Self-assembling 2D/2D (MXene/LDH) materials achieve ultra-high adsorption of heavy metals Ni2+ through terminal group modification

Three-dimensional MXenes heterostructures and their applications

“…Due to their excellent capacity, efficiency, low-temperature sensitivity, and facile regeneration treatment, MXenes/alginate heterostructures are potential adsorbents for heavy metal ions recovery. Feng et al [92] fabricated alk-MXenes/LDH materials by in-situ mechanical and self-assembly methods. Due to their layered framework, the oxidized functional groups and accessible active binding sites of MXene nanoflakes constituted an effective sorbent for removing heavy metals from an aqueous solution.…”

Theoretical Study on the Electronic Structure and Magnetic Properties Regulation of Janus Structure of M’MCO2 2D MXenes

“…MXenes have the general formula M n+1 X n T x , where M stands for early TM, X represents C or N, T x indicates the surface functional groups O, OH, or F, and n = 1, 2, or 3 [ 9 , 10 ]. Usually, MXenes are synthesized by selective etching A layers (A is an element from the A-group 13 or 14) in the MAX phase, using hydrofluoric acid (HF) solutions [ 11 , 12 , 13 ]. Sue to their excellent electrical [ 14 ], optical [ 15 , 16 , 17 , 18 ], and mechanical properties [ 19 ], MXenes have been widely applied in electronic devices [ 20 ], catalysis [ 21 , 22 , 23 , 24 ], magnetic storage [ 25 ], energy conversion, and storage systems [ 26 , 27 , 28 ].…”

Construction of a highly stable g-C3N4/NH2-MIL-88B(Fe)/CD@graphene oxide self-cleaning membrane for dye wastewater separation and degradation

“…9 It has been applied in the fields of CO 2 conversion, 10 organic degradation 11 and other fields. It is shown that g-C 3 N 4 is composed of sp 3 and sp 2 hybrid planar carbon materials, and tri-s-triazine units linked to nitrogen atoms via a single bond (N-(C) 3 ) can be easily eliminated to adjust the pore size of the membranes. 12,13 However, g-C 3 N 4 has some disadvantages such as a low surface area and fast electron-hole recombination rate.…”

“…1 The printing and dyeing wastewater released from textile and dyeing industries has high chroma and complex composition, which causes serious environmental pollution and becomes a difficult problem in water treatment. 2 At present, mankind has made great efforts in the purification and recycling of water resources, forming water purification technology based on adsorption, 3 biological treatment, 4 membrane separation, 5 advanced oxidation 6 and other technologies. Among them, membrane separation technology is widely used in sewage treatment due to its high separation efficiency and low energy consumption.…”