Full solar spectrum-driven Cu2O/PDINH heterostructure with enhanced photocatalytic antibacterial activity and mechanism insight

Heterogeneous organophotocatalytic HBr oxidation coupled with oxygen reduction for boosting bromination of arenes

“…Heterogenization of PTCDA on Al 2 O 3 support PTCDA has sufficient oxidative potential for Br − oxidation (1.73 V vs. NHE, pH = 0) and reductive potential (−0.27 V vs. NHE, pH = 0) for O 2 reduction [14][15][16][17][18][19] . To heterogenize PTCDA for providing Lewis-acid sites to adsorb organic molecules and molecular O 2 to enhance catalytic activity and stability, Al 2 O 3 , an insulator, was selected as the potential cooperative support.…”

Research Progress on New Environmentally Friendly Antifouling Coatings in Marine Settings: A Review

“…Therefore, by rational design of Cu 2 O/PDINH heterostructures, the toxicity risk of Cu 2 O to environmental pollution can be reduced, full solar-spectrum-driven sterilization can be achieved and the inherent defect that Cu 2 O cannot produce 1 O 2 can be overcome. Ma et al [ 78 ] constructed an inorganic–organic photocatalytic antimicrobial agent Cu 2 O/PDINH by integrating p-type Cu 2 O and n-type PDINH heterostructure, which successfully increased the photoavailability by 75% and exhibited excellent long-term and photocatalytic antimicrobial activity, with the inhibition rates of S. aureus and P. aeruginosa remaining above 90% after 30 days, and the results of antifouling tests also showed that the Cu 2 O/PDINH antifouling coating had almost no dirt adherence after 60 days of immersion. The antibacterial mechanism of the Cu 2 O/PDINH heterogeneous structure is the synergistic effect of the toxicity of copper ions and the continuous production of ROS driven by the full solar spectrum ( Figure 13 B), so this inorganic–organic Cu 2 O/PDINH heterogeneous structure has great potential for environmentally friendly marine antifouling agent applications.…”

“… ( A ) Antibacterial mechanism of BiOI@CeO 2 @Ti 3 C 2 [ 75 ] with permission (Copyright © 2023, Elsevier). ( B ) Photos of blank, PDINH3%, Cu 2 O-3% and Cu 2 O/PDINH-3% coatings after immersion in seawater for 1, 7, 14, 30 and 60 days, respectively, and schematic diagram of antibacterial mechanism of Cu 2 O/PDINH-3% coatings [ 78 ] with permission (Copyright © 2023, Elsevier). …”

Universal Water Disinfection by the Introduction of Fe–N3 Traps between g-C3N4 Layers under Visible Light

“…Among various antibacterial technologies, photocatalytic disinfection, as a green and sustainable strategy, − has been widely promoted due to its rapid and efficient inactivation effect without obvious drug resistance and side effects, and the antibacterial process driven by solar energy is controllable, recyclable, and has a low cost. − As an exogenous antibacterial technology, it relies on induced generation of reactive oxygen radicals (superoxide radicals, hydroxyl radicals, etc.) to cause bacterial inactivation without chemical additives or harmful inactivation byproducts. , Therefore, we believe that the design of environmentally friendly and efficient semiconductor sterilization materials show broad application prospects, especially in water disinfection.…”

“…to cause bacterial inactivation without chemical additives or harmful inactivation byproducts. 21 , 22 Therefore, we believe that the design of environmentally friendly and efficient semiconductor sterilization materials show broad application prospects, especially in water disinfection.…”