Liu, Li; Li, Yuxin; Pang, Yaqian; Lan, Yeqing; Zhou, Lixiang published their research in Chemical Engineering Journal (Amsterdam, Netherlands) on December 1 ,2020. The article was titled 《Activation of peroxymonosulfate with CuCo2O4@kaolin for efficient degradation of phenacetin》.Quality Control of Triacetonamine The article contains the following contents:
CuCo2O4@kaolin was successfully synthesized by a sol-gel method and used as a heterogeneous catalyst to activate peroxymonosulfate (PMS) for the degradation of phenacetin (PNT). The results demonstrated that 10 mg/L PNT was completely decomposed by 1 mM PMS activated with 0.1 g/L CuCo2O4@kaolin within 15 min at initial pH 7. CuCo2O4@kaolin exhibited the best excellent catalytic performance among the tested catalysts, and the pseudo-first-order rate constants of PNT degradation were CuCo2O4@kaolin (0.40 min-1) > CuCo2O4 (0.22 min-1) > Co3O4@kaolin (0.10 min-1) > CuO@kaolin (0.08 min-1) > kaolin (0.02 min-1). CuCo2O4@kaolin also possessed superior stability, and the degradation efficiency of PNT declined from 100% in the first round to 80% in the fourth round. Nevertheless, a simple calcinating treatment (20 min) after the third round could restore its catalytic activity substantially and 95% removal of PNT was realized, 15% higher compared to without treatment. ·OH, SO4·-, and 1O2 were the reactive oxygen species driving the PNT degradation Based on the results mentioned above, characterizations of CuCo2O4@kaolin, and intermediates of PNT degradation, the possible pathways and underlying mechanisms of the PNT degradation in the CuCo2O4@kaolin/PMS system were deduced. CuCo2O4@kaolin/PMS had a universal degradation potential toward various organic pollutants, and the degradation efficiencies of sulfisoxazole, p-nitrophenol, chloramphenicol, and 2,4,6-Trichlorophenol reached 95-100% within 5-45 min. Thus, this work provides a novel and efficient PMS activator through an eco-friendly synthetic route, and it may be put into practice to degrade organic matter in wastewater.Triacetonamine(cas: 826-36-8Quality Control of Triacetonamine) was used in this study.
Triacetonamine(cas: 826-36-8) is a member of piperidine. Piperidine-containing compounds are also frequently employed in synthesis as ligands or auxiliaries. Accordingly, many efforts have been devoted to the development of novel methods for the synthesis of these compounds over the years.Quality Control of Triacetonamine
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem