The fabrication of Au/Pd plasmonic alloys on UiO-66-NH₂: an efficient visible light-induced photocatalyst towards the Suzuki Miyaura coupling reaction under ambient conditions

Abstract

The current study on Au/Pd@UiO-66-NH2 explores a novel approach towards photocatalytic SMC coupling reaction. This investigation highlights a well studied mechanistic pathway towards the formation of biphenyl as the target product.

Metal oxide integrated metal organic frameworks (MO@MOF): rational design, fabrication strategy, characterization and emerging photocatalytic applications

“…[1][2][3] Afterwards its application was extended extensively towards a wide range of photo-catalytic reactions such as hydrogen (H 2 ) evolution, pollutant degradation, dye degradation, antibiotic degradation and organic transformation reactions. [4][5][6][7][8] So, it is quite essential to develop effective photocatalysts having high photon trapping capacity, high stability, high active surface area, low fabrication cost and an environment friendly nature. [9][10][11][12][13][14][15] For this purpose, a wide variety of photocatalysts have been developed; however, due to less light harvesting efficiency, low charge separation and mobility, and high exciton recombination rates, these semiconductors are still far from commercialization.…”

Recent Progress in Plasmonic Hybrid Photocatalysis for CO2 Photoreduction and C–C Coupling Reactions

“…Therefore, the AuPd/g-C 3 N 4 nanohybrid showed a very high TOF of 7920 h −1 in the C-C cross-coupling reaction. Other researchers have used a variety of support materials such as semiconductors (e.g., CeO2, graphitic carbon nitride (g-C3N4)) [104,105], metal-organic frameworks (MOF, UiO-66-NH2) [106], polymers (e.g., perylene bisimide (PBI), polystyrene) [107,108], wide band gap semiconductors (TiO2) [109][110][111][112], and silica [113]. Semiconductors that have narrower band gaps than 3.1 eV (i.e., 2.7 eV for g-C3N4) can absorb visible light to generate electron-hole pairs, which are transferred to metal NPs.…”

“…The pore volume and surface area can be controlled by using the functional group. Noble metals can be introduced into MOFs, and they exhibit high dispersion stability owing to the ultra-high surface area [106]. MOFs such as UiO-66-NH 2 are similar to semiconductors in that they have a band gap (approximately 2.67 eV) capable of absorbing visible light.…”

“…The pore volume and surface area can be controlled by using the functional group. Noble metals can be introduced into MOFs, and they exhibit high dispersion stability owing to the ultra-high surface area [106]. In general, wide band gap semiconductors such as TiO2 display great light at wavelengths below 400 nm, making it difficult to expect visible light abs catalytic reactions [37].…”

Metal–Organic Framework MIL-101(Fe) Nanoparticles Decorated with Ag Nanoparticles for Regulating the Photocatalytic Phenol Oxidation Pathway for Cr(VI) Reduction

“…[13][14][15][16] Therefore, photocatalysts with high activity generally have enhanced hole-electron separation efficiency. [17][18][19][20][21][22] This case is not vice versa since the electron-induced Cr(VI) reduction requires efficient surface adsorption of anion Cr(VI) on the photocatalyst, which restricts the photocatalysts with low isoelectric points to strongly acid conditions. [23][24][25][26] Meanwhile, the quinone derivatives oxidized from phenol, including hydroquinone (HQ) and semiquinone (SQ), are effective for Cr(VI) reduction.…”