Energy conversion and optical applications of MXene quantum dots

Safaei, Mohadeseh; Shishehbore, M. Reza

doi:10.1007/s10853-021-06428-6

Cited by 14 publications

(12 citation statements)

References 167 publications

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“…Photothermal effect refers to the phenomenon of increasing temperature caused by the interaction between photon energy and lattice vibration after the material is irradiated by light, among which the photothermal effect caused by near-infrared radiation is the most obvious ( Huang et al, 2020b ; Meng et al, 2022 ). It is found that MXene has high photothermal conversion efficiency, and can achieve obvious temperature increase under the condition of low power NIR irradiation ( Xu et al, 2020 ; Safaei and Shishehbore, 2021 ). Jin et al found that for the constructed nanofiber hydrogel loaded with MXene, 0.5 W NIR irradiated for 5min could increase the material temperature from 23°C to 41°C, and the material temperature further rose to 61°C after 5 min irradiated with 1 W NIR ( Jin et al, 2021 ).…”

Section: Application Of Mxene and Its Modified Materials In Skin Woun...mentioning

confidence: 99%

Applications of MXene and its modified materials in skin wound repair

Zhang

Kong

et al. 2023

Front. Bioeng. Biotechnol.

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The rapid healing and repair of skin wounds has been receiving much clinical attention. Covering the wound with wound dressing to promote wound healing is currently the main treatment for skin wound repair. However, the performance of wound dressing prepared by a single material is limited and cannot meet the requirements of complex conditions for wound healing. MXene is a new two-dimensional material with electrical conductivity, antibacterial and photothermal properties and other physical and biological properties, which has a wide range of applications in the field of biomedicine. Based on the pathophysiological process of wound healing and the properties of ideal wound dressing, this review will introduce the preparation and modification methods of MXene, systematically summarize and review the application status and mechanism of MXene in skin wound healing, and provide guidance for subsequent researchers to further apply MXene in the design of skin wound dressing.

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Section: Application Of Mxene and Its Modified Materials In Skin Woun...mentioning

confidence: 99%

Applications of MXene and its modified materials in skin wound repair

Zhang

Kong

et al. 2023

Front. Bioeng. Biotechnol.

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“…The appreciable performance of the MXene QDs benefitted from their high electrical conductivity, extremely small work function, conductor–insulator shift, reversibility, hydrophilicity, tunable band gap, and surface functionalities in comparison to that of their 2D equivalents. [ 20 ] In addition to the electronic properties, the MXene QDs exhibit high dispersibility in aqueous media, great photon absorption, superior electrocatalytic capacity, fast redox kinetics, and recyclability, broadening their utilizations in various applications such as electrocatalysis, energy management, batteries, supercapacitors, water splitting, and LEDs. [ 1 ]…”

Section: Applications Of Mxene Qdsmentioning

confidence: 99%

New Horizons in the Synthesis, Properties, and Applications of MXene Quantum Dots

Sariga

Babu

Kumar

et al. 2023

Adv Materials Inter

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soum led the discovery of a new class of materials called MXene which was synthesized by selective etching of MAX phases. Here, a few layered arrays of (early) transition metal atoms are connected by a carbon/ nitrogen atom layer, linking the metallic layer known as transition metal carbides/nitrides or carbonitrides. [9,10] The general formula of MXene is M (n+1) X (n) T (x) or MAX; where M represents transition metal ions (such as Ti, Sc, Nb, and Mo), X represents Carbon or Nitrogen element, and T is any surface functional group such as Oxygen, Fluorine, or Hydroxyl group. Such compounds show an exceptional fusion of electronic conductivity and optical properties arising from the free electrons of the transition metal carbides or nitrides along with hydrophilicity from the surface functional groups. [11][12][13][14][15] The steady 2D forms of MXenes display distinguishing properties unlike the intralayer covalent bonds and weak van der Waals interactions seen in the bulk material. They possess a typical planar morphology with alterable surface characteristics, excellent conductivity, and hydrophilicity as well as appreciable thermal, mechanical, optical, and chemical properties. MXenes also have profound applications in energy-related devices, electrochemical and fluorescent detection, water purification, catalysis, and environmental research. [13,16,17] Interestingly, the etching of the MXene layers results in the formation of 0D semiconductor MXene quantum dots (MXene QDs). The QDs produced from MXenes showcase conductivity, hydrophilicity, and biocompatibility similar to that of MXenes along with distinctive optical and electrical properties. [18,19] They possess a lateral dimension of <10 nm, with abundant active sites and a greater surface-tovolume ratio compared to the parental MXene. These monodisperse nanocrystals exhibit semiconductor-like properties, size-dependent characteristics, and variable energy levels. [20] The edge defects and quantum confinement in the QDs account for their fluorescence emission. [21,22] The excellent light-harvesting properties also come advantageous for MXene QDs to be used in light-to-heat conversion applications. Ease of functionalization, high water dispersibility, good colloidal and photostability, as well as superior physicochemical and photoelectric activities contribute to promising applications of the MXene QDs in the fields of optics, photothermal conversion, photochemotherapy, fluorescence detection, and bioimaging. In 2017, the first prepared photoluminescent Ti 3 C 2 QDsThe progress of MXenes, a 2D layered structural material since its discovery in 2011 recently arouses a great deal of attention due to their plethora of applications in a diverse range of fields. Their excellent properties in terms of surface chemistry, optical activity, electrical conductivity, presence of abundant active catalytic sites, tunable band gap structure, ease of surface functionalization, and good biocompatibility make them an ideal candidate. The authors aim to guide the readers thr...

