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Spitsyna NG, Lobach AS, Blagov MA, Dremova NN, Dmitriev AI, Zhidkov MV, Simonov SV. Creation of spin switching in graphene oxide-based hybrid film materials with an anionic Fe(III) 5Cl-salicyaldehyde-thiosemicarbazone complex. Dalton Trans 2024. [PMID: 39069880 DOI: 10.1039/d4dt01593b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
The present article describes the synthesis of hybrid composite film materials formed during the self-assembly process through non-covalent interactions of graphene oxide (GO) nanosheets with salt 1, represented by an anionic spin-crossover complex [FeIII(5Cl-thsa)2]- (5Cl-thsa - 5-chlorosalicylaldehyde thiosemicarbazone) and the organic tetraethylammonium cation [Et4N]+. The insertion of the salt 1 molecules into the interlayer space of GO nanosheets with the subsequent formation of a hybrid material GO-1 was observed. The film of the hybrid material GO-1 was characterized by scanning electron and confocal laser microscopy, EDX and XPS analysis, IR, Raman and 57Fe Mössbauer spectroscopy, dc magnetic measurements, and powder X-ray diffraction. Comparison of the magnetic properties of salt 1 and a film of the hybrid material GO-1 demonstrated a significant influence of the GO nanosheets matrix on the completeness of spin transition and showed a slight shift of the hysteresis loop by 1 K in the temperature range of 200-230 K. DFT calculations showed an important role of the organic cation [Et4N]+ in the process of adsorption of the spin-crossover anion [FeIII(5Cl-thsa)2]- on the GO nanosheet surface.
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Affiliation(s)
- Nataliya G Spitsyna
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia.
| | - Anatoly S Lobach
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia.
| | - Maxim A Blagov
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia.
| | - Nadezhda N Dremova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia.
| | - Alexei I Dmitriev
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia.
| | - Mikhail V Zhidkov
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia.
| | - Sergei V Simonov
- Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia
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Lebepe TC, Maluleke R, Mgedle N, Oluwafemi OS. Porphyrin as a Cryoprotectant for Graphene Oxide-Coated Gold Nanorods to Produce Conjugated Product with Improved Stability and Opto-Phototherapeutic Properties. Pharmaceutics 2023; 15:2538. [PMID: 38004518 PMCID: PMC10674824 DOI: 10.3390/pharmaceutics15112538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/22/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Graphene oxide (GO) as a coating material for gold nanorods (AuNRs) has gained interest in reducing toxicity and improving the photothermal profiling of AuNRs. However, there is still a challenge regarding the storage of colloidal suspensions of GO-coated AuNRs (GO@AuNRs). Hence, the conjugation of GO@AuNRs to meso-tetra-(4-sulfonatophenyl)porphyrin (TPPS4), an anionic water-soluble porphyrin, has been reported to enhance their re-dispensability and improve their phototherapeutic properties. The AuNRs and GO were synthesised using seed-mediated and Hummers' methods, respectively. The GO@AuNRs were conjugated to TPPS4 and characterised using ultraviolet-visible-near-infrared (UV-Vis-NIR) spectroscopy, zeta analyser, dynamic light scattering (DLS), photoluminescence spectroscopy (PL), x-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and Fourier-transform infrared spectroscopy (FTIR) before freeze-drying. The results showed that the AuNRs were sandwiched between GO and TPPS4. After freeze-drying, the freeze-dried conjugate was dispensed in deionised water without adding cryoprotectants and its properties were compared to those of the unfreeze-dried conjugate. The results showed that the freeze-dried conjugate contained similar optical properties to the unfreeze-dried conjugate. However, the bare GO@AuNRs showed a change in the optical properties after freeze-drying. These results revealed that porphyrin is an excellent additive to reduce the freeze-drying stress tolerance of GO@AuNRs. The freeze-dried conjugate also showed both singlet oxygen and photothermal properties of GO@AuNRs and porphyrin. These results indicated that the freeze-dried conjugate is a promising dual photodynamic and photothermal agent, and porphyrin can act as a cryoprotectant.
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Affiliation(s)
- Thabang Calvin Lebepe
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (R.M.); (N.M.)
- Department of Chemical Sciences, University of Johannesburg, Johannesburg 2028, South Africa
| | - Rodney Maluleke
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (R.M.); (N.M.)
- Department of Chemical Sciences, University of Johannesburg, Johannesburg 2028, South Africa
| | - Nande Mgedle
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (R.M.); (N.M.)
- Department of Chemical Sciences, University of Johannesburg, Johannesburg 2028, South Africa
| | - Oluwatobi Samuel Oluwafemi
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (R.M.); (N.M.)
