Superoxide radical-mediated photocatalytic oxidation of phenolic compounds over Ag + /TiO 2 : Influence of electron donating and withdrawing substituents

Adsorption Characteristics of Phenolic Compounds on Graphene Oxide and Reduced Graphene Oxide: A Batch Experiment Combined Theory Calculation

“…A large number of studies have focused on waste water purification contaminated by phenols, and various techniques have been developed to efficiently remove them. At present, the most widely used methods for phenol removal have included biological degradation [2,3], photocatalytic decomposition [4,5], chemical oxidation [6,7], 2 of 13 hydrodynamic cavitation [8,9] and adsorption [10][11][12][13]. Among these approaches, adsorption seem to have a particular advantage due to its relatively low cost, speed and convenience of operation.…”

In Situ Depositing Ag NPs on PDA/SiW11V Co‐encapsulated Fe3O4@TiO2 Magnetic Microspheres as Highly Efficient and Durable Visible‐light‐driven Photocatalysts

“…For the pristine Fe 3 O 4 magnetite core, the band at 584 cm −1 is assigned to the stretching vibration of Fe−O bonds (Figure 2a) [17] . After introducing TiO 2 shell, the absorption region extends to 954 cm −1 owing to Ti−O−Ti stretching vibrations (Figure 2b) [3e] . When comparing Figure 2c with Figure 2(e, f), the SiW 11 V decoration is confirmed by the absorption peaks at 956 (Si−O), 906 (O−W), 810 (V−O), as well as 636 and 513 cm −1 (W−O‐W) [13] .…”

High‐performance photocatalysts for the selective oxidation of alcohols to carbonyl compounds

“…Kinetics for the superoxide anion radical driven photocatalytic degradation of phenols with: A, p‐ NO 2 , p‐OH, p‐Me, p‐Cl; and B, monochlorophenols (o‐,m‐ and p‐substituted), (2,4)‐DCP and (2,4,6)‐TCP. Redrawn from Xiao et al [ 26 ] …”

“…Though wide bandgap semiconductors like SiO 2 and TiO 2 may not be capable of producing 1 O 2 owing to the limited lifetime of the excitons, the formation of alcoholate complex by adsorption of the alcohol on the surface of the F I G U R E 2 Kinetics for the superoxide anion radical driven photocatalytic degradation of phenols with: A, p-NO 2 , p-OH, p-Me, p-Cl; and B, monochlorophenols (o-,mand p-substituted), (2,4)-DCP and (2,4,6)-TCP. Redrawn from Xiao et al [26] photocatalyst can produce a complex that can act as a photosensitizer to yield 1 O 2 as one of the key reaction intermediates ( Figure 3):…”