Adsorption and photocatalytic applications of porphyrin-based materials for environmental separation processes: A review

Gkika, Despina A.; Ladomenou, Kalliopi; Bououdina, Mohamed; Mitropoulos, Athanasios C.; Kyzas, George Z.

doi:10.1016/j.scitotenv.2023.168293

Cited by 10 publications

(5 citation statements)

References 144 publications

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“…Well-organized porphyrin nanostructures show enhanced photocatalytic performance compared to amorphous (monomeric) porphyrins. 40,124–126 This improvement is due to the fact that porphyrin aggregates with a distinct molecular arrangement offer better charge separation capabilities than the monomeric forms. The self-assembly of porphyrins was proven to be an effective method for the fabrication of nanostructured porphyrin-based materials with adjustable morphologies and functionalities.…”

Section: Photocatalytic Activity Of Por and Gbm Hybridsmentioning

confidence: 99%

“…in photovoltaics, medicine, catalysis, sensing or information storage. 32,38–40 For example, Por anchored to a wide-bandgap semiconductor are responsible for the absorption of solar radiation in dye-sensitized solar cells and their electrochemical, photophysical, ground- and excited-state properties essentially govern charge-transfer dynamics at the dye/semiconductor interface. 41 Due to the efficient generation of long-lived triplet states, Por are broadly used as photosensitizers in photodynamic therapy (PDT) during cancer treatment.…”

Section: Introductionmentioning

confidence: 99%

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When porphyrins meet 2D materials: spectroscopic and photocatalytic properties

Lindner,

Lesniewicz,

Kolman

et al. 2024

J. Mater. Chem. C

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Section: Photocatalytic Activity Of Por and Gbm Hybridsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

When porphyrins meet 2D materials: spectroscopic and photocatalytic properties

Lindner,

Lesniewicz,

Kolman

et al. 2024

J. Mater. Chem. C

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“…For example, the porphyrin ring in chlorophyll captures photons of light, initiating the process of converting light energy into chemical energy, which fuels plant growth and sustains life on Earth [23]. Moreover, porphyrins find diverse applications in scientific research, from medical and therapeutic fields to energy-related studies [24][25][26][27][28][29][30]. More specifically, synthetic porphyrins have become of particular interest in medicinal chemistry because they can form chelating compounds with certain toxic heavy metals or radioisotopes that emit gamma rays [22].…”

Section: Introductionmentioning

confidence: 99%

Anti-Inflammatory and Antithrombotic Potential of Metal-Based Complexes and Porphyrins

Tsoupras,

Pafli,

Stylianoudakis

et al. 2024

Compounds

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Inflammation and thrombosis are implicated in several chronic disorders. Recent studies have outlined the way in which several compounds can offer protection against inflammation. Within this comprehensive review the so-far reported anti-inflammatory health-promoting effects of several metal-based complexes, both in vitro and in vivo, are thoroughly presented. These metal-based compounds usually interfere with various biochemical processes associated with the inflammatory response and thrombus formation and become capable of inhibiting these biochemical pathways with proposed health benefits. Emphasis is given to the multifaceted actions of metal-based complexes that have exhibited potent anti-inflammatory and antithrombotic activities against the inflammatory mediator, platelet-activating factor (PAF), and its thrombo-inflammatory signaling, as well as on their anti-platelet and antitumor health promoting properties. Furthermore, the enhancement of the anti-inflammatory potency of well-established bioactive compounds by their incorporation as ligands in several metal-based complexes is discussed. Metal-based complexes bearing natural anti-inflammatory bioactives are also outlined. Characteristic examples of both free and metal-based porphyrins are explored. These compounds are recognized to have anti-inflammatory and antithrombotic assets, in addition to other pleiotropic advantages including antibacterial or anticancer actions. Additionally, applications of metal complexes in various models of inflammatory and thrombotic complications are demonstrated. The combined results of this study show that further research is required towards the preparation of several metal-based complexes with improved pharmacological profiles. Finally, restrictions on the application of these metal-based compounds are also covered, along with their prospects for the future and the need for additional study in order to improve their efficacy and safety.

