MXene/Polymer Membranes: Synthesis, Properties, and Emerging Applications

Gao, Lingfeng; Li, Chao; Huang, Weichun; Mei, Shan; Han, Lin; Ou, Qi; Zhang, Ye; Guo, Jia; Zhang, Feng; Xu, Shixiang

doi:10.1021/acs.chemmater.9b04408

Cited by 527 publications

(287 citation statements)

References 329 publications

Supporting

Mentioning

275

Contrasting

Order By: Relevance

“…In addition, the absorption band corresponding to N–H at 3300 cm −1 , which is not observed in the spectrum of the pristine MXene, is prominent in the spectrum of OAm@Ti 3 C 2 T x , showing intermolecular interactions between OAm and active terminations on the surface of MXene by hydrogen bonding and/or van der Waals forces. [ 39,40 ]…”

Section: Resultsmentioning

confidence: 99%

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti₃C₂ MXene via Soft Lithography

Song

Yun

Kim

et al. 2020

Adv Materials Inter

View full text Add to dashboard Cite

Thin films of well‐stacked two‐dimensional MXene flakes have been used in various applications, especially in sensors and microscale energy storage devices, such as micro‐supercapacitors. Miniaturization and integration of devices, as well as maximization of device performance require nanoscale patterning of MXene, beyond what can be achieved using inkjet or screen printing. However, nanoscale patterning technology for MXene is yet to be developed. In the present work, a simple fabrication method is demonstrated for manufacturing Ti3C2Tx MXene films with vertically aligned nanopatterns via soft lithography. This process involves polydimethylsiloxane (PDMS) stamping with line‐patterned PDMS molds. The feature size of the vertical line patterning of MXene is controlled with the nanometers accuracy by swelling of the PDMS mold by toluene, which also guides vertical alignment of MXene flakes. As a result, vertically aligned MXene nanopatterns are fabricated with a width of ridges less than 200 nm and 2‐µm regular spacing between the ridges. The oleylamine‐functionalized MXene flakes are also developed for better dispersion in toluene, providing a general protocol to fabricate MXene dispersions in nonpolar solvents.

show abstract

Section: Resultsmentioning

confidence: 99%

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti₃C₂ MXene via Soft Lithography

Song

Yun

Kim

et al. 2020

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…Specifically, photogenerated electrons undergo reverse transfer under the drive of an electric field, which greatly accelerates the separation of electron–hole pairs. [ 31 ]…”

Section: Resultsmentioning

confidence: 99%

Surface Engineering and Built‐In Electric Field within Copper Sulfide/Graphitic Carbon Nitride Photocatalyst for Extremely Enhanced Charge Separation and Broad‐Spectrum Pharmaceuticals and Personal Care Products Degradation

Zhang

Sun

et al. 2020

Solar RRL

View full text Add to dashboard Cite

Due to continuous environmental deterioration, ecological issues have become one of the most serious problems, [1] and the increasing presence of pharmaceuticals and personal care products (PPCPs) in water is one of the most serious issues. [2] For instance, diclofenac, a representative PPCP, is a common nonsteroidal anti-inflammatory that is regularly observed in various surface water sources and treated wastewater. [3] Traditional wastewater treatment methods (e.g., conventional activated sludge processes) have proven ineffective at removing PPCPs and they also require high energy consumption or the use of toxic chemicals; [4] therefore, there is a need to develop new environmental-friendly and energysaving technologies to remove PPCPs. Photocatalysis is a promising approach that uses inexhaustible solar energy to degrade pollutants; [5] however, due to the high carrier recombination rate and low light-energy utilization, the light-energy conversion efficiency of such catalysts is not ideal, which severely limits their practical applications. [6] The key to solving this bottleneck is to develop new photocatalysts with high photocatalytic activities and broad light-absorption ranges. [7] As an excellent metal-free polymeric photocatalyst, graphitic carbon nitride (g-C 3 N 4) has attracted intense interest due to its superior oxidative ability, simple preparation process, visible-light response, favorable chemical stability, and appropriate band edges. [8] g-C 3 N 4 has been applied to environmental remediation, [9] photocatalytic H 2 evolution, [10] and photocatalytic CO 2 reduction. [11] Although g-C 3 N 4 has excellent properties, it suffers from a tendency to form irregular microstructures, low specific surface area, rapid recombination of photogenerated electron-hole pairs, and poor light utilization, which have seriously hindered its broader applications. [11a,12] To improve the photocatalytic performance, numerous methods have been used, including morphological control, [10b] metal deposition, [13] metal/nonmetal ion doping, [14] and coupling with other semiconductors. [15] For instance, Zhang et al. used boron nitride quantum dots and bisphenol S doping g-C 3 N 4 to form a composite material to suppress the recombination of photogenerated carriers, thus improving the photodegradation performance. [16] These attempts show that the key to improving the photocatalytic performance is to achieve effective spatial