- Department of Chemical Sciences, University of Johannesburg, Johannesburg 2028, South Africa
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3
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Bichan NG, Ovchenkova EN, Mozgova VA, Ksenofontov AA, Kudryakova NO, Shelaev IV, Gostev FE, Lomova TN. Donor-Acceptor Complexes of (5,10,15,20-Tetra(4-methylphenyl)porphyrinato)cobalt(II) with Fullerenes C 60: Self-Assembly, Spectral, Electrochemical and Photophysical Properties. Molecules 2022; 27:8900. [PMID: 36558032 PMCID: PMC9783012 DOI: 10.3390/molecules27248900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
The noncovalent interactions of (5,10,15,20-tetra(4-methylphenyl)porphinato)cobalt(II) (CoTTP) with C60 and 1-N-methyl-2-(pyridin-4-yl)-3,4-fullero[60]pyrrolidine (PyC60) were studied in toluene using absorption and fluorescence titration methods. The self-assembly in the 2:1 complexes (the triads) (C60)2CoTTP and (PyC60)2CoTTP was established. The bonding constants for (C60)2CoTTP and (PyC60)2CoTTP are defined to be (3.47 ± 0.69) × 109 and (1.47 ± 0.28) × 1010 M-2, respectively. 1H NMR, IR spectroscopy, thermogravimetric analysis and cyclic voltammetry data have provided very good support in favor of efficient complex formation in the ground state between fullerenes and CoTTP. PyC60/C60 fluorescence quenching in the PyC60/C60-CoTTP systems was studied and the fluorescence lifetime with various CoTTP additions was determined. The singlet oxygen quantum yield was determined for PyC60 and the intensity decrease in the 1O2 phosphorescence for C60 and PyC60 with the CoTTP addition leading to the low efficiency of intercombination conversion for the formation of the 3C60* triplet excited state was found. Using femtosecond transient absorption measurements in toluene, the photoinduced electron transfer from the CoTTP in the excited singlet state to fullerene moiety was established. Quantum chemical calculations were used for the determination of molecular structure, stability and the HOMO/LUMO energy levels of the triads as well as to predict the localization of frontier orbitals in the triads.
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Affiliation(s)
- Nataliya G. Bichan
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya Str. 1, 153045 Ivanovo, Russia
| | - Ekaterina N. Ovchenkova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya Str. 1, 153045 Ivanovo, Russia
| | - Varvara A. Mozgova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya Str. 1, 153045 Ivanovo, Russia
| | - Alexander A. Ksenofontov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya Str. 1, 153045 Ivanovo, Russia
| | - Nadezhda O. Kudryakova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya Str. 1, 153045 Ivanovo, Russia
| | - Ivan V. Shelaev
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, Kosigin Str. 4, 119991 Moscow, Russia
| | - Fedor E. Gostev
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, Kosigin Str. 4, 119991 Moscow, Russia
| | - Tatyana N. Lomova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya Str. 1, 153045 Ivanovo, Russia
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Lewandowska-Andralojc A, Gacka E, Pedzinski T, Burdzinski G, Lindner A, O'Brien JM, Senge MO, Siklitskaya A, Kubas A, Marciniak B, Walkowiak-Kulikowska J. Understanding structure-properties relationships of porphyrin linked to graphene oxide through π-π-stacking or covalent amide bonds. Sci Rep 2022; 12:13420. [PMID: 35927398 PMCID: PMC9352710 DOI: 10.1038/s41598-022-16931-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/18/2022] [Indexed: 11/09/2022] Open
Abstract
Two graphene oxide nanoassemblies using 5-(4-(aminophenyl)-10,15,20-triphenylporphyrin (TPPNH2) were fabricated by two synthetic methods: covalent (GO-CONHTPP) and noncovalent bonding. GO-CONHTPP was achieved through amide formation at the periphery of GO sheets and the hybrid material was fully characterized by FTIR, XPS, Raman spectroscopy, and SEM. Spectroscopic measurements together with theoretical calculations demonstrated that assembling TPPNH2 on the GO surface in DMF-H2O (1:2, v/v) via non-covalent interactions causes changes in the absorption spectra of porphyrin, as well as efficient quenching of its emission. Interestingly, covalent binding to GO does not affect notably neither the porphyrin absorption nor its fluorescence. Theoretical calculations indicates that close proximity and π-π-stacking of the porphyrin molecule with the GO sheet is possible only for the non-covalent functionalization. Femtosecond pump-probe experiments revealed that only the non-covalent assembly of TPPNH2 and GO enhances the efficiency of the photoinduced electron transfer from porphyrin to GO. In contrast to the non-covalent hybrid, the covalent GO-CONHTPP material can generate singlet oxygen with quantum yields efficiency (ΦΔ = 0.20) comparable to that of free TPPNH2 (ΦΔ = 0.26), indicating the possible use of covalent hybrid materials in photodynamic/photothermal therapy. The spectroscopic studies combined with detailed quantum-chemical analysis provide invaluable information that can guide the fabrication of hybrid materials with desired properties for specific applications.
