Peroxymonosulfate as inducer driving interfacial electron donation of pollutants over oxygen-rich carbon–nitrogen graphene-like nanosheets for water treatment

Water self-purification via electron donation effect of emerging contaminants arousing oxygen activation over ordered carbon-enhanced CoFe quantum dots

“…Thus, polarity enhancement regulation of electrons and energy on the material surface by cation-π interactions is promising. Our previous work found that during the activation of H 2 O 2 and PMS, the dual-reaction centers (DRCs) catalysts formed by combining molecular orbital theory to construct electron-poor/rich micro-regions on the catalyst surface can trigger the electron-donation effect of pollutants (pollutants are thus oxidized or cleaved) and DO can also be activated to generate ROS (O 2 •− , • OH, and 1 O 2 ) to attack the pollutants [ [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] ]. This suggests that constructing a cation-π structure is a feasible strategy for inducing an unbalanced distribution of electrons on the catalyst surface to activate dissolved oxygen.…”

Simultaneous Emerging Contaminant Removal and H2O2 Generation Through Electron Transfer Carrier Effect of Bi─O─Ce Bond Bridge Without External Energy Consumption

“…Our previous research [21][22][23][24][25][26][27][28][29] revealed that the construction of dual reaction centers (DRC) with electron-directed distribution on the catalyst surface by lattice doping methods is essential to reduce the dependence on H 2 O 2 and overcome the limitations of the Fenton reaction, which provides inspiration for an in-depth exploration of tuning the electron distribution on the catalyst surface to completely get rid of the dependence on extra added H 2 O 2 . Bismuth oxide (Bi 2 O 3 ), as a member of bismuth-based semiconductors, is favored for photocatalysis due to its high electrochemical stability, small bandgap (2.6-2.8 eV), and high redox reversibility.…”