Peng, Guilong published the artcileActivation of peroxymonosulfate by phosphite: Kinetics and mechanism for the removal of organic pollutants, Name: 2,2,6,6-Tetramethylpiperidin-4-one, the publication is Chemosphere (2021), 129016, database is CAplus and MEDLINE.
In this study, phosphite (HPO2-3) was used as a novel activator to activate peroxymonosulfate (PMS) for acid orange 7 (AO7) removal. Under the optimized conditions, the decolorization efficiency of AO7 was 82.1% within 60 min with rate constant values (kobs) of 0.0301 min-1. Besides, effects of the solution pH and the co-existing inorganic anions including Cl–, HCO–3, HPO2-4 and SO2-4 on AO7 removal were also investigated. Except for SO2-4, other examined co-existing inorganic anions displayed favorable effects on the removal of AO7. Furthermore, the mechanism for PMS activation by the HPO2-3 was deeply elucidated by radical scavenger including ethanol (EtOH), tert-butanol (TBA), L-histidine and tiron, and ESR (ESR) studies. It was proposed that singlet oxygen (1O2) would be the dominant reactive oxygen species (ROS) in the HPO2-3/PMS system for contamination degradation at neutral pH condition. The findings of this study provided useful information for the application of the substances in industrial wastewaters to activate PMS for organic contaminants degradation and in particular for HPO2-3-rich electroplating wastewater treatment.
Chemosphere 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 C9H17NO, Name: 2,2,6,6-Tetramethylpiperidin-4-one.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem