Low-frequency vibration induced piezoelectric boost to photocatalytic hydrogen evolution through 2D-2D-stacked MoS2-carbon nitride

Masimukku, Srinivaas; Tsai, Dai-Ling; Lin, Yu-Wei; Chang, I-Ling; Wu, Jia-Rong

doi:10.1016/j.apsusc.2022.156147

Cited by 11 publications

(3 citation statements)

References 44 publications

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“…found that the 2D-2D stacked MoS 2 -carbon nitride heterostructures exhibited an extremely high piezo-photocatalytic H 2 production rate of 8300 μmol g −1 h −1 . [167] A detailed comparison of the piezocatalytic H 2 evolution performance is listed in Table 2.…”

Section: Water Splittingmentioning

confidence: 99%

An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

Jin

Liu

Zhang

2023

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Piezocatalysis is an emerging technique that holds great promise for the conversion of ubiquitous mechanical energy into electrochemical energy through piezoelectric effect. However, mechanical energies in natural environment (such as wind energy, water flow energy, and noise) are typically tiny, scattered, and featured with low frequency and low power. Therefore, a high response to these tiny mechanical energies is critical to achieving high piezocatalytic performance. In comparison to nanoparticles or 1D piezoelectric materials, 2D piezoelectric materials possess characteristics such as high flexibility, easy deformation, large surface area, and rich active sites, showing more promise in future for practical applications. In this review, state‐of‐the‐art research progresses on 2D piezoelectric materials and their applications in piezocatalysis are provided. First, a detailed description of 2D piezoelectric materials are offered. Then a comprehensive summary of the piezocatalysis technique is presented and examines the piezocatalysis applications of 2D piezoelectric materials in various fields, including environmental remediation, small‐molecule catalysis, and biomedicine. Finally, the main challenges and prospects of 2D piezoelectric materials and their applications in piezocatalysis are discussed. It is expected that this review can fuel the practical application of 2D piezoelectric materials in piezocatalysis.

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Section: Water Splittingmentioning

confidence: 99%

An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

Jin

Liu

Zhang

2023

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“…77 Masimukku and co-workers observes an enhancement in the H 2 evolution rate over a MoS 2 /C 3 N 4 heterostructure when low-frequency vibration is introduced together with light irradiation to generate vortex-induced shearing stress. 78 The shearing stress is functional to restrict charge recombination in the C 3 N 4 portion of the heterostructure. A low-frequency force of a hydromechanical vortex has also been utilized to produce reactive species over MoS 2 for the degradation of recalcitrant organics.…”

Section: How To Design a Potentially Efficient Piezocatalystmentioning

confidence: 99%

Piezocatalysis: a promising alternative route for CO₂ reduction

Sudrajat,

Rossetti,

Colmenares

2023

J. Mater. Chem. A

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“…The structure of the MoS 2 on CN significantly impacts the piezoelectric activity of the binary composites. The MoS 2 nanosheet acts as a piezo potential generator to induce an electric field on CN; thus, the recombination of the charge carriers is inhibited under low-frequency vortex vibration 80. Table 1 outlines the various MoS 2 /carbonaceous composites and the synthesis methods and photocatalytic parameters used to produce H 2 by photocatalytic water splitting.…”

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confidence: 99%

MoS₂-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction

Balan

Mathew

2023

ACS Omega

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Photocatalysis is a facile and sustainable approach for energy conversion and environmental remediation by generating solar fuels from water splitting. Due to their two-dimensional (2D) layered structure and excellent physicochemical properties, molybdenum disulfide (MoS 2 ) has been effectively utilized in photocatalytic H 2 evolution reaction (HER) and CO 2 reduction. The photocatalytic efficiency of MoS 2 greatly depends on the active edge sites present in their layered structure. Modifications like reducing the layer numbers, creating defective structures, and adopting different morphologies produce more unsaturated S atoms as active edge sites. Hence, MoS 2 acts as a cocatalyst in nanocomposites/heterojunctions to facilitate the photogenerated electron transfer. This review highlights the role of MoS 2 as a cocatalyst for nanocomposites in H 2 evolution reaction and CO 2 reduction. The H 2 evolution activity has been described comprehensively as binary (with metal oxide, carbonaceous materials, metal sulfides, and metal−organic frameworks) and ternary composites of MoS 2 . Photocatalytic CO 2 reduction is a more complex and challenging process that demands an efficient light-responsive semiconductor catalyst to tackle the thermodynamic and kinetic factors. Photocatalytic reduction of CO 2 using MoS 2 is an emerging topic and would be a cost-effective substitute for noble catalysts. Herein, we also exclusively envisioned the possibility of layered MoS 2 and its composites in this area. This review is expected to furnish an understanding of the diverse roles of MoS 2 in solar fuel generation, thus endorsing an interest in utilizing this unique layered structure to create nanostructures for future energy applications.

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Low-frequency vibration induced piezoelectric boost to photocatalytic hydrogen evolution through 2D-2D-stacked MoS2-carbon nitride

Cited by 11 publications

References 44 publications

An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

Piezocatalysis: a promising alternative route for CO₂ reduction

MoS₂-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction

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Low-frequency vibration induced piezoelectric boost to photocatalytic hydrogen evolution through 2D-2D-stacked MoS2-carbon nitride

Cited by 11 publications

References 44 publications

An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials

Piezocatalysis: a promising alternative route for CO2 reduction

MoS2-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction

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Product

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Piezocatalysis: a promising alternative route for CO₂ reduction

MoS₂-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction