Recent progress and advances in the environmental applications of MXene related materials

Chen, Junyu; Huang, Qiang; Huang, Hongye; Mao, Liucheng; Liu, Meiying; Zhang, Xiaoyong; Wei, Yen

doi:10.1039/c9nr08542d

Cited by 224 publications

(91 citation statements)

References 176 publications

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“…There are numerous published reviews in the fields of MXenes for energy, catalysis, and environmental remediation [ 12 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. However, the reviews on the mechanical properties of self-standing MXenes are not yet reported [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

The Recent Advances in the Mechanical Properties of Self-Standing Two-Dimensional MXene-Based Nanostructures: Deep Insights into the Supercapacitor

et al. 2020

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MXenes have emerged as promising materials for various mechanical applications due to their outstanding physicochemical merits, multilayered structures, excellent strength, flexibility, and electrical conductivity. Despite the substantial progress achieved in the rational design of MXenes nanostructures, the tutorial reviews on the mechanical properties of self-standing MXenes were not yet reported to our knowledge. Thus, it is essential to provide timely updates of the mechanical properties of MXenes, due to the explosion of publications in this filed. In pursuit of this aim, this review is dedicated to highlighting the recent advances in the rational design of self-standing MXene with unique mechanical properties for various applications. This includes elastic properties, ideal strengths, bending rigidity, adhesion, and sliding resistance theoretically as well as experimentally supported with various representative paradigms. Meanwhile, the mechanical properties of self-standing MXenes were compared with hybrid MXenes and various 2D materials. Then, the utilization of MXenes as supercapacitors for energy storage is also discussed. This review can provide a roadmap for the scientists to tailor the mechanical properties of MXene-based materials for the new generations of energy and sensor devices.

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Section: Introductionmentioning

confidence: 99%

The Recent Advances in the Mechanical Properties of Self-Standing Two-Dimensional MXene-Based Nanostructures: Deep Insights into the Supercapacitor

et al. 2020

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“…The 2D structure and high electronic conductivity of MXenes make people naturally recall the star 2D material, graphene. [64] Thus far, the progress on applying MXenes for photocatalysis is mainly concentrated on using MXenes as electron acceptors to promote the separation of charge carriers in semiconductors, [16,24,25,[45][46][47][48] as graphene has done over the past decade. [65][66][67] As such, we spontaneously encounter the questions: what are the unique properties of MXenes and what can MXenes bring to us for photocatalytic applications?…”

Section: What Can Mxenes Bring For Photocatalysis?mentioning

confidence: 99%

“…Thus far, various semiconductors/ MXenes composites have been constructed and utilized for a broad spectrum of photocatalytic applications, such as environmental remediation, water splitting for hydrogen evolution, CO 2 reduction, and nitrogen photofixation ( Figure 2). [16,[24][25][45][46][47][48] There have been some reviews recapping recent advances in using MXenes-based composites for photocatalytic applications. [16,20,24,25,[45][46][47][48][49] From these previous reviews, we can acknowledge that MXenes have been quickly becoming a research hotspot for constructing composites for photocatalysis.…”

mentioning

confidence: 99%

“…[16,[24][25][45][46][47][48] There have been some reviews recapping recent advances in using MXenes-based composites for photocatalytic applications. [16,20,24,25,[45][46][47][48][49] From these previous reviews, we can acknowledge that MXenes have been quickly becoming a research hotspot for constructing composites for photocatalysis. In addition to the valuable information provided in these reviews, it is highly desirable that some key issues of MXenes-based photocatalysis should be reasonably justified, especially the competitiveness and challenges of MXenes as a functional component for photocatalysis, which is the essential goal of the present review.…”

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confidence: 99%

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Positioning MXenes in the Photocatalysis Landscape: Competitiveness, Challenges, and Future Perspectives

Xie

Zhang

2020

Adv Funct Materials

203

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MXenes are becoming a worthy contender for boosting the efficacy of semiconductor photocatalysts because of their rich surface and electronic properties, which is exemplified to be a dynamic yet open‐ended exploration of the materials space. Herein, the promise that MXenes hold for photocatalytic applications is elucidated by presenting the various roles of MXenes in the preparation of composite photocatalysts and enhancing their activity and stability. A specific focus is put on the key issues that should be taken into account when utilizing the specific function of MXenes and the strategies to deliver the great potential of MXenes into better play. The discussion is based on different aspects closely related to the flexible surface and electronic features of MXenes, including their morphology control, stability issue, and electronic structure mutability with the purpose to present an objective and comprehensive scenario of MXenes for photocatalysis. Finally, some noteworthy research directions for the future development of MXenes‐based photocatalytic systems are outlined and prospected. This review is expected to provide a useful scaffold for the rational design and synthesis of efficient and stable MXenes‐based photocatalysts by objectively understanding and taming the functional vitality of MXenes.

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“…Recently, two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides (referred to as MXenes) have emerged (8,9) as promising nanoscale electronic materials with good electrochemical stability. They have also been reported as promising templates for the synthesis of functional micro/nano-structured materials such as transition metal oxides (TMOs), alkali-metal titanates, and their hybrids (10,11).…”

Section: Introductionmentioning

confidence: 99%

Flexible and High-Performance Electrochromic Devices Enabled by Self-Assembled 2D TiO2/MXene Heterostructures

et al. 2020

Preprint

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Transition metal oxides (TMO) are promising electrochromic (EC) materials for applications such as smart windows and displays, yet challenge still exists to achieve good flexibility, high coloration efficiency and fast response simultaneously. MXenes (e.g. Ti3C2Tx) and their derived TMOs (e.g. 2D TiO2) are good candidates for high-performance and flexible EC devices because of their 2D nature and the possibility of assembling them into loosely networked structures. Here we demonstrate flexible, fast, and high-coloration-efficiency EC devices based on self-assembled 2D TiO2/Ti3C2Tx heterostructures, with the Ti3C2Tx layer as the transparent electrode, and the 2D TiO2 layer as the EC layer. Benefiting from the well-balanced porosity and connectivity of these assembled nanometer-thick heterostructures, they present fast and efficient ion and electron transport, as well as superior mechanical and electrochemical stability. We further demonstrate large-area flexible devices which could potentially be integrated onto curved and flexible surfaces for future ubiquitous electronics.

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Recent progress and advances in the environmental applications of MXene related materials

Abstract: MXenes are a new type of two-dimensional (2D) transition metal carbide or carbonitride material with a 2D structure similar to graphene.

Cited by 224 publications

References 176 publications

The Recent Advances in the Mechanical Properties of Self-Standing Two-Dimensional MXene-Based Nanostructures: Deep Insights into the Supercapacitor

The Recent Advances in the Mechanical Properties of Self-Standing Two-Dimensional MXene-Based Nanostructures: Deep Insights into the Supercapacitor

Positioning MXenes in the Photocatalysis Landscape: Competitiveness, Challenges, and Future Perspectives

Flexible and High-Performance Electrochromic Devices Enabled by Self-Assembled 2D TiO2/MXene Heterostructures

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