis, such as singlet oxygen generation. This work provides a fundamental understanding of energy harvesting in semiconductor/molecule systems, and paves the way for optimizing exciton-based photocatalysis via molecular co-catalyst design.
Collapse
Affiliation(s)
- Hui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui, 230031, P. R. China
| | - Shenlong Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wenxiu Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xiaodong Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui, 230031, P. R. China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui, 230031, P. R. China
| |
Collapse
|
10
|
Wang H, Jiang S, Liu W, Zhang X, Zhang Q, Luo Y, Xie Y. Ketones as Molecular Co‐catalysts for Boosting Exciton‐Based Photocatalytic Molecular Oxygen Activation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hui Wang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of EnergyHefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| | - Shenlong Jiang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Wenxiu Liu
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Xiaodong Zhang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of EnergyHefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in NanoscienceSynergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
- Institute of EnergyHefei Comprehensive National Science Center Hefei Anhui 230031 P. R. China
| |
Collapse
|
11
|
Wang Y, Liu X, Wang Q, Quick M, Kovalenko SA, Chen Q, Koch N, Pinna N. Insights into Charge Transfer at an Atomically Precise Nanocluster/Semiconductor Interface. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yu Wang
- Institut für Chemie and IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Xiao‐He Liu
- International Research Center for Renewable Energy (IRCRE) and State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power Engineering Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Qiankun Wang
- Institut für Physik and IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Strasse 6 12489 Berlin Germany
| | - Martin Quick
- Institut für Chemie and IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Sergey A. Kovalenko
- Institut für Chemie and IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Qing‐Yun Chen
- International Research Center for Renewable Energy (IRCRE) and State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power Engineering Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Norbert Koch
- Institut für Physik and IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Strasse 6 12489 Berlin Germany
| | - Nicola Pinna
- Institut für Chemie and IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| |
Collapse
|
12
|
Wang Y, Liu XH, Wang Q, Quick M, Kovalenko SA, Chen QY, Koch N, Pinna N. Insights into Charge Transfer at an Atomically Precise Nanocluster/Semiconductor Interface. Angew Chem Int Ed Engl 2020; 59:7748-7754. [PMID: 32068941 PMCID: PMC7317755 DOI: 10.1002/anie.201915074] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/02/2020] [Indexed: 01/20/2023]
Abstract
The deposition of an atomically precise nanocluster, for example, Ag44(SR)30, onto a large‐band‐gap semiconductor such as TiO2 allows a clear interface to be obtained to study charge transfer at the interface. Changing the light source from visible light to simulated sunlight led to a three orders of magnitude enhancement in the photocatalytic H2 generation, with the H2 production rate reaching 7.4 mmol h−1 gcatalyst−1. This is five times higher than that of TiO2 modified with Ag nanoparticles and even comparable to that of TiO2 modified with Pt nanoparticles under similar conditions. Energy band alignment and transient absorption spectroscopy reveal that the role of the metal clusters is different from that of both organometallic complexes and plasmonic nanoparticles: A type II heterojunction charge‐transfer route is achieved under UV/Vis irradiation, with the cluster serving as a small‐band‐gap semiconductor. This results in the clusters acting as co‐catalysts rather than merely photosensitizers.
Collapse
Affiliation(s)
- Yu Wang
- Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Xiao-He Liu
- International Research Center for Renewable Energy (IRCRE) and State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Qiankun Wang
- Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 6, 12489, Berlin, Germany
| | - Martin Quick
- Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Sergey A Kovalenko
- Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Qing-Yun Chen
- International Research Center for Renewable Energy (IRCRE) and State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Norbert Koch
- Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 6, 12489, Berlin, Germany
| | - Nicola Pinna
- Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| |
Collapse
|
13
|
Wang W, Zhang H, Zhang S, Liu Y, Wang G, Sun C, Zhao H. Potassium‐Ion‐Assisted Regeneration of Active Cyano Groups in Carbon Nitride Nanoribbons: Visible‐Light‐Driven Photocatalytic Nitrogen Reduction. Angew Chem Int Ed Engl 2019; 58:16644-16650. [DOI: 10.1002/anie.201908640] [Citation(s) in RCA: 211] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/30/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Weikang Wang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Haimin Zhang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
| | - Shengbo Zhang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Yanyan Liu
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Guozhong Wang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
| | - Chenghua Sun
- Department of Chemistry and BiotechnologyCenter for Translational AtomaterialsFaculty of Science, Engineering and TechnologySwinburne University of Technology Hawthorn VIC 3122 Australia
| | - Huijun Zhao
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- Centre for Clean Environment and EnergyGriffith University Gold Coast Campus QLD 4222 Australia
| |
Collapse
|
14
|
Wang W, Zhang H, Zhang S, Liu Y, Wang G, Sun C, Zhao H. Potassium‐Ion‐Assisted Regeneration of Active Cyano Groups in Carbon Nitride Nanoribbons: Visible‐Light‐Driven Photocatalytic Nitrogen Reduction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908640] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Weikang Wang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Haimin Zhang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
| | - Shengbo Zhang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Yanyan Liu
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Guozhong Wang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
| | - Chenghua Sun
- Department of Chemistry and BiotechnologyCenter for Translational AtomaterialsFaculty of Science, Engineering and TechnologySwinburne University of Technology Hawthorn VIC 3122 Australia
| | - Huijun Zhao
- Key Laboratory of Materials Physics, Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Exllence in NanoscienceInstitute of Solid State PhysicsChinese Academy of Sciences Hefei Anhui 230031 China
- Centre for Clean Environment and EnergyGriffith University Gold Coast Campus QLD 4222 Australia
| |
Collapse
|