Photochemical stability of g-C3N4 in the gas phase

Paušová, Šárka; Baudys, Michal; Kosina, Jiří; Praus, Petr; Pintar, Albin; Žerjav, Gregor; Roškarič, Matevž; Finšgar, Matjaž; Krýsa, Josef

doi:10.1016/j.jece.2022.107647

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…It exhibits a high photocatalytic energy conversion due to the “exotic” layered structure . This makes g-C 3 N 4 a hot-topic material in the photocatalysis research field. , The main drawback of g-C 3 N 4 is its low specific surface area; in addition, its charge carrier recombination rate is also high . For this reason, new strategies and concepts are increasingly being applied, such as volume photocatalysis, which combines the principles of heterogeneous and homogeneous catalysis.…”

Section: Introductionmentioning

confidence: 99%

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C₃N₄

Roškarič,

Zavašnik,

Zámbó

et al. 2023

ACS Catal.

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The main objective of the present study was to increase the specific surface area (S BET) of graphitic carbon nitride (g-C3N4) prepared from dicyandiamide by effectively modifying the synthesis procedure using the Simplex optimization method. A remarkable increase in S BET was achieved in only a few steps, with the highest value of 86 m2/g. Compared to the reference material, the improved photocatalyst exhibited enhanced and unique structural, textural, optical, and electronic properties, reflected in the improved ability of the photocatalyst to degrade a variety of organic pollutants dissolved in water. By performing scavenger and spin-trapping experiments, it was confirmed that the major reactive oxygen species formed under visible-light illumination of the enhanced photocatalyst were singlet oxygen (1O2) and superoxide anion radicals (O2 –•) with a purposed formation mechanism. The enhanced formation of 1O2 enabled high activity and stability of the optimized materials as well as selective response to degradation of the pharmaceutical compounds studied. By using the simple and fast Simplex optimization algorithm to determine new synthesis parameters, we obtained an improved g-C3N4 that completely degrades bisphenol A under the conditions studied.

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Section: Introductionmentioning

confidence: 99%

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C₃N₄

Roškarič,

Zavašnik,

Zámbó

et al. 2023

ACS Catal.

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Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Wang,

Pang,

et al. 2024

Luminescence

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Graphene oxide (GO) and copper nanoparticles (Cu NPs) were incorporated to modulate and enhance the fluorescence properties of pegylated graphite phase carbon nitride (g‐C3N4‐PEG). Combined with the specific recognition capability of a molecular imprinted polymer (MIP), a highly sensitive and selective fluorescent molecular imprinted probe for dopamine detection was developed. The fluorescent g‐C3N4‐PEG was synthesized from melamine and modified with GO and Cu NPs to obtain GO/g‐C3N4‐PEG@Cu NPs. Subsequently, MIP was prepared on the surface of GO/g‐C3N4‐PEG@Cu NPs using dopamine as the template molecule. Upon elution of the template molecule, a dopamine‐specific GO/g‐C3N4‐PEG@Cu NPs/MIP fluorescence probe was obtained. The fluorescence intensity of the probe was quenched through the adsorption of different concentrations of dopamine by the MIP, thus establishing a novel method for the detection of dopamine. The linear range of dopamine detection was from 5 × 10−11 to 6 × 10−8 mol L−1, with a detection limit of 2.32 × 10−11 mol L−1. The sensor was utilised for the detection of dopamine in bananas, achieving a spiked recovery rate between 90.3% and 101.3%. These results demonstrate that the fluorescence molecular imprinted sensor developed in this study offers a highly sensitive approach for dopamine detection in bananas.

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Boron and nitrogen co-doped carbon-based nanomaterials/nickel oxide/hydroxide hybrids for sunlight induced photocatalytic water cleaning

Lebière,

Ivan,

Pérez del Pino

et al. 2023

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Photochemical stability of g-C3N4 in the gas phase

Cited by 4 publications

References 27 publications

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C₃N₄

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C₃N₄

Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Boron and nitrogen co-doped carbon-based nanomaterials/nickel oxide/hydroxide hybrids for sunlight induced photocatalytic water cleaning

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Photochemical stability of g-C3N4 in the gas phase

Cited by 4 publications

References 27 publications

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C3N4

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C3N4

Fluorescent probe based on GO/g‐C3N4‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Boron and nitrogen co-doped carbon-based nanomaterials/nickel oxide/hydroxide hybrids for sunlight induced photocatalytic water cleaning

Contact Info

Product

Resources

About

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C₃N₄

Optimization Method Based on Simplex for Surface Area Improved Photocatalytic Performance of g-C₃N₄

Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana