Enhanced purification efficiency for pharmaceutical wastewater through a pollutant-mediated H₂O₂ activation pathway over CuZnS nano-aggregated particles

Abstract

A strategy is proposed to reduce energy consumption during wastewater treatment by utilizing pollutant-mediated H2O2 activation pathway over a novel Fenton-like catalyst CuZnS nano-aggregated particles prepared via in situ co-precipitation process.

Resourcelized conversion of livestock manure to porous cage microsphere for eliminating emerging contaminants under peroxymonosulfate trigger

“…Our previous work on the Fenton-like catalysis found that the construction of dual-reaction-centers (DRCs) with electron-rich/poor micro-regions on the catalyst surface can trigger the electron-donation effect of pollutants, which greatly replaces the ineffective oxidation process of H 2 O 2 , and significantly reduces the resource and energy consumption during the degradation of the refractory organic pollutants. 8 , 22 , 27 , 28 , 29 , 30 , 31 , 32 , 33 The work shows that it is promising to solve the disadvantages in the application stage of catalysts through structural modulation. However, the large consumption of resources and energy in the DRCs-catalyst preparation step is still unavoidable.…”

design of an innovative system for the detoxification of pharmaceutical wastewater from pharmaceutical facilities.

“…Catalytic hydrogenation is a highly effective water treatment process that offers superior selectivity and efficiency compared to traditional methods, without using any chemicals. [24,25] This process results in the production of substances that are either non-toxic or significantly less toxic and easily biodegradable. [26] This is a crucial aspect for the potential application of this process in WWTPs, as it eliminates the need for additional wastewater treatment to remove any toxic by-products that may be produced.…”

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.…”