show abstract

“…A variety of polymers can be incorporated with MXenes by the strategies of in situ polymerization or ex situ blending due to the abundant active terminations on the surface of MXenes. [5,27,52,69,[93][94][95][96] The ex situ blending method is usually employed to prepare MXene/polymer composites with the advantages of precise control of their compositions and well-defined polymer structures. Many interactions between MXenes and polymers, such as electrostatic interactions [28,62] and hydrogen bonding, [27,97] can efficiently enhance the interaction of MXenes and polymers.…”

Section: Mxene Modified By Macromoleculesmentioning

confidence: 99%

Recent Advances in Functional 2D MXene‐Based Nanostructures for Next‐Generation Devices

Huang

Tang

et al. 2020

Adv Funct Materials

Self Cite

266

138

View full text Add to dashboard Cite

Similar to graphene and black phosphorus (BP), 2D transition metal carbides and nitrides (MXenes) are of great interest in a variety of fields, such as energy storage and conversion, sensors, electromagnetic interference (EMI) shielding, and photothermal therapy due to their excellent conductivity and hydrophilicity, large specific capacitance, high photothermal effect, and superior electrochemical performance. To further broaden applicable ranges beyond their existing boundaries and fully exploit these potentials, functional 2D MXene nanostructures in recent years have been rationally designed and developed by various approaches, such as doping strategies, surface functionalization, and hybridization, for next-generation devices with the merits of low power consumption, intelligence, and high-integration chips. This review provides an overview of the synthetic routes and fundamental properties of functional 2D MXene nanostructures, including surfacemodified 2D MXenes and mixed-dimensional MXene-based heterostructures, highlights the state-of-the-art progress in the applications of functional 2D MXene nanostructures with regard to energy storage and conversion, catalysis, sensors, photodetectors, EMI shielding, degradation, and biomedical applications, and presents the challenges and perspectives in these burgeoning fields. It is hoped that this review will inspire more efforts toward fundamental research on new functional 2D MXene-based devices to satisfy the growing requirements for next-generation systems.

show abstract

MXene/Polymer Membranes: Synthesis, Properties, and Emerging Applications

Cited by 527 publications

References 329 publications

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti₃C₂ MXene via Soft Lithography

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti₃C₂ MXene via Soft Lithography

Surface Engineering and Built‐In Electric Field within Copper Sulfide/Graphitic Carbon Nitride Photocatalyst for Extremely Enhanced Charge Separation and Broad‐Spectrum Pharmaceuticals and Personal Care Products Degradation

Recent Advances in Functional 2D MXene‐Based Nanostructures for Next‐Generation Devices

Contact Info

Product

Resources

About

MXene/Polymer Membranes: Synthesis, Properties, and Emerging Applications

Cited by 527 publications

References 329 publications

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti3C2 MXene via Soft Lithography

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti3C2 MXene via Soft Lithography

Surface Engineering and Built‐In Electric Field within Copper Sulfide/Graphitic Carbon Nitride Photocatalyst for Extremely Enhanced Charge Separation and Broad‐Spectrum Pharmaceuticals and Personal Care Products Degradation

Recent Advances in Functional 2D MXene‐Based Nanostructures for Next‐Generation Devices

Contact Info

Product

Resources

About

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti₃C₂ MXene via Soft Lithography

Vertically Aligned Nanopatterns of Amine‐Functionalized Ti₃C₂ MXene via Soft Lithography