Pd nanoparticle-decorated covalent organic frameworks for enhanced photocatalytic tetracycline hydrochloride degradation and hydrogen evolution

Liu, Bo; Liu, Luqiong; Hu, Xiaodong; Weng, Baicheng

doi:10.1039/d3cc01425h

Cited by 11 publications

(3 citation statements)

References 25 publications

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“…Porous organic polymers (POPs), a novel lightweight porous material with stable backbone structure, ultrahigh specific surface area, and tunable pore functionality [22][23][24][25] , are also suitable candidates as metal NP supports [26,27] . The tunable groups in the POP structure can act as anchoring sites for metal NPs, effectively preventing their aggregation [28][29][30] . In addition, the abundant porous structure facilitates the diffusion and contact of organic pollutant molecules with metal NPs on the catalyst surface.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of Ag/AgCl/PAF-54 heterojunction photocatalysts for TC degradation

Lin,

Gan,

Zhao

et al. 2024

Chem Synth

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Photocatalysis plays an increasingly important role in the field of water treatment. Among the catalysts, Ag nanoparticles (NPs), a type of noble metal NP, show extraordinary potential for photocatalysis. Nevertheless, the aggregation caused by high surface energy limits their applications. The simple synthesis of Ag NPs with uniform size remains a challenge. In this work, a nitrogen-rich porous organic polymer (POP) with reduction ability, porous aromatic framework (PAF)-54, was chosen as the carrier for the in-situ synthesis of Ag NPs. By virtue of the reducing framework of PAF-54 and the formation of the AgCl/PAF-54 heterojunction, the in-situ reduction of Ag(I) was realized, and thus Ag NPs with the particle size of 20-25 nm were uniformly distributed on PAF-54, which exhibit a strong localized surface plasmon resonance (LSPR) effect. Furthermore, the Ag/AgCl/PAF-54 heterojunction effectively suppresses the recombination of photogenerated electrons and holes, leading to the enhanced photocatalytic ability of the composite material. Even with a small catalyst dosage, rapid tetracycline (TC) degradation can be achieved, and the degradation rate of TC reached 94.8% in 30 min. This study offers a facilitated approach for fabricating Ag-based POP composites with superior photocatalytic properties.

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Section: Introductionmentioning

confidence: 99%

Facile synthesis of Ag/AgCl/PAF-54 heterojunction photocatalysts for TC degradation

Lin,

Gan,

Zhao

et al. 2024

Chem Synth

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“…The construction of excellent heterojunctions with appropriate cocatalysts is an effective approach for promoting interfacial charge transfer and enhancing the separation of charge carriers [6][7][8][9]. Additionally, the discovery and utilization of various photocatalysts, such as ZnIn 2 S 4 [10,11], BiVO 3 [12], metal-organic frameworks (MOF) [13,14], and covalent organic framework (COF) [15,16], has been a major area of research in this field. These materials have shown great promise due to their efficiency and stability, making them attractive alternatives to traditional photocatalysts such as TiO 2 and ZnO.…”

Section: Introductionmentioning

confidence: 99%

The Synergistic Effect in CdS/g-C3N4 Nanoheterojunctions Improves Visible Light Photocatalytic Performance for Hydrogen Evolution Reactions

Niu,

Shen,

Guo

et al. 2023

Molecules

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This study focuses on the development of heterojunction photocatalysts for the efficient utilization of solar energy to address the energy crisis and reduce environmental pollution. Cadmium sulfide (CdS)/graphite-type carbon nitride (g-C3N4) nanocomposites were synthesized using a hydrothermal method, and their photoelectrochemical properties and photocatalytic performance for hydrogen evolution reaction (HER) were characterized. Scanning electron microscope images showed the intimate interface and caviar-like nanoheterojunction of the CdS nanoparticles on g-C3N4 nanospheres, suggesting their potential involvement in the photocatalytic process. Electrochemical and spectroscopic analyses were conducted to confirm the roles of CdS in the nanoheterojunction. The results showed that 10 wt% CdS/g-C3N4 nanospheres exhibited higher photocatalytic activity than pure g-C3N4 under visible light irradiation. A HER rate of 655.5 μmol/g/h was achieved after three photocatalytic cycles, signifying good photocatalytic stability. The synergistic effect of the Z-scheme heterojunction formed by g-C3N4 and CdS was identified as the main factor responsible for the enhanced photocatalytic performance and stability. The interface engineering effect of CdS/g-C3N4 facilitated the separation of photogenerated electrons and holes. This study provides insights into the design and fabrication of efficient HER photocatalysts.

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“…6 Metal oxides (MnO 2 , Fe 2 O 3 , etc . ), 7–9 bismuth-based photocatalysts, 10–13 metal–organic frameworks (MOFs), 14,15 covalent organic frameworks (COFs) 16 and carbon-based composites (g-C 3 N 4 , graphene, etc .) 17,18 have been explored for the photocatalytic degradation of TC.…”

Section: Introductionmentioning

confidence: 99%

Highly porous BiOBr@NU-1000 Z-scheme heterojunctions for synergistic efficient adsorption and photocatalytic degradation of tetracycline

Zhang,

Meng,

Lei

et al. 2023

Dalton Trans.

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Pd nanoparticle-decorated covalent organic frameworks for enhanced photocatalytic tetracycline hydrochloride degradation and hydrogen evolution

Abstract: In this study, we synthesized novel bipyridine-based, sp2-carbon-linked COFs with the incorporation of ultra-small metal nanoparticles for enhanced photocatalytic tetracycline hydrochloride degradation and hydrogen evolution. The obtained photocatalyst exhibits strong...

Cited by 11 publications

References 25 publications

Facile synthesis of Ag/AgCl/PAF-54 heterojunction photocatalysts for TC degradation

Facile synthesis of Ag/AgCl/PAF-54 heterojunction photocatalysts for TC degradation

The Synergistic Effect in CdS/g-C3N4 Nanoheterojunctions Improves Visible Light Photocatalytic Performance for Hydrogen Evolution Reactions

Highly porous BiOBr@NU-1000 Z-scheme heterojunctions for synergistic efficient adsorption and photocatalytic degradation of tetracycline

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