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Edwards EH, Jelušić J, Kosko RM, McClelland KP, Ngarnim SS, Chiang W, Lampa-Pastirk S, Krauss TD, Bren KL. Shewanella oneidensis MR-1 respires CdSe quantum dots for photocatalytic hydrogen evolution. Proc Natl Acad Sci U S A 2023; 120:e2206975120. [PMID: 37068259 PMCID: PMC10151509 DOI: 10.1073/pnas.2206975120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 03/21/2023] [Indexed: 04/19/2023] Open
Abstract
Living bio-nano systems for artificial photosynthesis are of growing interest. Typically, these systems use photoinduced charge transfer to provide electrons for microbial metabolic processes, yielding a biosynthetic solar fuel. Here, we demonstrate an entirely different approach to constructing a living bio-nano system, in which electrogenic bacteria respire semiconductor nanoparticles to support nanoparticle photocatalysis. Semiconductor nanocrystals are highly active and robust photocatalysts for hydrogen (H2) evolution, but their use is hindered by the oxidative side of the reaction. In this system, Shewanella oneidensis MR-1 provides electrons to a CdSe nanocrystalline photocatalyst, enabling visible light-driven H2 production. Unlike microbial electrolysis cells, this system requires no external potential. Illuminating this system at 530 nm yields continuous H2 generation for 168 h, which can be lengthened further by replenishing bacterial nutrients.
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Affiliation(s)
- Emily H. Edwards
- Department of Chemistry, University of Rochester, Rochester, NY14627
| | - Jana Jelušić
- Department of Chemistry, University of Rochester, Rochester, NY14627
| | - Ryan M. Kosko
- Department of Chemistry, University of Rochester, Rochester, NY14627
| | | | - Soraya S. Ngarnim
- Department of Chemistry, University of Rochester, Rochester, NY14627
| | - Wesley Chiang
- Department of Biochemistry and Biophysics, University of Rochester, Rochester, NY14627
| | | | - Todd D. Krauss
- Department of Chemistry, University of Rochester, Rochester, NY14627
- Department of Optics, University of Rochester, Rochester, NY14627
| | - Kara L. Bren
- Department of Chemistry, University of Rochester, Rochester, NY14627
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Fluorescent Carbon Quantum Dots for Effective Tumor Diagnosis: A Comprehensive Review. BIOMEDICAL ENGINEERING ADVANCES 2023. [DOI: 10.1016/j.bea.2023.100072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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3
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Salamatian AA, Bren KL. Bioinspired and biomolecular catalysts for energy conversion and storage. FEBS Lett 2023; 597:174-190. [PMID: 36331366 DOI: 10.1002/1873-3468.14533] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
Metalloenzymes are remarkable for facilitating challenging redox transformations with high efficiency and selectivity. In the area of alternative energy, scientists aim to capture these properties in bioinspired and engineered biomolecular catalysts for the efficient and fast production of fuels from low-energy feedstocks such as water and carbon dioxide. In this short review, efforts to mimic biological catalysts for proton reduction and carbon dioxide reduction are highlighted. Two important recurring themes are the importance of the microenvironment of the catalyst active site and the key role of proton delivery to the active site in achieving desired reactivity. Perspectives on ongoing and future challenges are also provided.
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Affiliation(s)
| | - Kara L Bren
- Department of Chemistry, University of Rochester, NY, USA
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4
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Shen M, Ding T, Tan C, Rackers WH, Zhang D, Lew MD, Sadtler B. In Situ Imaging of Catalytic Reactions on Tungsten Oxide Nanowires Connects Surface-Ligand Redox Chemistry with Photocatalytic Activity. NANO LETTERS 2022; 22:4694-4701. [PMID: 35674669 DOI: 10.1021/acs.nanolett.2c00674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Semiconductor nanocrystals are promising candidates for generating chemical feedstocks through photocatalysis. Understanding the role of ligands used to prepare colloidal nanocrystals in catalysis is challenging due to the complexity and heterogeneity of nanocrystal surfaces. We use in situ single-molecule fluorescence imaging to map the spatial distribution of active regions along individual tungsten oxide nanowires before and after functionalizing them with ascorbic acid. Rather than blocking active sites, we observed a significant enhancement in activity for photocatalytic water oxidation after treatment with ascorbic acid. While the initial nanowires contain inactive regions dispersed along their length, the functionalized nanowires show high uniformity in their photocatalytic activity. Spatial colocalization of the active regions with their surface chemical properties shows that oxidation of ascorbic acid during photocatalysis generates new oxygen vacancies along the nanowire surface. We demonstrate that controlling surface-ligand redox chemistry during photocatalysis can enhance the active site concentration on nanocrystal catalysts.
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Affiliation(s)
- Meikun Shen
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, United States
| | - Tianben Ding
- Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130, United States
| | - Che Tan
- Department of Energy, Environmental, and Chemical Engineering, Washington University, St. Louis, Missouri 63130, United States
| | - William H Rackers
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, United States
| | - Dongyan Zhang
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, United States
| | - Matthew D Lew
- Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130, United States
- Institute of Materials Science and Engineering, Washington University, St. Louis, Missouri 63130, United States
| | - Bryce Sadtler
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, United States
- Institute of Materials Science and Engineering, Washington University, St. Louis, Missouri 63130, United States
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5
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Li LY, Ma YG, Li Q, Li YL, Hao YJ, Wang XJ, Liu RH, Li FT. Reverse construction of dominant/secondary facets in Bi 24O 31Br 10 photocatalysts for boosting electronic transfer. Chem Commun (Camb) 2021; 57:9676-9679. [PMID: 34555138 DOI: 10.1039/d1cc04003k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, it is found that the preferential growth of secondary {117} facets of Bi24O31Br10 into dominant facets would lead to higher photocatalytic activity, although the original main {213} facet has a stronger molecular oxygen adsorption ability, which illustrates that the charge separation efficiency induced by dominant/secondary facet control plays a more important role than that of O2 adsorptive performance in improving activity.
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Affiliation(s)
- Ling-Yun Li
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Yue-Guang Ma
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Qi Li
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Yi-Lei Li
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.,Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Ying-Juan Hao
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xiao-Jing Wang
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Rui-Hong Liu
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Fa-Tang Li
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China. .,Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
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6
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Kennehan ER, Munson KT, Grieco C, Doucette GS, Marshall AR, Beard MC, Asbury JB. Influence of Ligand Structure on Excited State Surface Chemistry of Lead Sulfide Quantum Dots. J Am Chem Soc 2021; 143:13824-13834. [PMID: 34420309 DOI: 10.1021/jacs.1c06248] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The ligand-nanocrystal boundaries of colloidal quantum dots (QDs) mediate the primary energy and electron transfer processes that underpin photochemical and photocatalytic transformations at their surfaces. We use mid-infrared transient absorption spectroscopy to reveal the influence that ligand structure and bonding to nanocrystal surfaces have on the changes of the excited state surface chemistry of this boundary in PbS QDs and the corresponding impact on charge transfer processes between nanocrystals. We demonstrate that oleate ligands undergo marked changes in their bonding to surfaces in the excitonic excited states of the nanocrystals, indicating that oleate passivated PbS surfaces undergo significant structural changes following photoexcitation. These changes can impact the surface mobility of the ligands and the ability of redox shuttles to approach the nanocrystal surfaces to undergo charge transfer in photocatalytic reactions. In contrast, markedly different transient vibrational features are observed in iodide/mercaptoproprionic acid passivated PbS QD films that result from charge transfer between neighboring nanocrystals and localization of holes at the nanocrystal surfaces near MPA ligands. This ability to distinguish the influence that excitonic excited states vs charge transfer processes have on the surface chemistry of the ligand-nanocrystal boundary lays the groundwork for exploration of how this boundary can be understood and controlled for the design of nanocrystalline materials tailored for specific applications in solar energy harvesting and photocatalytic reactions.
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Affiliation(s)
- Eric R Kennehan
- Magnitude Instruments, State College, Pennsylvania 16803, United States.,Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kyle T Munson
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Christopher Grieco
- Magnitude Instruments, State College, Pennsylvania 16803, United States.,Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Grayson S Doucette
- Intercollege Materials Science and Engineering Program, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ashley R Marshall
- Chemical and Materials Science, National Renewable Energy Laboratory (NREL), Golden, Colorado 80401, United States.,Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Matthew C Beard
- Chemical and Materials Science, National Renewable Energy Laboratory (NREL), Golden, Colorado 80401, United States.,Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - John B Asbury
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.,Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.,Intercollege Materials Science and Engineering Program, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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