Photocatalytic H2O2 production using Ti3C2 MXene as a non-noble metal cocatalyst

Effective H2O2 Production via Favorable Intermediate Desorption in Fluctuating Electrical Fields from Matrix‐Filler Mutually Enhanced P‐C3N4/PVDF‐HFP Porous Composite**

“…Ethanol was used as a sacrificial agent during the pizeocatalytic process. [36] As shown in Figure 5a, the amounts of H 2 O 2 increased linearly over time for all the samples of PCN, CN/ PVDF-HFP and PCN/PVDF-HFP. Obviously, the H 2 O 2 generation of PCN/PVDF-HFP composite film is up to 334.28 μM in two hours, which is 1.8 times that of CN/PVDF-HFP (184.9 μM) and 2.1 times that of PCN (158.2 μM).…”

“…The piezocatalytic performance of the PCN/PVDF‐HFP and reference catalysts was investigated in the ethanol solution (20 % in water) under ultrasound treatment for H 2 O 2 production. Ethanol was used as a sacrificial agent during the pizeocatalytic process [36] . As shown in Figure 5a, the amounts of H 2 O 2 increased linearly over time for all the samples of PCN, CN/PVDF‐HFP and PCN/PVDF‐HFP.…”

Photosynthesis of hydrogen peroxide in water: a promising on-site strategy for water remediation

“…Non-noble metal containing Ti 3 C 2 MXene has also been employed as a conductive component for constructing Schottky-like heterojunction photocatalysts for H 2 O 2 generation. 139 In Ti 3 C 2 /TiO 2 nanocomposites, the photogenerated electrons migrate from the CB of TiO 2 to conductive Ti 3 C 2 , resulting in the spatial separation of charge carriers. Furthermore, Ti 3 C 2 layers also inhibit the formation of Ti-OOH on the surface of TiO 2 and suppress H 2 O 2 decomposition.…”

CdS Nanoparticles Supported on Ti3C2Tx MXene for the Efficient Photocatalytic Production of H2O2: Implications for the Photocatalytic Degradation of Emerging Contaminants

“…MXenes, an emerging family of two-dimensional (2D) transition-metal carbides/carbonitrides/nitrides with a common chemical formula M n +1 X n T x , are acquired by the selective etching out of the A layers from ternary MAX phases (M n +1 AX n ), where M stands for an early transition metal (e.g., Ti, Cr, Zr, Nb, or Ta), n is an integer between 1 and 4, X denotes a carbon and/or nitrogen element, A stands for a group IIIA or IVA element, and T x denotes surface-terminated groups (e.g., O, OH, and/or F). − Among them, Ti 3 C 2 T x as a typical representative has been the most investigated due to its superior metal conductivity, good mechanical properties, large surface area, and abundant surface terminations. − Moreover, due to the suitable Fermi level and higher work function, Ti 3 C 2 T x can be combined with semiconductor materials to establish a Schottky junction at the Ti 3 C 2 T x /semiconductor interface, which remarkably facilitates the separation of photoinduced charge carriers. − Therefore, recent efforts have exhibited that the introduction of Ti 3 C 2 T x as cocatalysts into CdS could remarkably improve the hydrogen evolution performance of CdS. ,, Apart from that, Ti 3 C 2 T x also presents great potential in photocatalytic H 2 O 2 production. − For example, Yang et al revealed that Ti 3 C 2 T x could significantly enhance the photocatalytic H 2 O 2 production performance of g-C 3 N 4 . Under visible-light irradiation (λ > 420 nm), the H 2 O 2 production rate of Ti 3 C 2 /g-C 3 N 4 could reach 2.20 μmol L –1 min –1 , which is about 2.1 times that of pure g-C 3 N 4 .…”