Modulating oxygen vacancies on bismuth-molybdate hierarchical hollow microspheres for photocatalytic selective alcohol oxidation with hydrogen peroxide production

Cellulose‐Derived Carbon Dot‐Guided Growth of ZnIn2S4 Nanosheets for Photocatalytic Oxidation of 5‐Hydroxymethylfurfural into 2,5‐Diformylfuran

“…⋅O 2 − combines with the released proton and evolves into ⋅OOH. Ultimately, DFF and H 2 O 2 are formed with ⋅OOH extracting a proton from carbon‐centered radicals [29] . The generation of H 2 O 2 was detected through iodometry [29] and the yield is determined as 1651 μmol g −1 (Figure S5).…”

“…Ultimately, DFF and H 2 O 2 are formed with * OOH extracting a proton from carbon-centered radicals. [29] The generation of H 2 O 2 was detected through iodometry [29] and the yield is determined as 1651 μmol g À 1 (Figure S5). Thanks to the intimate interface bonding (À COO À with Zn 2 + and In 3 + ) of CC/ ZnIn 2 S 4 hybrids and favorable conductivity of carbon dots, [3,7,8] the migration efficiency of charge carriers is boosted remarkably and the recombination of electrons and holes is effectively retarded, thereby leading to the optimized performance for photocatalytic oxidation of 5-HMF.…”

Improved H2O2 photogeneration and stability on rational tailored polymeric carbon nitride via enhanced O2 adsorption

“…Photocatalytic H 2 O 2 production is a promising and ideal strategy that involves proton-coupled electron transfer (PCET). [6][7][8][9][10] In this green process, H 2 O 2 can be produced via a one-step two-electron O 2 reduction reaction (OS-2e-ORR, eqn (1)) [11][12][13][14][15] or two-step single-electron O 2 reduction reaction (TS-2e-ORR, eqn (2) and ( 3)). [16][17][18][19][20] For the OS-2e-ORR pathway, 1,4-endoperoxide intermediates are formed, while H 2 O 2 is produced via superoxide radicals for the TS-2e-ORR pathway.…”

Reactive oxygen species on transition metal-based catalysts for sustainable environmental applications

“…Chen et al employed OV-rich Bi 2 MoO 6 to selectively oxidize benzyl alcohol with O 2 to produce both benzaldehyde and H 2 O 2 simultaneously. 264 According to in situ ESR measurements, both carbon-centered radicals and O 2 ˙ − are key intermediates. The concentration of OVs is readily tunable, and the rate of benzaldehyde formation is 1310 μmol g −1 h −1 with OV-rich Bi 2 MoO 6 , 2.3 times that of OVs-poor Bi 2 MoO 6 .…”