Enhanced Photocatalytic Hydrogen Evolution and Antibacterial Activities of Ternary Chevrel Phases

Acar, Eminegül Genc; Kuru, Talha; Sarılmaz, Adem; Aksoy, İlknur; Yanalak, Gizem; Aslan, Emre; Özel, Sultan Süleyman; Karanfil, Gamze; Özel, Faruk; Patır, İmren Hatay

doi:10.1002/cctc.202201252

Cited by 5 publications

(3 citation statements)

References 90 publications

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“…For photothermal activity, it might be more advantageous and logical to damage bacteria with mild temperatures, as in previous studies by our group. 28,45,47 Bacterial biofilms are more resistant to environmental stress or toxic molecules, including antibiotics, than planktonic bacteria. More than half of bacterial infections are due to biofilms, which can occur on many suitable surfaces.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS₂ and BP/MoS₂ Nanocomposites under Near-Infrared Irradiation

Aksoy Çekceoğlu,

Eroğlu,

Genc Acar

et al. 2024

ACS Appl. Nano Mater.

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The development of multifunctional antibacterial materials based on semiconductor materials has become the focus of treatment in the field of antibiotic-resistant bacteria. Here, for the first time, the superb photocatalytic/ photothermal antibacterial activity of BP/MoS 2 and BP/WS 2 nanocomposites against both E. coli and S. aureus under near-infrared (NIR) or light-emitting diode (LED) illumination was demonstrated. Characterization studies using advanced instrumental techniques confirmed the successful formation of BP/WS 2 and BP/MoS 2 S-scheme heterojunctions with distinct structural, morphological, and compositional features. Moreover, it was verified that the enhanced photoantibacterial activity of both heterojunctions compared to their pristine analogs was demonstrated to be due to the synergistic interactions at the atomic level elucidated by Mo/W−S−P via a sulfur atom bridge in X-ray photoelectron spectroscopy analysis, which improves the charge flow and enhances the photocatalytic performance. Optical density measurements were performed to obtain bacterial growth over 4 h, where BP/WS 2 (≅88%) and BP/MoS 2 (≅83%) showed higher NIR light-driven antibacterial activity compared to the pristine analogs (BP nanosheets, WS 2 or MoS 2 nanostructures), which is attributed to the S-scheme heterojunctions formed between BP and MS 2 that enhance the production of ROS by promoting the use of light-induced carriers. The photo-antibacterial activities of BP/WS 2 and BP/MoS 2 heterojunctions reached 93% and 98%, respectively. The bacterial mechanical rupture effect of BP/WS 2 and BP/MoS 2 heterojunctions was monitored using SEM and E. coli was found to be more resistant to damage than S. aureus. The ability of BP/ WS 2 and BP/MoS 2 to generate reactive oxygen species (ROS) was better than that of pristine BP nanosheets, as demonstrated by a glutathione (GSH) oxidation assay. The photothermal activities of the nanocomposites were investigated to explain the photoinduced antibacterial mechanism. In addition, the photo-antibiofilm activities of BP/WS 2 and BP/MoS 2 heterojunctions were also investigated and the biofilm structure of S. aureus was almost completely eradicated under LED light irradiation.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS₂ and BP/MoS₂ Nanocomposites under Near-Infrared Irradiation

Aksoy Çekceoğlu,

Eroğlu,

Genc Acar

et al. 2024

ACS Appl. Nano Mater.

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“…[11][12][13] Furthermore, recent literature emphasizes the multifunctionality of Chevrel phases in their applications as photocatalysts or electrocatalysts to produce hydrogen. [14][15][16][17][18] Hence, the exploration of Chevrel phases assumes the greatest significance and holds the potential for finding innovative fields of application.…”

