Porous framework materials for singlet oxygen generation

Hynek, Jan; Chahal, Mandeep K.; Payne, Daniel T.; Labuta, Jan; Hill, Jonathan P.

doi:10.1016/j.ccr.2020.213541

Cited by 54 publications

(19 citation statements)

References 111 publications

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“…Immobilized dyes for antimicrobial applications are previously reported. ,− The effect of immobilization and surface plasmon on the amount of 1 O 2 generation is further reviewed. It is worth mentioning that metal–organic frameworks (MOFs) of porphyrins as well as conjugated polymers for the heterogeneous production of 1 O 2 have been widely discussed in previous works. ,− …”

Section: Immobilized Dyesmentioning

confidence: 99%

Singlet Oxygen Photosensitization Using Graphene-Based Structures and Immobilized Dyes: A Review

Tamtaji

Tyagi

You

et al. 2021

ACS Appl. Nano Mater.

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Singlet oxygen (1O2) has been widely produced utilizing nanostructure-based photocatalysts, purposed for photodynamic therapy (PDT), wastewater treatment, and photo-oxygenation reactions. A rational design of heterogeneous photocatalysts is important for a high 1O2 quantum yield under visible-light or near-infrared irradiation. The present review provides insights for graphene-based photocatalyst design by summarizing the mechanism and fundamental aspects of 1O2 sensitization, as well as offers a summary of experimental realization. Subsequently, we go through works done on light-driven 1O2 sensitization utilizing graphitic carbon nitride, carbon dots, graphene quantum dots, and graphene oxide, as well as immobilized organic dyes on polymeric and silica supports, followed by their applications. Moreover, the effect of surface passivation, hybridization with other materials, doping with metal or nonmetal atoms, plasmonic fields, and self-assembly aggregation on the 1O2 quantum yield and 1O2 enhancement factor is discussed. We also provide perspectives for the 1O2 sensitization including applying machine learning (ML) to optimize the plasmonic field and 1O2 quantum yield.

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Section: Immobilized Dyesmentioning

confidence: 99%

Singlet Oxygen Photosensitization Using Graphene-Based Structures and Immobilized Dyes: A Review

Tamtaji

Tyagi

You

et al. 2021

ACS Appl. Nano Mater.

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“…1) with appropriate properties for implementation of the aforementioned applications with other new classes of compound also appearing. 9 1 O 2 -generating properties of these compounds can be screened and assessed by simple comparison with a reference material whose properties under equivalent conditions are known. 10 Since applications such as PDT are conducted in aqueous media, this requires the availability of water-soluble reference compounds although methods exist for estimating the 1 O 2 quantum yield ( Φ SO ) between different media.…”

Section: Introductionmentioning

confidence: 99%

Nonionic omnisoluble photosensitizer reference material for the estimation of singlet oxygen quantum yield

Payne

Hynek

Labuta

et al. 2022

Phys. Chem. Chem. Phys.

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“…Singlet oxygen ( 1 O 2 ) has a higher energetic state where the spin electrons are paired, which is an important reactive oxygen species (ROS) with selectivity and reactivity higher than those of the 3 ∑ g ground state of O 2 , and degradation of pollutants. , 1 O 2 can be produced in conventional reactions or through photosensitization pathways, particularly by using dye photosensitizers that promote intersystem crossing from triplet to singlet states of 1 O 2 .…”

Section: Introductionmentioning

confidence: 99%

An Isopolymolybdate-Incorporated Metal–Organic Framework with Sulfite Oxidase-Mimicking Activity for Photocatalytic Oxidation of Sulfides Utilizing In Situ-Generated Singlet Oxygen

et al. 2021

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Developing new photocatalysts for sulfide oxidation utilizing in situ-generated 1 O 2 is very significant. Inspired by natural enzymatic processes, we synthesized a mimic sulfite oxidase (SO), {[Co(Mo 4 O 13 )(TPT) 2 ]} (CoMo-TPT), by incorporating an isopolymolybdate anion [Mo 4 O 13 ] 2− into a 2,4,6tri(4-pyridyl)-1,3,5-triazine (TPT)-based metal−organic framework under mild hydrothermal conditions. In this structure, {Mo 4 O 13 } units with intrinsic SO-like catalytic sites are beneficial for the selective oxidation of sulfite and thioether. The ultraviolet−visible spectra of CoMo-TPT exhibited strong absorption from 250 to 650 nm and potential application in the utilization of solar energy. Mott− Schottky measurements indicated that CoMo-TPT is an n-type semiconductor with a LUMO value of −0.70 V (vs NHE) and a HOMO value of 1.39 V. The transient photocurrent responses with strong current density cycles with visible light indicated CoMo-TPT has a high photochemical activity. The lower resistance indicated that CoMo-TPT has a higher efficiency of photoinduced electron and hole separation. CoMo-TPT displayed a high efficiency of 99% and a selectivity of 97.3% in photocatalytic oxidation of sulfides by utilizing in situ-generated 1 O 2 through a tandem process of formation of H 2 O 2 from O 2 followed by catalyzed disproportionation of H 2 O 2 .

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Porous framework materials for singlet oxygen generation

Cited by 54 publications

References 111 publications

Singlet Oxygen Photosensitization Using Graphene-Based Structures and Immobilized Dyes: A Review

Singlet Oxygen Photosensitization Using Graphene-Based Structures and Immobilized Dyes: A Review

Nonionic omnisoluble photosensitizer reference material for the estimation of singlet oxygen quantum yield

An Isopolymolybdate-Incorporated Metal–Organic Framework with Sulfite Oxidase-Mimicking Activity for Photocatalytic Oxidation of Sulfides Utilizing In Situ-Generated Singlet Oxygen

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