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“…The immobilization of metalloporphyrins on chemical supports and their use in heterogeneous catalytic processes appears as an alternative to overcome the limitations inherent to homogeneous systems. − A variety of supports, both organic and inorganic, have been used to anchor (immobilize and support) metalloporphyrins. Inorganic supports have an advantage over organic polymers because they are more resistant to oxidative processes, more robust, more rigid, thermally stable, and resistant to organic solvents, and the immobilization reaction conditions are simpler. ,,− …”

Section: Introductionmentioning

confidence: 99%

“…Inorganic supports have an advantage over organic polymers because they are more resistant to oxidative processes, more robust, more rigid, thermally stable, and resistant to organic solvents, and the immobilization reaction conditions are simpler. 16 , 18 , 21 − 26 …”

Section: Introductionmentioning

confidence: 99%

Degradation of Dyes Catalyzed by Aminophenyl-Substituted Mn-Porphyrin Immobilized on Chloropropyl Silica Gel and Evaluation of Phytotoxicity

de Oliveira,

Docílio Pereira,

da Silva Pereira

et al. 2024

ACS Omega

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A heterogenized Mn(III) porphyrin-based catalyst was prepared for dye degradation. The new Mn(III) complex of 5,15-bis(4-aminophenyl)-10,20-diphenylporphyrin was immobilized, via covalent bond, in chloropropyl silica gel, generating the material (Sil-Cl@MnP) with a loading of 23 μmol manganese porphyrin (MnP) per gram of Sil-Cl. This material was used as a catalyst in degradation reactions of model dyes, a cationic dye [methylene blue (MB)] and an anionic dye (reactive red 120, RR120), using PhI(OAc) 2 and H 2 O 2 as oxidants. The oxidation reactions were carried out after the dye reached adsorption/ desorption equilibrium with the catalytic material, with a much higher percentage of adsorption being observed for the cationic MB dye (20%) than for the anionic RR120 dye (3%), which may be associated with electrostatic attraction or repulsion effects, respectively, with the negatively charged surface of the silica (zeta potential measurement for Sil-Cl@MnP, ζ = −19.2 mV). In general, there was a higher degradation percentage for MB than for RR120, probably because the size and charge of RR120 would hinder its approach to the MnP active species on the silica surface. With respect to the oxidant, the PhI(OAc) 2 -based systems showed a higher degradation percentage than those of H 2 O 2 . It was observed that the increase in the oxidant concentration promoted a significant increase in the degradation of MB, with a degradation of approximately 65%. The efficiency of the catalyst was also evaluated after successive additions of the oxidant every 2 h, and it can be seen that the catalyst had no loss of efficiency, with a degradation percentage greater than 80% being observed after 8 h of reaction. The phytotoxicity of the products formed in the system was evaluated in a 1:23.5:188 molar ratio Sil-Cl@MnP: MB:PhI(OAc) 2 was used. In these studies, phytotoxicity was found for the germination of lettuce seeds when the original solution was used without dilution; however, when diluted (10% V/V), the results were close to the positive and negative controls. Thus, the material obtained proved to be a potential candidate for application in the degradation reactions of environmental pollutants.

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Adsorption and photocatalytic applications of porphyrin-based materials for environmental separation processes: A review

Cited by 10 publications

References 144 publications

When porphyrins meet 2D materials: spectroscopic and photocatalytic properties

When porphyrins meet 2D materials: spectroscopic and photocatalytic properties

Anti-Inflammatory and Antithrombotic Potential of Metal-Based Complexes and Porphyrins

Degradation of Dyes Catalyzed by Aminophenyl-Substituted Mn-Porphyrin Immobilized on Chloropropyl Silica Gel and Evaluation of Phytotoxicity

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