Industrially, piperidine is produced by the hydrogenation of pyridine, usually over a molybdenum disulfide catalyst: C5H5N + 3 H2 → C5H10NH. 2403-88-5, formula is C9H19NO, Name is 2,2,6,6-Tetramethyl-4-piperidinol. Pyridine can also be reduced to piperidine via a modified Birch reduction using sodium in ethanol. Name: 2,2,6,6-Tetramethyl-4-piperidinol.
Tang, Huiling;Li, Ruimeng;Fan, Xiaohui;Xu, Yin;Lin, Heng;Zhang, Hui research published 《 A novel S-scheme heterojunction in spent battery-derived ZnFe2O4/g-C3N4 photocatalyst for enhancing peroxymonosulfate activation and visible light degradation of organic pollutant》, the research content is summarized as follows. Waste resource recovery and water pollution control are two important issues in environmental protection. In this study, ZnFe2O4 prepared from spent alk. Zn-Mn battery was combined with g-C3N4 (CN) to form ZnFe2O4/g-C3N4 (ZFO-CN) step-scheme (S-scheme) heterojunction photocatalyst to eliminate bisphenol A (BPA) in the presence of peroxymonosulfate (PMS) under visible light (Vis, λ ≥ 400 nm). Results revealed that the ZFO-CN possessed an outstanding photocatalytic performance, which was attributed to the superior visible light harvest capacity and unique S-scheme charge transfer pathway as evidenced by XPS and electrochem. test. Reactive species including SO•-4, •OH, •O–2, 1O2 and h+ co-existed in the system, among which the non-radicals including 1O2 and h+ were inferred to be the predominant oxidation species based on the result of chem. quenching experiments The effects of catalyst dosage, PMS concentration, initial pH and inorganic ion (HCO–3, Cl–, H2PO–4, NO–3 or NH+4) on BPA removal were investigated. At 0.3 g L-1 ZFO-CN-0.5, 0.5 mM PMS and 60 min reaction time, more than 97.7% BPA was decomposed under visible light irradiation over a wide pH range of 3.5-9.0. This work provides a promising approach of constructing spent battery-derived spinel oxides into a high-efficiency heterojunction photocatalyst to activate PMS for practical wastewater treatment.
Name: 2,2,6,6-Tetramethyl-4-piperidinol, 2,2,6,6-Tetramethyl-4-piperidinol(TEMPO) is a useful research compound. Its molecular formula is C9H19NO and its molecular weight is 157.25 g/mol. The purity is usually 95%.
TEMPO is an intermediate used in the preparation of Piperidinyloxy free radical derivatives.
TEMPO is an organic compound that acts as a radical scavenger. It is stable in the presence of water and air and can be used for the inhibition of bacterial growth. TEMPO reacts with reactive intermediates to form non-reactive substances and terminate chain reactions. This process is optimal at temperatures between 0°C and 40°C and pH values between 3.5 and 7.5. TEMPO has been shown to inhibit the growth of bacteria by reacting with reactive molecules such as amines, chlorides, or low energy radicals in aqueous solution. TEMPO also has genotoxic activity that inhibits DNA synthesis in bacterial cells through oxidation of guanine residues on DNA molecules., 2403-88-5.
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem