Shen, Minxian published the artcileActivation of persulfate for tetracycline degradation using the catalyst regenerated from Fenton sludge containing heavy metal: Synergistic effect of Cu for catalysis, Formula: C9H17NO, the publication is Chemical Engineering Journal (Amsterdam, Netherlands) (2020), 125238, database is CAplus.
Fenton reaction is widely used as a unique oxidation method for industrial wastewater treatment; however, it generates a massive amount of Fe sludge, which mostly contains other hazardous heavy metal wastes which can harm the environment and humans. This work proposed a sustainable method to eliminate side effects of the Fenton reaction and to transform Cu-containing Fenton sludge into an efficient catalyst for peroxymonosulfate (PMS) activation for tetracycline (TC) degradation The existence of Cu, which can increase sludge O2 vacancies, was attributed to the activation efficiency compared to Fe sludge with no Cu. X-ray diffraction and XPS results showed Fe is present as α-Fe2O3 and γ-Fe2O3; Cu mostly exists as Cu2+. Catalyst and PMS doses, pH, and recycling time effect on PMS reaction was illustrated. OH–, SO4– O2–, and 1O2 were the critical reactive oxygen species. TC decomposes into CO2 and water through six possible pathway processes with these free radicals. Given its sustainable treatment and high catalytic efficiency, dealing with Fe sludge which contains heavy metals serves as a modal practice for harmful wastewater treatment and can be popularized for broader applications.
Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about 826-36-8. 826-36-8 belongs to piperidines, auxiliary class Natural product, name is 2,2,6,6-Tetramethylpiperidin-4-one, and the molecular formula is C3H5F3O, Formula: C9H17NO.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem