1
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Yang L, Peng Y, Wang Y. One-pot hydrothermal synthesis of noble-metal-free NiS on Zn 0.5Cd 0.5S nanosheet photocatalysts for high H 2 evolution from water under visible light. Dalton Trans 2024; 53:2653-2664. [PMID: 38224267 DOI: 10.1039/d3dt03765g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
At present, the rational design and facile synthesis of highly active and low-cost photocatalysts are still facing great challenges. Herein, a series of Zn0.5Cd0.5S/NiS (x mol%) composite photocatalysts have been synthesized via a simple and mild one-pot hydrothermal method. Compared with pure Zn0.5Cd0.5S, the NiS-loaded samples exhibit enhanced photocatalytic hydrogen generation performance, in which the Zn0.5Cd0.5S/NiS-5% sample has the highest H2 production rate of 10 855 ± 461 μmol h-1 g-1 with a quantum yield of 11.82% at 365 nm, which is almost 6.3 times higher than that of pristine Zn0.5Cd0.5S. The high activity of the Zn0.5Cd0.5S/NiS nanosheets may be attributed to their distinct nanostructure, including a short transfer distance of photoinduced charge carriers, a large number of unsaturated surface atoms, and a large surface area. Moreover, the added NiS nanoparticles served as an effective cocatalyst to promote photoinduced electron transfer and enhance the surface kinetics of H2 evolution. Our work provides a simple and effective route for the preparation of sulphur-based photocatalysts, which can significantly improve the efficiency of hydrogen production from water.
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Affiliation(s)
- Linfen Yang
- Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
- School of Materials and Energy, or Electron Microscopy Centre of Lanzhou University, Lanzhou, 730000, China
| | - Yong Peng
- Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
- School of Materials and Energy, or Electron Microscopy Centre of Lanzhou University, Lanzhou, 730000, China
| | - Yuhua Wang
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China.
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2
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Fortunato MT, Moore CE, Turro C. Ligand-Centered Photocatalytic Hydrogen Production in an Axially Capped Rh 2(II,II) Paddlewheel Complex with Red Light. J Am Chem Soc 2023; 145:27348-27357. [PMID: 38055041 DOI: 10.1021/jacs.3c07532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
A new series of Rh2(II,II) complexes with the formula cis-[Rh2(DTolF)2(bpnp)(L)]2+, where bpnp = 2,7-bis(2-pyridyl)-1,8-naphthyridine, DTolF = N,N'-di(p-tolyl) formamidinate, and L = pdz (pyridazine; 2), cinn (cinnoline; 3), and bncn (benzo[c]cinnoline; 4), were synthesized from the precursor cis-[Rh2(DTolF)2(bpnp)(CH3CN)2]2+ (1). The first reduction couple in 2-4 is localized on the bpnp ligand at approximately -0.52 V vs Ag/AgCl in CH3CN (0.1 M TBAPF6), followed by reduction of the corresponding diazine ligand. Complex 1 exhibits a Rh2(δ*)/DTolF → bpnp(π*) metal/ligand-to-ligand charge-transfer (1ML-LCT) absorption with a maximum at 767 nm (ε = 1800 M-1 cm-1). This transition is also present in the spectra of 2-4, overlaid with the Rh2(δ*)/DTolF → L(π*) 1ML-LCT bands at 516 nm in 2 (L = pdz), 640 nm in 3 (L = cinn), and 721 nm in 4 (L = bncn). Complexes 2 and 3 exhibit Rh2(δ*)/DTolF → bpnp 3ML-LCT excited states with lifetimes, τ, of 3 and 5 ns, respectively, in CH3CN, whereas the lowest energy 3ML-LCT state in 4 is Rh2(δ*)/DTolF → bncn in nature with τ = 1 ns. Irradiation of 4 with 670 nm light in DMF in the presence of 0.1 M TsOH (p-toluene sulfonic acid) and 30 mM BNAH (1-benzyl-1,4-dihydronicotinamide) results in the production of H2 with a turnover number (TON) of 16 over 24 h. The axial capping of the Rh2(II,II) bimetallic core with the bpnp ligand prevents the formation of an Rh-H hydride intermediate. These results show that the observed photocatalytic reactivity is localized on the bncn ligand, representing the first example of ligand-centered H2 production.
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Affiliation(s)
- Matthew T Fortunato
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43214, United States
| | - Curtis E Moore
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43214, United States
| | - Claudia Turro
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43214, United States
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3
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Muniz CN, Archer CA, Applebaum JS, Alagaratnam A, Schaab J, Djurovich PI, Thompson ME. Two-Coordinate Coinage Metal Complexes as Solar Photosensitizers. J Am Chem Soc 2023. [PMID: 37319428 DOI: 10.1021/jacs.3c02825] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Generating sustainable fuel from sunlight plays an important role in meeting the energy demands of the modern age. Herein, we report two-coordinate carbene-metal-amide (cMa, M = Cu(I) and Au(I)) complexes that can be used as sensitizers to promote the light-driven reduction of water to hydrogen. The cMa complexes studied here absorb visible photons (εvis > 103 M-1 cm-1), maintain long excited-state lifetimes (τ ∼ 0.2-1 μs), and perform stable photoinduced charge transfer to a target substrate with high photoreducing potential (E+/* up to -2.33 V vs Fc+/0 based on a Rehm-Weller analysis). We pair these coinage metal complexes with a cobalt-glyoxime electrocatalyst to photocatalytically generate hydrogen and compare the performance of the copper- and gold-based cMa complexes. We also find that the two-coordinate complexes herein can perform photodriven hydrogen production from water without the addition of the cobalt-glyoxime electrocatalyst. In this "catalyst-free" system, the cMa sensitizer partially decomposes to give metal nanoparticles that catalyze water reduction. This work identifies two-coordinate coinage metal complexes as promising abundant metal, solar fuel photosensitizers that offer exceptional tunability and photoredox properties.
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Affiliation(s)
- Collin N Muniz
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Claire A Archer
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Jack S Applebaum
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Anushan Alagaratnam
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Jonas Schaab
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Peter I Djurovich
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Mark E Thompson
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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4
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Davis-Wheeler Chin C, Fontenot P, Rostamzadeh T, Treadwell LJ, Schmehl RH, Wiley JB. Platinum@Hexaniobate Nanopeapods: A Directed Photocatalytic Architecture for Dye-Sensitized Semiconductor H 2 Production under Visible Light Irradiation. ACS APPLIED ENERGY MATERIALS 2022; 5:14687-14700. [PMID: 36590879 PMCID: PMC9795648 DOI: 10.1021/acsaem.2c01530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/19/2022] [Indexed: 05/25/2023]
Abstract
Platinum@hexaniobate nanopeapods (Pt@HNB NPPs) are a nanocomposite photocatalyst that was selectively engineered to increase the efficiency of hydrogen production from visible light photolysis. Pt@HNB NPPs consist of linear arrays of high surface area Pt nanocubes encapsulated within scrolled sheets of the semiconductor H x K4-x Nb6O17 and were synthesized in high yield via a facile one-pot microwave heating method that is fast, reproducible, and more easily scalable than multi-step approaches required by many other state-of-the-art catalysts. The Pt@HNB NPPs' unique 3D architecture enables physical separation of the Pt catalysts from competing surface reactions, promoting electron efficient delivery to the isolated reduction environment along directed charge transport pathways that kinetically prohibit recombination reactions. Pt@HNB NPPs' catalytic activity was assessed in direct comparison to representative state-of-the-art Pt/semiconductor nanocomposites (extPt-HNB NScs) and unsupported Pt nanocubes. Photolysis under similar conditions exhibited superior H2 production by the Pt@HNB NPPs, which exceeded other catalyst H2 yields (μmol) by a factor of 10. Turnover number and apparent quantum yield values showed similar dramatic increases over the other catalysts. Overall, the results clearly demonstrate that Pt@HNB NPPs represent a unique, intricate nanoarchitecture among state-of-the-art heterogeneous catalysts, offering obvious benefits as a new architectural pathway toward efficient, versatile, and scalable hydrogen energy production. Potential factors behind the Pt@HNB NPPs' superior performance are discussed below, as are the impacts of systematic variation of photolysis parameters and the use of a non-aqueous reductive quenching photosystem.
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Affiliation(s)
- Clare Davis-Wheeler Chin
- Department
of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, Louisiana70148, United States
- Advanced
Materials Laboratory, Sandia National Laboratories, Albuquerque, New Mexico87106, United States
| | - Patricia Fontenot
- Department
of Chemistry, Tulane University, New Orleans, Louisiana70118, United States
| | - Taha Rostamzadeh
- Department
of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, Louisiana70148, United States
| | - LaRico J. Treadwell
- Advanced
Materials Laboratory, Sandia National Laboratories, Albuquerque, New Mexico87106, United States
| | - Russell H. Schmehl
- Department
of Chemistry, Tulane University, New Orleans, Louisiana70118, United States
| | - John B. Wiley
- Department
of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, Louisiana70148, United States
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5
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Tran DB, To TH, Tran PD. Mo- and W-molecular catalysts for the H2 evolution, CO2 reduction and N2 fixation. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Fanara PM, Vigneswaran V, Gunasekera PS, MacMillan SN, Lacy DC. Reversible Photoisomerization in a Ru cis-Dihydride Catalyst Accessed through Atypical Metal–Ligand Cooperative H2 Activation: Photoenhanced Acceptorless Alcohol Dehydrogenation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paul M. Fanara
- Department of Chemistry, University at Buffalo, State University of New York; Buffalo, New York14260, United States
| | - Vipulan Vigneswaran
- Department of Chemistry, University at Buffalo, State University of New York; Buffalo, New York14260, United States
| | - Parami S. Gunasekera
- Department of Chemistry, University at Buffalo, State University of New York; Buffalo, New York14260, United States
| | - Samantha N. MacMillan
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York14853, United States
| | - David C. Lacy
- Department of Chemistry, University at Buffalo, State University of New York; Buffalo, New York14260, United States
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7
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Chinapang P, Iwami H, Enomoto T, Akai T, Kondo M, Masaoka S. Dirhodium-Based Supramolecular Framework Catalyst for Visible-Light-Driven Hydrogen Evolution. Inorg Chem 2021; 60:12634-12643. [PMID: 34269046 DOI: 10.1021/acs.inorgchem.1c01279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The direct conversion of solar energy to clean fuels as alternatives to fossil fuels is an important approach for addressing the global energy shortage and environmental problems. Here, we introduce a new dirhodium-complex-based framework assembly as a heterogeneous molecule-based photocatalyst for hydrogen evolution using visible light. Two dirhodium complexes bearing visible-light-harvesting BODIPY (boron dipyrromethene, BDP) moieties were newly designed and synthesized. The obtained complexes were self-assembled to framework structures (supramolecular framework catalysts), which are stabilized intermolecular noncovalent interactions. These frameworks retained excellent visible-light-harvesting properties of BDP moieties. Investigation of the catalytic performance of the supramolecular framework catalysts revealed that the supramolecular framework catalyst with heavy atoms at BDP moieties exhibited excellent performance in the formation of hydrogen with a reaction rate of 275.8 μmol g-1 h-1 under irradiation of visible light, whereas the supramolecular framework catalyst without heavy atoms at BDP moieties was inactive. Moreover, the system has the additional benefits of high durability (up to 96 h), reusability, and facile removal from the reaction mixture. We also disclosed the effect of heavy atoms at BDP moieties on the catalytic activity and proposed a reaction mechanism.
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Affiliation(s)
- Pondchanok Chinapang
- Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - Hikaru Iwami
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takafumi Enomoto
- Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - Takuya Akai
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mio Kondo
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka 565-0871, Japan.,JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Shigeyuki Masaoka
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
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8
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Kaphan DM, Brereton KR, Klet RC, Witzke RJ, Miller AJM, Mulfort KL, Delferro M, Tiede DM. Photocatalytic Transfer Hydrogenation in Water: Insight into Mechanism and Catalyst Speciation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00133] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Kaphan
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Kelsey R. Brereton
- Department of Chemistry, Pepperdine University, Malibu, California 90263, United States
| | - Rachel C. Klet
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ryan J. Witzke
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Alexander J. M. Miller
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Karen L. Mulfort
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - David M. Tiede
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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9
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Romain C, Bellemin-Laponnaz S, Dagorne S. Recent progress on NHC-stabilized early transition metal (group 3–7) complexes: Synthesis and applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213411] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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10
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Li X, Xue F, Li N, Wei X, Liu H, Zhou J, Lyu B, Liu M. One-Pot Hydrothermal Synthesis of MoS 2/Zn 0.5Cd 0.5S Heterojunction for Enhanced Photocatalytic H 2 Production. Front Chem 2020; 8:779. [PMID: 33088803 PMCID: PMC7495135 DOI: 10.3389/fchem.2020.00779] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/24/2020] [Indexed: 12/31/2022] Open
Abstract
A series of molybdenum disulfide (MoS2)/Zn0.5Cd0.5S heterojunctions have been prepared via a mild one-pot hydrothermal method based on the optimization of composition content of primary photocatalyst. The photocatalysts demonstrated significantly improved visible light-driven photocatalytic activity toward H2 evolution from water without using any noble metal cocatalyst. Among the as-prepared composites, 0.2% MoS2/Zn0.5Cd0.5S shows the best performance. The highest H2 evolution rate reaches 21 mmol · g-1 · h-1, which is four times higher than that of pure Zn0.5Cd0.5S. The apparent quantum efficiency is about 46.3% at 425 nm. The superiority is attributed to the tight connection between MoS2 and Zn0.5Cd0.5S by this facile one-step hydrothermal synthesis. As a result, the formation of the heterostructure introduces built-in electric field at the interface that facilitates vectorial charge transfer. More specifically, photogenerated electrons transfer to MoS2 to conduct proton reduction, where the holes are retained on the surface of Zn0.5Cd0.5S to react with the sacrificial reagents. Moreover, the composite presents improved stability without notable activity decay after several cycled tests.
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Affiliation(s)
- Xinru Li
- School of Material Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
- College of Petroleum Engineering, Xi'an Shiyou University, Xi'an, China
| | - Fei Xue
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Naixu Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China
| | - Xukai Wei
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Hui Liu
- School of Material Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Jianchen Zhou
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China
| | - Bin Lyu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, China
- National Educational Reform Experimental Demonstration Center, Xi'an, China
| | - Maochang Liu
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
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11
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Huang J, Gallucci JC, Turro C. Panchromatic dirhodium photocatalysts for dihydrogen generation with red light. Chem Sci 2020; 11:9775-9783. [PMID: 34094240 PMCID: PMC8162114 DOI: 10.1039/d0sc03114c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A series of three dirhodium complexes cis-[Rh2(DPhB)2(bncn)2](BF4)2 (1, DPhB = diphenylbenzamidine; bncn = benzocinnoline), cis-[Rh2(DPhTA)2(bncn)2](BF4)2 (2, DPhTA = diphenyltriazenide), and cis-[Rh2(DPhF)2(bncn)2](BF4)2 (3, DPhF = N,N′-diphenylformamidinate) shown to act as single-molecule photocatalysts for H2 production was evaluated. Complexes 1–3 are able to generate H2 in the absence of any other catalyst in homogenous acidic solution upon irradiation with red light in the presence of the sacrificial electron donor BNAH (1-benzyl-1,4-dihydronicotinamide). The excited state of each complex is reductively quenched by BNAH, producing the corresponding one-electron reduced complex. The latter is also able to absorb a photon and oxidize another BNAH molecule, producing the doubly-reduced, activated form of the catalyst that is able to generate H2. The present work shows the effect of substitution on the bridging ligands on the driving force for reductive quenching and hydricity of the proposed active intermediate, both of which affect the efficiency of hydrogen production. Complexes 1–3 operate following a double reductive quenching mechanism and, importantly, are active with red light. This work lays the foundation for the design of single-molecule photocatalysts that operate from the ultraviolet to the near-infrared, such that solar photons throughout this entire range are harnessed and utilized for solar energy conversion. Three dirhodium complexes cis-[Rh2(DPhB)2(bncn)2](BF4)2, cis-[Rh2(DPhTA)2(bncn)2](BF4)2 and cis-[Rh2(DPhF)2(bncn)2](BF4)2 are shown to act as single-molecule photocatalysts for H2 production.![]()