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Affiliation(s)
- Anna Lewandowska-Andralojc
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland. .,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland.
| | - Ewelina Gacka
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Tomasz Pedzinski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Gotard Burdzinski
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614, Poznan, Poland
| | - Aleksandra Lindner
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Jessica M O'Brien
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Mathias O Senge
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland.,Institute for Advanced Study (TUM-IAS), Focus Group-Molecular and Interfacial Engineering of Organic Nanosystems, Technical University of Munich, 85748, Garching, Germany
| | - Aleksandra Siklitskaya
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Adam Kubas
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Bronislaw Marciniak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
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5
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Monteiro AR, Ramos CIV, Lourenço LMO, Fateixa S, Rodrigues J, Neves MGPMS, Trindade T. Interfacial assembly of zinc(II) phthalocyanines on graphene oxide (GO): Stable "turn-off-on" nanoplatforms to detect G-quadruplexes (G4). J Colloid Interface Sci 2022; 627:900-912. [PMID: 35901569 DOI: 10.1016/j.jcis.2022.07.075] [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: 03/25/2022] [Revised: 06/29/2022] [Accepted: 07/12/2022] [Indexed: 10/17/2022]
Abstract
HYPOTHESIS The aggregation of phthalocyanines (Pcs) enfeebles their suitability as G-quadruplex (G4) ligands over time. It is hypothesized that the interfacial assembly of Pcs on graphene oxide (GO) influences intermolecular interactions, thereby affecting their physicochemical properties and inducing stabilization of Pcs in solution. Hence, the stacking of Pcs on GO could be tuned to create nanosystems with the ability to detect G4 for longer periods through a slow release of Pcs. EXPERIMENTS Four cationic structurally-related zinc(II) phthalocyanines (ZnPc) were non-covalently assembled on GO by ultrasonic exfoliation. A comprehensive characterization of ZnPcs@GO was carried out by spectroscopic techniques and electron microscopy to understand the organization of ZnPcs on GO. The fluorescence of ZnPcs@GO was studied in the presence of G4 (T2G5T)4 and duplex ds26 through spectrofluorimetric titrations and monitored along time. FINDINGS GO induced a re-organization of the ZnPcs mostly to J-aggregates and quenched their original fluorescence up to 98 % ("turn-off"). In general, ZnPcs@GO recovered their fluorescence ("turn-on") after the titrations and showed affinity to G4 (KD up to 1.92 μM). This is the first report that highlights the contribution of GO interfaces to assemble ZnPcs and allow their slow and controlled release to detect G4 over longer periods.
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Affiliation(s)
- Ana R Monteiro
- CICECO, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Catarina I V Ramos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Leandro M O Lourenço
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Sara Fateixa
- CICECO, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Joana Rodrigues
- I3N, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Maria G P M S Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tito Trindade
- CICECO, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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6
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Yuan R, Zhao L, Wei Y, Chen Y, Tang M, Xue Z, Wang A, Zhang J. Substituent effects of symmetric cobalt porphyrins using graphene oxide as substrate on catalytic oxygen reduction reactions. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Chen S, Li K, Liu H, Zhang J, Peng T. Efficient CO2 reduction over a Ru-pincer complex/TiO2 hybrid photocatalyst via direct Z-scheme mechanism. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01840j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solar-driven CO2 conversion to hydrocarbon fuels is a feasible way to solve the increasingly serious energy problem and greenhouse effect. Herein, we fabricate a novel hybrid photocatalyst for CO2 reduction...
