Bi-functional super-hydrophilic/underwater super-oleophobic 2D lamellar Ti3C2Tx MXene/poly (arylene ether nitrile) fibrous composite membrane for the fast purification of emulsified oil and photodegradation of hazardous organics

Agave-Angustifolia-like Cu3Mo2O9 Nanoplate-Coated Copper Mesh for Effective Emulsion Separation and Photocatalytic Degradation of Soluble Dyes

“…Thus, the as-prepared membrane processed higher photocatalytic activity, because the excitation light energy for the generation of photoelectrons and holes was relatively low for narrow band gaps. 53 The schematic diagram of the pollutant degradation mechanism by the Cu 3 Mo 2 O 9 @CM membrane was shown in Figure 8c. When the membrane was under visible light irradiation, the absorbed energy excited the electron in the valence band (e CB − ), making it transition to the conductive band and simultaneously generating a hole (h VB + ).…”

“…Soluble organic pollutants such as dyes are a common occurrence in oily wastewater; thus, extensive research has been done to develop membranes with photocatalytic degradation capabilities. In this work, MB and RhB with the absorption peaks at 664 and 554 nm, respectively, were selected for the evaluation of the as-prepared membrane’s photocatalytic capability.…”

“…Based on the Kubelka–Munk equation plot, the corresponding band gap of the as-prepared membrane was 2.11 eV (inset of Figure b). , The precursor membrane exhibited a broader visible light absorption band edge at 487 nm and the corresponding band gap of 2.65 eV (Figure S11). Thus, the as-prepared membrane processed higher photocatalytic activity, because the excitation light energy for the generation of photoelectrons and holes was relatively low for narrow band gaps …”

Element‐Doped Mxenes: Mechanism, Synthesis, and Applications

“…TiO 2 is the most promising photocatalyst due to its wide bandgap (3.2 eV) and fast photogenerated carrier recombination speed (1–10 ps), [ 277,278 ] which limit its large‐scale application in photocatalysis. [ 279,280 ] MXene materials optimized based on elemental doping are often used as precursor terminal functional groups for the synthesis of TiO 2 to effectively change the band position and bandgap while increasing the carrier concentration and lifetime. [ 281–284 ] Based on the negatively charged and easily oxidized properties of Ti 3 C 2 MXene, [ 53 ] Huang et al.…”

Effect of nonsolvent on the structures and properties of poly(arylene ether nitrile) films prepared by the phase inversion method

“…Poly(arylene ether nitrile) (PEN) is a typical engineering thermoplastic. The rigid aromatic backbone and polar side groups endow PEN materials with the exceptional mechanical, chemical, and thermal properties 10–13 . PEN is extensively used as the polymer matrix to prepare high performance composites for aerospace, automotive, military, and electrical applications 14–16 .…”