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Affiliation(s)
- Jie Huang
- Department of Chemistry and Biochemistry, The Ohio State University Columbus OH 43210 USA
| | - Judith C Gallucci
- Department of Chemistry and Biochemistry, The Ohio State University Columbus OH 43210 USA
| | - Claudia Turro
- Department of Chemistry and Biochemistry, The Ohio State University Columbus OH 43210 USA
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12
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Stratakes BM, Miller AJM. H 2 Evolution at an Electrochemical “Underpotential” with an Iridium-Based Molecular Photoelectrocatalyst. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Bethany M. Stratakes
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Alexander J. M. Miller
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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13
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Shirley H, Parkin S, Delcamp JH. Photoinduced Generation of a Durable Thermal Proton Reduction Catalyst with in Situ Conversion of Mn(bpy)(CO)3Br to Mn(bpy)2Br2. Inorg Chem 2020; 59:11266-11272. [DOI: 10.1021/acs.inorgchem.0c00480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hunter Shirley
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
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14
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Whittemore TJ, Xue C, Huang J, Gallucci JC, Turro C. Single-chromophore single-molecule photocatalyst for the production of dihydrogen using low-energy light. Nat Chem 2020; 12:180-185. [DOI: 10.1038/s41557-019-0397-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 11/15/2019] [Indexed: 01/23/2023]
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15
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Zhu N, Wang S, Tang C, Duan P, Yao L, Tang J, Wong PK, An T, Dionysiou DD, Wu Y. Protection Mechanisms of Periphytic Biofilm to Photocatalytic Nanoparticle Exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:1585-1594. [PMID: 30614685 DOI: 10.1021/acs.est.8b04923] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Researchers are devoting great effort to combine photocatalytic nanoparticles (PNPs) with biological processes to create efficient environmental purification technologies (i.e., intimately coupled photobiocatalysis). However, little information is available to illuminate the responses of multispecies microbial aggregates against PNP exposure. Periphytic biofilm, as a model multispecies microbial aggregate, was exposed to three different PNPs (CdS, TiO2, and Fe2O3) under xenon lamp irradiation. There were no obvious toxic effects of PNP exposure on periphytic biofilm as biomass, chlorophyll content, and ATPase activity were not negatively impacted. Enhanced production of extracellular polymetric substances (EPS) is the most important protection mechanism of periphytic biofilm against PNPs exposure. Although PNP exposure produced extracellular superoxide radicals and caused intracellular reactive oxygen species (ROS) accumulation in periphytic biofilm, the interaction between EPS and PNPs could mitigate production of ROS while superoxide dismutase could alleviate biotic ROS accumulation in periphytic biofilm. The periphytic biofilms changed their community composition in the presence of PNPs by increasing the relative abundance of phototrophic and high nutrient metabolic microorganisms (families Chlamydomonadaceae, Cyanobacteriacea, Sphingobacteriales, and Xanthomonadaceae). This study provides insight into the protection mechanisms of microbial aggregates against simultaneous photogenerated and nanoparticle toxicity from PNPs.
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Affiliation(s)
- Ningyuan Zhu
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture , Institute of Soil Sciences, Chinese Academy of Sciences , 71 East Beijing Road , Nanjing 210008 , China
- Department of Chemical and Environmental Engineering (ChEE) , 705 Engineering Research Center, University of Cincinnati , Cincinnati , Ohio 45221-0012 , United States
- College of Resource and Environment , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Sichu Wang
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture , Institute of Soil Sciences, Chinese Academy of Sciences , 71 East Beijing Road , Nanjing 210008 , China
- College of Resource and Environment , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Cilai Tang
- College of Hydraulic & Environmental Engineering , China Three Gorges University , Yichang 443002 , China
| | - Pengfei Duan
- Collaborative Innovation Center of Water Security for Water Source, Region of Mid-line of South-to-North Diversion Project , Nanyang Normal University , Nanyang 473061 , China
| | - Lunguang Yao
- Collaborative Innovation Center of Water Security for Water Source, Region of Mid-line of South-to-North Diversion Project , Nanyang Normal University , Nanyang 473061 , China
| | - Jun Tang
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture , Institute of Soil Sciences, Chinese Academy of Sciences , 71 East Beijing Road , Nanjing 210008 , China
- College of Resource and Environment , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Po Keung Wong
- School of Life Sciences , The Chinese University of Hong Kong , Shatin , NT Hong Kong SAR , China
| | - Taicheng An
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control , Guangdong University of Technology , Guangzhou 510006 , China
| | - Dionysios D Dionysiou
- Department of Chemical and Environmental Engineering (ChEE) , 705 Engineering Research Center, University of Cincinnati , Cincinnati , Ohio 45221-0012 , United States
| | - Yonghong Wu
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture , Institute of Soil Sciences, Chinese Academy of Sciences , 71 East Beijing Road , Nanjing 210008 , China
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