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8
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Pallikkara A, Sebastian D, Ramakrishnan K. An Investigation on the Effect of Extended Conjugation on the Photophysical Properties of Graphene Quantum Dot‐Porphyrin Dyads. ChemistrySelect 2021. [DOI: 10.1002/slct.202103199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Athira Pallikkara
- Department of Applied Chemistry Cochin University of Science and Technology Kochi 682022 Kerala India
| | - Deepa Sebastian
- Department of Applied Chemistry Cochin University of Science and Technology Kochi 682022 Kerala India
| | - Kala Ramakrishnan
- Department of Applied Chemistry Cochin University of Science and Technology Kochi 682022 Kerala India
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9
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Siklitskaya A, Gacka E, Larowska D, Mazurkiewicz-Pawlicka M, Malolepszy A, Stobiński L, Marciniak B, Lewandowska-Andrałojć A, Kubas A. Lerf-Klinowski-type models of graphene oxide and reduced graphene oxide are robust in analyzing non-covalent functionalization with porphyrins. Sci Rep 2021; 11:7977. [PMID: 33846412 PMCID: PMC8041773 DOI: 10.1038/s41598-021-86880-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/19/2021] [Indexed: 12/21/2022] Open
Abstract
Graphene-based nanohybrids are good candidates for various applications. However, graphene exhibits some unwanted features such as low solubility in an aqueous solution or tendency to aggregate, limiting its potential applications. On the contrary, its derivatives, such as graphene oxide (GO) and reduced graphene oxide (RGO), have excellent properties and can be easily produced in large quantities. GO/RGO nanohybrids with porphyrins were shown to possess great potential in the field of photocatalytic hydrogen production, pollutant photodegradation, optical sensing, or drug delivery. Despite the rapid progress in experimental research on the porphyrin-graphene hybrids some fundamental questions about the structures and the interaction between components in these systems still remain open. In this work, we combine detailed experimental and theoretical studies to investigate the nature of the interaction between the GO/RGO and two metal-free porphyrins 5,10,15,20-tetrakis(4-aminophenyl) porphyrin (TAPP) and 5,10,15,20-tetrakis(4-hydroxyphenyl) porphyrin (TPPH)]. The two porphyrins form stable nanohybrids with GO/RGO support, although both porphyrins exhibited a slightly higher affinity to RGO. We validated finite, Lerf-Klinowski-type (Lerf et al. in J Phys Chem B 102:4477, 1998) structural models of GO ([Formula: see text]) and RGO ([Formula: see text]) and successfully used them in ab initio absorption spectra simulations to track back the origin of experimentally observed spectral features. We also investigated the nature of low-lying excited states with high-level wavefunction-based methods and shown that states' density becomes denser upon nanohybrid formation. The studied nanohybrids are non-emissive, and our study suggests that this is due to excited states that gain significant charge-transfer character. The presented efficient simulation protocol may ease the properties screening of new GO/RGO-nanohybrids.
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Affiliation(s)
- Alexandra Siklitskaya
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Ewelina Gacka
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Daria Larowska
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
| | - Marta Mazurkiewicz-Pawlicka
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645, Warsaw, Poland
| | - Artur Malolepszy
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645, Warsaw, Poland
| | - Leszek Stobiński
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645, Warsaw, Poland
- NANOMATERIALS Leszek Stobinski (www.nanomaterials.pl), Warsaw, Poland
| | - Bronisław Marciniak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Anna Lewandowska-Andrałojć
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland.
| | - Adam Kubas
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland.
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10
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Larowska D, O’Brien JM, Senge MO, Burdzinski G, Marciniak B, Lewandowska-Andralojc A. Graphene Oxide Functionalized with Cationic Porphyrins as Materials for the Photodegradation of Rhodamine B. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:15769-15780. [PMID: 33133329 PMCID: PMC7590516 DOI: 10.1021/acs.jpcc.0c03907] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/18/2020] [Indexed: 06/11/2023]
Abstract
Two noncovalent nanohybrids between cationic porphyrin (free-base TMPyP and zinc(II) ZnTMPyP) bearing cationic (N-methylpyridyl) groups and graphene oxide (GO) were constructed with the aim of generating a photocatalyst active for rhodamine B (RhB) degradation. The obtained materials were thoroughly characterized by steady-state and time-resolved absorption and emission methods, which indicated that metalation of the porphyrin with Zn(II) increases the affinity of the porphyrin toward the GO surface. Photocurrent experiment together with femtosecond transient absorption spectroscopy clearly showed the existence of electron transfer from the photoexcited porphyrin to GO. Both hybrid materials demonstrated higher photocatalytic activity toward RhB degradation as compared to GO; however, ZnTMPyP-GO exhibited more efficient performance (19% of RhB decomposition after 2 h of irradiation). Our data indicate that the presence of Zn(II) in the core of the porphyrin can promote charge separation in the ZnTMPyP-GO composites. The higher degradation rate seen with ZnTMPyP-GO as compared to the TMPyP-GO assemblies highlights the beneficial role of Zn(II)-metalation of the porphyrin ring.
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Affiliation(s)
- Daria Larowska
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Jessica M. O’Brien
- School
of Chemistry, Trinity Biomedical Sciences Institute, Trinity College
Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Mathias O. Senge
- School
of Chemistry, Trinity Biomedical Sciences Institute, Trinity College
Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Gotard Burdzinski
- Faculty
of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614 Poznan, Poland
| | - Bronisław Marciniak
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Center
for Advanced Technology, Adam Mickiewicz
University, Uniwersytetu
Poznanskiego 10, 61-614 Poznan, Poland
| | - Anna Lewandowska-Andralojc
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Center
for Advanced Technology, Adam Mickiewicz
University, Uniwersytetu
Poznanskiego 10, 61-614 Poznan, Poland
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