Ultrahigh stable laminar graphene membranes for effective ionic and molecular nanofiltration with a machine learning-assisted study

Paechotrattanakul, Poonsawat; Jitapunkul, Kulpavee; Iamprasertkun, Pawin; Srinoi, Pannaree; Sirisaksoontorn, Weekit; Hirunpinyopas, Wisit

doi:10.1039/d2nr06969e

Cited by 3 publications

(9 citation statements)

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“…The increase in energy consumption, growth, and rapid industrialization and a shortage of sanitary water have become one of the 17 sustainable development goals (SDGs). To achieve these goals, membrane-based filtration technologies have been demonstrated to be favored over other purification processes (i.e., distillation and evaporation) due to energy efficiency and facile technology. ,, Polymer-based membranes have been widely used for purification, but they still have drawbacks such as lack of high temperature resistances, low stability in harsh acid/base conditions and organic solvents, and low electronic conductivity for electrodialysis technologies. Two dimensional (2D) materials-based membranes have been demonstrated as novel membranes for water purification.…”

Section: Electrochemical Applications Of the As-exfoliated Materialsmentioning

confidence: 99%

“…Unlike graphene, which provides a fixed band gap, TMDs like MoS 2 , WS 2 , and WTe 2 are natural semiconductors with a tunable bandgap. , They are abundant in nature and can be transformed into ultrasmall, low-power transistors that offer greater efficiency compared to current silicon-based transistors, which struggle to cope with the rapid miniaturization of devices. , The electrochemical properties of TMDs vary with their dimension, making monolayer or few-layered TMDs desirable for various electrochemical applications. These include but are not limited to energy storage, , electrocatalysis, electrochemical sensors, , and the development of ion-sieving membranes and electrochemical adsorption systems . For instance, specific monolayer TMDs with semiconducting properties also exhibit visible-region photoluminescence .…”

Section: Introductionmentioning

confidence: 99%

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Liquid Phase Exfoliation of 2D Materials and Its Electrochemical Applications in the Data-Driven Future

Chavalekvirat,

Hirunpinyopas,

Deshsorn

et al. 2024

Precision Chemistry

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The electrochemical properties of 2D materials, particularly transition metal dichalcogenides (TMDs), hinge on their structural and chemical characteristics. To be practically viable, achieving large-scale, high-yield production is crucial, ensuring both quality and electrochemical suitability for applications in energy storage, electrocatalysis, and potentialbased ionic sieving membranes. A prerequisite for success is a deep understanding of the synthesis process, forming a critical link between materials synthesis and electrochemical performance. This review extensively examines the liquid-phase exfoliation technique, providing insights into potential advancements and strategies to optimize the TMDs nanosheet yield while preserving their electrochemical attributes. The primary goal is to compile techniques for enhancing TMDs nanosheet yield through direct liquid-phase exfoliation, considering parameters like solvents, surfactants, centrifugation, and sonication dynamics. Beyond addressing the exfoliation yield, the review emphasizes the potential impact of these parameters on the structural and chemical properties of TMD nanosheets, highlighting their pivotal role in electrochemical applications. Acknowledging evolving research methodologies, the review explores integrating machine learning and data science as tools for understanding relationships and key characteristics. Envisioned to advance 2D material research, including the optimization of graphene, MXenes, and TMDs synthesis for electrochemical applications, this compilation charts a course toward data-driven techniques. By bridging experimental and machine learning approaches, it promises to reshape the landscape of knowledge in electrochemistry, offering a transformative resource for the academic community.

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Section: Electrochemical Applications Of the As-exfoliated Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Liquid Phase Exfoliation of 2D Materials and Its Electrochemical Applications in the Data-Driven Future

Chavalekvirat,

Hirunpinyopas,

Deshsorn

et al. 2024

Precision Chemistry

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“…This is in part due to the ability to selectively tune the interlayer spacing among graphene layers. Such interlayer tuning alters the dynamics of water molecules and salt ions passing through the nanochannels. − …”

Section: Introductionmentioning

confidence: 99%

Graphene: From Solid Support for Nucleobase Assisted Self-Assemblies to Functional Material for DNA Sequencing

H.,

Mallajosyula

2024

J. Phys. Chem. C

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The discovery of graphene ushered in a new era in multiple domains of scientific research. The relative ease of largescale synthesis and the unique physiochemical properties of graphene led many research groups to investigate the applicability of graphene as a functional material for a broad spectrum of applications. Here we review the applications of graphene in two broad areas: as an atomistically thin solid support assisting the formation of self-assembled monolayers and as a functional material for DNA sequencing.

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“…To the best of our knowledge, there are no prior reports on the mechanism behind nanosheet-containing 2D supports with different dimensions to anchor NPs for enhanced electrocatalytic activity. In addition, the catalytic performance could also be studied using machine learning, which would be beneficial for the development of electrocatalyst design. , …”

Section: Introductionmentioning

confidence: 99%

“…In addition, the catalytic performance could also be studied using machine learning, which would be beneficial for the development of electrocatalyst design. 19,20 In this work, graphene dispersion was prepared by facile liquid-phase exfoliation (unlike the GO family), and the size selection was obtained under different centrifugation speeds. A size-dependent graphene nanosheet (GP) was used to support gold nanoparticles (AuNPs) as catalysts for HER.…”

Section: Introductionmentioning

confidence: 99%

Size-Dependent Graphene Support for Decorating Gold Nanoparticles as a Catalyst for Hydrogen Evolution Reaction with Machine Learning-Assisted Prediction

Saeloo,

Jitapunkul,

Iamprasertkun

et al. 2023

ACS Appl. Mater. Interfaces

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Size-dependent two-dimensional (2D) materials (e.g., graphene) have been recently used to improve their performance in various applications such as membrane filtration, energy storage, and electrocatalysts. It has also been demonstrated that 2D nanosheets can be one of the promising support materials for decorating nanoparticles (NPs). However, the optimum nanosheet size (lateral length and thickness) for supporting NPs has not yet been explored to enhance their catalytic performance. Herein, we elucidate the mechanism behind size-dependent graphene (GP) as a support due to which gold nanoparticles (AuNPs) are used as an active catalyst for the hydrogen evolution reaction (HER). Surprisingly, the decoration of AuNPs increased with the increasing nanosheet size, counter to what is widely reported in the literature (high surface area for smaller nanosheet size). We found that a large graphene nanosheet (lGP; ∼800 nm) used as the AuNP support (lGP/AuNPs) exhibited superior performance for the HER with long-term stability. The lGP/AuNPs with a suitable content of AuNPs provides a low overpotential and a small Tafel slope, being lower than that of other reported carbon-based HER electrocatalysts. This results from highly exposed active sites of well-dispersed AuNPs on lGP giving high conductivity. The laminar structure of the stacked graphene nanosheets and the high wettability of the lGP/AuNPs electrode surface also play crucial roles in enhancing electrolytes for penetration in the electrode, suggesting a highly electrochemical surface area. Moreover, machine learning (Random Forest) was also used to reveal the essential features of the advanced catalytic material design for catalyst-based applications.

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Ultrahigh stable laminar graphene membranes for effective ionic and molecular nanofiltration with a machine learning-assisted study

Abstract: This work succeeded in the preparation of graphene-based membranes with ultrahigh stability in water, high salt concentration and seawater, and also studied the machine leaning-based ion permeability.

Cited by 3 publications

References 66 publications

Liquid Phase Exfoliation of 2D Materials and Its Electrochemical Applications in the Data-Driven Future

Liquid Phase Exfoliation of 2D Materials and Its Electrochemical Applications in the Data-Driven Future

Graphene: From Solid Support for Nucleobase Assisted Self-Assemblies to Functional Material for DNA Sequencing

Size-Dependent Graphene Support for Decorating Gold Nanoparticles as a Catalyst for Hydrogen Evolution Reaction with Machine Learning-Assisted Prediction

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