Photo-enhanced piezocatalytic hydrogen evolution using in situ silver piezodeposited scheelite-type BaMoO4 and BaWO4

Kuru, Talha; Sarilmaz, Adem; Aslan, Emre; Ozel, Faruk; Hatay Patir, Imren

doi:10.1039/d3ta04626e

Cited by 9 publications

(3 citation statements)

References 63 publications

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“…808 nm NIR (1 W·cm –2 ) and LED light (5 W·cm –2 , λ ≥ 420 nm) were used as light sources, and the irradiation time was 5 min. The spectral properties of LED light were given in our previous study . The samples were incubated at 37 °C by medium shaking for 4 h, and the optical density of the bacterial growth.…”

Section: Methodsmentioning

confidence: 99%

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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: Methodsmentioning

confidence: 99%

“…The spectral properties of LED light were given in our previous study. 69 The samples were incubated at 37 °C by medium shaking for 4 h, and the optical density of the bacterial growth.…”

Section: ■ Experimental Sectionmentioning

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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“…Moreover, the simplicity and scalability of mechanical catalysis make it an attractive option for industrial applications, promising efficient and cost-effective solutions for hydrogen production and beyond. Piezocatalytic H 2 production, as a subtype of mechanical catalysis, offers an intriguing avenue to substantially reduce catalysis costs by using mechanical energy, making it particularly attractive as it operates independently of light [14][15][16][17]. Piezoelectric effects are indeed restricted to crystals lacking a center of symmetry, limiting the range of semiconductor catalytic materials that can utilize mechanical energy for catalysis.…”

Section: Introductionmentioning

confidence: 99%

Harvesting Vibration Energy for Efficient Cocatalyst-Free Sonocatalytic H2 Production over Magnetically Separable Ultra-Low-Cost Fe3O4

Zhang,

Sun,

et al. 2024

Materials

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The cavitation effect is an important geochemical phenomenon, which generally exists under strong hydrodynamic conditions. Therefore, developing an economical and effective sonocatalyst becomes a vital method in capitalizing on the cavitation effect for energy generation. In this study, we first report a novel Fe3O4 sonocatalyst that can be easily separated using a magnetic field and does not require any additional cocatalysts for H2 production from H2O. When subjected to ultrasonic vibration, this catalyst achieves an impressive H2 production rate of up to 175 μmol/h/USD (where USD stands for dollars), surpassing most previously reported mechanical catalytic materials. Furthermore, the ease and efficiency of separating this catalyst using an external magnetic field, coupled with its effortless recovery, highlight its significant potential for practical applications. By addressing the key limitations of conventional sonocatalysts, our study not only demonstrates the feasibility of using Fe3O4 as a highly efficient sonocatalyst but also showcases the exciting possibility of using a new class of magnetically separable sonocatalysts to productively transform mechanical energy into chemical energy.

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Enhanced Piezocatalytic Water Splitting by Platinum‐Decorated Barium Titanate

Subramaniam,

Billing,

Nguyen

et al. 2024

Advanced Sustainable Systems

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Piezocatalysis has emerged as a promising field of research that uses mechanical energy to drive a chemical change. There is growing evidence that piezocatalysts can perform challenging chemical conversions from organic transformations to water splitting. A key challenge to piezocatlaysis is mitigating the inherent high relative permittivity of a ferroelectric material. This high permittivity restricts the transfer of carriers required for a chemical reaction to occur and reduces the reaction rate. Here the concept of producing a co‐catalyst system is taken to enhance carrier mobility increasing the observed reaction rate. The study highlights the importance of determining the sonochemical and piezocatalytic contributions to catalysis. The combination of a Pt metal co‐catalyst with BaTiO3 through a simple solid‐state method led to a four fold increase in the rate of H2 production compared to BaTiO3 and sonochemical reactions in the absence of a catalyst. BaTiO3/Pt is found to exhibit stable piezocatalytic performance over 12 h. Where there is a deviation from steady‐state water splitting, it is shown that this is due to mechanical removal of Pt rather than a phase change in the catalyst system. This work confirms the additive benefits of hybrid materials for improving piezocatalytic processes.

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Photo-enhanced piezocatalytic hydrogen evolution using in situ silver piezodeposited scheelite-type BaMoO₄ and BaWO₄

Abstract: BaWO4 and BaMoO4 structures were investigated for photo/piezocatalytic hydrogen production by in situ Ag piezodeposition.

Cited by 9 publications

References 63 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

Harvesting Vibration Energy for Efficient Cocatalyst-Free Sonocatalytic H2 Production over Magnetically Separable Ultra-Low-Cost Fe3O4

Enhanced Piezocatalytic Water Splitting by Platinum‐Decorated Barium Titanate

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Photo-enhanced piezocatalytic hydrogen evolution using in situ silver piezodeposited scheelite-type BaMoO4 and BaWO4

Abstract: BaWO4 and BaMoO4 structures were investigated for photo/piezocatalytic hydrogen production by in situ Ag piezodeposition.

Cited by 9 publications

References 63 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

Harvesting Vibration Energy for Efficient Cocatalyst-Free Sonocatalytic H2 Production over Magnetically Separable Ultra-Low-Cost Fe3O4

Enhanced Piezocatalytic Water Splitting by Platinum‐Decorated Barium Titanate

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Product

Resources

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Photo-enhanced piezocatalytic hydrogen evolution using in situ silver piezodeposited scheelite-type BaMoO₄ and BaWO₄

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