Effects of the structure of the Rh3+ modifier on photocatalytic performances of an Rh3+/TiO2 photocatalyst under irradiation of visible light

Visible‐Light‐Driven Photocatalysis‐Enhanced Nanozyme of TiO2 Nanotubes@MoS2 Nanoflowers for Efficient Wound Healing Infected with Multidrug‐Resistant Bacteria

“…[26][27][28] However, the TiO 2 has generally limited with UV light responsibility due to its large 3.2 eV bandgap. In order to narrow the bandgap, tremendous efforts have been carried out for the TiO 2 modification, including surface deposition of Au, Ag, or Pd, [29][30][31][32] doping with metallic ions with Fe 3+ , [33] Ce, [34] Cu, [35] Rh 3+ , [36] Ti 3+ , [37,38] and Mo [39] and graphene oxide, [40,41] thereby To enhance the catalytic activity of the nanozymes for efficient wound healing infected with multidrug-resistant bacteria, photo-based motivations have been suggested, but attention is mainly focused on the external stimulus of near-infrared light, while the inexhaustible visible one is promising but lack of study. Herein, an efficient visible light-stimulated peroxidase-like nanozyme system, TiO 2 nanotubes coated with MoS 2 nanoflowers (TiO 2 NTs@MoS 2 ), is discovered for efficient bacterial treatment.…”

“…[ 26–28 ] However, the TiO 2 has generally limited with UV light responsibility due to its large 3.2 eV bandgap. In order to narrow the bandgap, tremendous efforts have been carried out for the TiO 2 modification, including surface deposition of Au, Ag, or Pd, [ 29–32 ] doping with metallic ions with Fe 3+ , [ 33 ] Ce, [ 34 ] Cu, [ 35 ] Rh 3+ , [ 36 ] Ti 3+ , [ 37,38 ] and Mo [ 39 ] and graphene oxide, [ 40,41 ] thereby increasing its visible‐light photocatalytic activity. Since visible light is the main component of sunlight, making full use of visible light for photocatalysis enzymatic enhancement is expected to provide abundant and convenient photo stimuli for the photo‐excited nanozymatic treatment of bacterial infection.…”

Investigation of the Sn4+-distribution and photocatalytic performance of Sn4+/TiO2 hollow fiber nanomaterials

“…10 Kinato et al doped Ru 3+ ions into TiO 2 to improve its photocatalytic efficiency. 11 As seen, doping metal ions into TiO 2 indeed improves the photocatalytic activity to some extent and the experimental results have also demonstrated that its photocatalytic performance is related to the type and amount of as-doped metal ions. Generally, it is common sense that a heterogeneous catalytic reaction mainly occurs on the surface/at the interface of the catalyst, that is to say, the surface/interface state of a heterogeneous catalyst is very important for its catalytic property.…”

“…In addition, the quick recombination of photogenerated charges is also another limitation for achieving a high photocatalytic efficiency of TiO 2 . 8 Therefore, various modification methods, such as doping metal ions and nonmetal elements, [9][10][11][12][13] coupling narrow-band semiconductors, [14][15][16] and combining conjugated polymers, 17,18 have been developed and employed to broaden the light response range of TiO 2 and reduce the recombination of charge carriers.…”

AuOx Surface Oxide Layer as a Hole-Transferring Cocatalyst for Water Oxidation over Au Nanoparticle-Decorated TiO2 Photocatalysts

“…Various strategies for driving a photocatalytic reaction under irradiation of visible light have been reported. The strategies include synthesis and use of narrow bandgap semiconductors, sensitization of wide bandgap semiconductors with transition-metal ions, , metal oxide clusters, , or dyes, and the combination of two different photocatalysts called a Z-scheme. , Recently, modification of semiconductors with Au nanoparticles (NPs) has been recognized as a new strategy for preparation of photocatalysts responding to visible light. Gold, the particle size of which is several tens of nanometers, shows photoabsorption (extinction) at around 550 nm due to surface plasmon resonance (SPR), and various reactions over plasmonic photocatalysts including decomposition of an organic substrate, − selective oxidation of an aromatic alcohol, − H 2 formation from alcohols, − and reduction of organic compounds , have been reported.…”