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“…Indeed, the surface functional groups affect the band structure, [136,137] electrical conductivity, and work function. High transparency and low resistivity, [62] continuous epitaxial film; chemical stability; high charge storage, [63] controllable property [64] Biocompatibility, [65] photothermal response, [66] good mechanical stability, [67,68] high conductivity [10] Flexibility, [69] excellent ionic conductivity, [70] high electrochemical performance [71] PL properties, [72] low cytotoxicity, [73,74] high electronic conductivity, [75] active site restriction breakthrough, [76] large surface area, edge effects [77,78] Concerns and challenges The surface groups suppressing TCO performances, [62] hard to obtain single-layer Ti 3 C 2 films [62] Weak stability in oxygen environment, [79,80] severe aggregation, [81] self-stacking [82] Brittleness, [83] susceptibility to oxidation, difficulty to industrialization, [84] ion diffusion resistance [85] Long synthesis time, hazardous preparation conditions, and severe oxidation [73,86,87] Opportunities and perspective Good metal conductivity (at 100 K), [62] growth of monolayer MXene; more MXene species by MAX epitaxy plus Al etching Accurately control the size, composition and surface chemical functionalization of MXene [65] High thermal conductivity, [88] Wearable devices [89] Device compatibility, [90] long sustainability,…”

Section: Electrical and Electronic Propertiesmentioning

confidence: 99%

Toward Smart Sensing by MXene

Huang

Peng

et al. 2022

Small

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MXene is typically exfoliated by selective etching the A layer of MAX phase. [1] One example of MXene, Ti 3 C 2 F x , satisfies the stoichiometric ratio of n + 1/n, in which M, X, and T stand for transition metals, carbon or nitrogen, terminal groups at surfaces, respectively. The MXene has exhibited extraordinary electrical, [2][3][4] optical, [5] mechanical, [6][7][8] and electrochemical properties [9] since its first discovery, [10] which has become an emerging material for sensing, [11,12] communication, [13,14] energy, [15,16] environmental, [17] and healthcare applications. [18][19][20] There are many reviews existing for electrochemical energy storage, including supercapacitors, lithium ion batteries, [21][22][23] sodium ion batteries, zinc ion batteries, [24][25][26] lithium-sulfur batteries, and energy conversions, [27][28][29] includingThe Internet of Things era has promoted enormous research on sensors, communications, data fusion, and actuators. Among them, sensors are a prerequisite for acquiring the environmental information for delivering to an artificial data center to make decisions. The MXene-based sensors have aroused tremendous interest because of their extraordinary performances. In this review, the electrical, electronic, and optical properties of MXenes are first introduced. Next, the MXene-based sensors are discussed according to the sensing mechanisms such as electronic, electrochemical, and optical methods. Initially, biosensors are introduced based on chemiresistors and field-effect transistors. Besides, the wearable pressure sensor is demonstrated with piezoresistive devices. Third, the electrochemical methods include amperometry and electrochemiluminescence as examples. In addition, the optical approaches refer to surface plasmonic resonance and fluorescence resonance energy transfer. Moreover, the prospects are delivered of multimodal data fusion toward complicated human-like senses. Eventually, future opportunities for MXene research are conveyed in the new material discovery, structure design, and proof-of-concept devices.

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Energy conversion and optical applications of MXene quantum dots

Cited by 14 publications

References 167 publications

Applications of MXene and its modified materials in skin wound repair

Applications of MXene and its modified materials in skin wound repair

New Horizons in the Synthesis, Properties, and Applications of MXene Quantum Dots

Toward Smart Sensing by MXene

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