Recent Advances in MXene‐based Separation Membranes

Abstract

Two‐dimensional (2D) materials with unique atomic thickness are promising candidate for high performance separation membrane. Several 2D materials such as graphene, graphene oxide (GO), metal‐organic frameworks (MOFs), covalent frameworks (COFs), transition metal dichalcogenides (TMDCs), etc have been studied as a separation membrane due to their outstanding properties such as high mechanical strength, large surface area, good chemical and thermal stability, ease of functionalization, and hydrophilic surface. Recently, transition metal carbide also known as MXene, a new member of layered membrane family has attended significant interest in water purification, desalination, gas separation, and pervaporation. Herein, the most recent advances in 2D MXene‐based membranes from both experimental and computational aspects are reviewed. Emphasis is placed on materials' structures, properties, fabrication methods, and potential applications in membrane technology. Finally, this review closes with several recommendation and new directions in this research area.

Prospects and Challenges of MXenes as Emerging Sensing Materials for Flexible and Wearable Breath‐Based Biomarker Diagnosis

“…[45] Because of their versatile structures and or surface chemistry, MXenes have emerged as impressive candidates for multifunctional applications. There are a number of published reviews of MXenes in the field of energy storages (batteries and electrochemical supercapacitors), [46][47][48][49] electromagnetic shielding, [41,50] optoelectronics and photonics, [51,52] wearable electronics, [45,53] wireless communication, [54] advanced membranes for molecular separation, [55][56][57] environmental remediation, [58] biomedics, [59] catalysis, [60][61][62][63] and sensing. [64,65] However, the promising application of MXenes as a future sensing material for point-of-care and personalized health care systems is not yet reported.…”

Pebax and CMC@MXene-Based Mixed Matrix Membrane with High Mechanical Strength for the Highly Efficient Capture of CO2

“…MXene (Ti 3 C 2 T x ) nanosheets were prepared according to previous work. 35 First, 1.6 g of LiF was dissolved in a 250 mL Teflon beaker containing 20 mL of (6 M) HCl solution. Next, 1 g of Ti 3 AlC 2 powder was slowly added to the above solution under magnetic stirring, and the product was washed with deionized water at constant temperature (35 °C) and centrifuged several times at 3500 rpm until pH > 7 to obtain a sediment.…”

2D Nano-Mica Sheets Assembled Membranes for High-Efficiency Oil/Water Separation

“…Hence, developing alternative materials with high performance and low cost is critically important [ 20 ]. Among various materials, two-dimensional (2D) material has sparked increasing attention as alternative material due to its excellent chemical stability, high mechanical strength, and a large specific surface area [ 27 , 28 ]. Recently, natural ground mica has been successfully stripped into single-layer or few-layer nano-sheets [ 29 ].…”