Surface <i>vs.</i> core N/S/Se-heteroatom doping of carbon nanodots produces divergent yet consistent optical responses to reactive oxygen species

Geng, Xu; Congdon, Thomas R.; Anees, Palapuravan; Greschner, Andrea A.; Gauthier, Marc A.

doi:10.1039/d0na00439a

Cited by 3 publications

(1 citation statement)

References 39 publications

(53 reference statements)

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“…However, without dopants, they exhibit a small bandgap and low photon harvesting efficiency and thus are ineffective 1 O 2 sensitizers . The introduction of metal and nonmetal atoms into the carbon matrix could promote their chemical, catalytic, and photocatalytic properties − through charge delocalization. For example, in 2013, nitrogen- and boron-doped graphene was demonstrated as good photocatalysts for the aerobic oxidation of various organic materials .…”

Section: Carbon Dots and Graphene Quantum Dotsmentioning

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: Carbon Dots and Graphene Quantum Dotsmentioning

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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How can heteroatoms boost the performance of photoactive nanomaterials for wastewater purification?

Majnis,

Mohd Adnan,

Yeap

et al. 2024

Journal of Environmental Management

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Rapid detection of silver ions based on luminescent carbon nanodots for multicolor patterning, smartphone sensors, and bioimaging applications

et al. 2021

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Surface vs. core N/S/Se-heteroatom doping of carbon nanodots produces divergent yet consistent optical responses to reactive oxygen species

Abstract: Carbon nanodots (CNDs) have attracted substantial scientific curiosity because of their intriguing stimuli-responsive optical properties. However, one obstacle to the more widespread use of CNDs as transducers for e.g., biodetection...

Cited by 3 publications

References 39 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

How can heteroatoms boost the performance of photoactive nanomaterials for wastewater purification?

Rapid detection of silver ions based on luminescent carbon nanodots for multicolor patterning, smartphone sensors, and bioimaging applications

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