Section: Introductionmentioning

confidence: 99%

Establishing the NiMo₆Se₈ Chevrel Phase as a Promising Material Using DFT

Surucu,

Usanmaz

et al. 2024

Advcd Theory and Sims

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In this study, the NiMo6Se8 Chevrel phase is analyzed using Density Functional Theory (DFT) and the Vienna Ab‐initio Simulation Package (VASP). The analysis focuses on the phase's structural, electrical, and mechanical characteristics to fill gaps in the current literature. The presence of a rhombohedral crystal structure confirms its thermodynamic stability, as indicated by a negative formation enthalpy, which suggests that it can be synthesized under favorable conditions. The electronic properties of the phase are analyzed, indicating that it exhibits semiconductor characteristics with a bandgap of 1.07 eV. This makes it appropriate for various technological applications. The estimated elastic constants provide an indication of mechanical strength and flexibility, with a noticeable presence of anisotropic elasticity. The confirmation of dynamical stability is achieved by analyzing the phonon dispersion curve, which reveals the absence of any negative frequencies. Furthermore, the material has a low thermal conductivity, increasing its suitability for thermoelectric applications. The analysis emphasizes the versatile capabilities of the NiMo6Se8 Chevrel phase, especially in thermoelectric and energy storage applications, showcasing its promising potential for future technological implementation.

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“…[18] The M atoms could be monovalent, divalent, trivalent, or rare-earth elements resulting in several candidates for Chevrel phases. In the literature, these is an interest for the Chevrel phases for the photocatalytic water splitting [19][20][21][22] and in this study, the Ni x W 6 Se 8 (x = 1, 2, 3,4) Chevrel phase compounds are considered where the W atoms are to be replaced instead of the Mo atoms due to being in the same group on the periodic table. Also, the Chevrel phases with the Mo atoms are commonly considered in the literature and there is a lack of interest for the Chevrel phases with the W atoms.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Tungsten‐Based Seleno‐Chevrel Compounds with Different Compositions for Efficient Water Splitting

Dag¹,

Sürücü²,

Gençer³

et al. 2023

Advcd Theory and Sims

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This study investigates the photocatalytic water splitting performance for Chevrel phases with the chemical formula MxMo6Ch8, where M is a metal and Ch is a chalcogen, with x being 0, 1, 2, 3, or 4. Density Functional Theory (DFT) is used to study the Chevrel phases, which includes earth‐abundant elements for this specific study as an essential consideration for photocatalytic water splitting. The electronic properties are calculated for the NiW6Se8 and Ni2W6Se8 compounds with thermodynamical, mechanical, and dynamic stabilities. For photocatalytic water splitting, the band gaps below 1.23 eV are excluded, and the conduction and valence band levels are determined to examine the reduction and oxidation potentials for efficient photocatalytic water‐splitting materials. An examination of the selected band gaps, along with the conduction and valence band levels, reveals that NiW6Se8 is suitable for both reduction and oxidation reactions; whereas, Ni2W6Se8 is a convenient material only for the reduction reaction. This is the first attempt, as far as the literature reveals, to study Chevrel phases in detail and to identify a suitable compound for photocatalytic water splitting.

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Enhanced Photocatalytic Hydrogen Evolution and Antibacterial Activities of Ternary Chevrel Phases

Abstract: Chevrel phases consisted of abundant materials, are of great interest in a variety of energy conversion and storage technologies because of unique structural and electronic features. Herein, crystalline

Cited by 5 publications

References 90 publications

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS₂ and BP/MoS₂ Nanocomposites under Near-Infrared Irradiation

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS₂ and BP/MoS₂ Nanocomposites under Near-Infrared Irradiation

Establishing the NiMo₆Se₈ Chevrel Phase as a Promising Material Using DFT

Investigation of Tungsten‐Based Seleno‐Chevrel Compounds with Different Compositions for Efficient Water Splitting

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Enhanced Photocatalytic Hydrogen Evolution and Antibacterial Activities of Ternary Chevrel Phases

Abstract: Chevrel phases consisted of abundant materials, are of great interest in a variety of energy conversion and storage technologies because of unique structural and electronic features. Herein, crystalline

Cited by 5 publications

References 90 publications

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS2 and BP/MoS2 Nanocomposites under Near-Infrared Irradiation

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS2 and BP/MoS2 Nanocomposites under Near-Infrared Irradiation

Establishing the NiMo6Se8 Chevrel Phase as a Promising Material Using DFT

Investigation of Tungsten‐Based Seleno‐Chevrel Compounds with Different Compositions for Efficient Water Splitting

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Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS₂ and BP/MoS₂ Nanocomposites under Near-Infrared Irradiation

Superb Photo-Antibacterial/Antibiofilm Activities of BP/WS₂ and BP/MoS₂ Nanocomposites under Near-Infrared Irradiation

Establishing the NiMo₆Se₈ Chevrel Phase as a Promising Material Using DFT