Peroxymonosulfate enhanced photocatalytic degradation of serial bisphenols by metal-free covalent organic frameworks under visible light irradiation: mechanisms, degradation pathway and DFT calculation was written by Liu, Fuyang;Dong, Qiqi;Nie, Chenyi;Li, Zhengmao;Zhang, Boaiqi;Han, Peng;Yang, Wulin;Tong, Meiping. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2022.Product Details of 620-92-8 The following contents are mentioned in the article:
Visible light driven peroxymonosulfate (PMS) activation by metal-free photocatalysts has attracted great attention. In present study, covalent organic frameworks (COF-PRD, PRD refers to pyridine) were synthesized and utilized to activate PMS to degrade bisphenol A (BPA) with visible light (VL) irradiation COF-PRD with PMS improved 3.5 times degradation kinetics for BPA degradation relative to that of COF-PRD without PMS with VL irradiation ·O2–, h+ and 1O2 dominated the BPA degradation in COF-PRD with PMS with VL irradiation Under anaerobic condition, BPA could still be effectively degraded due to the reaction of PMS with e– to generate ·SO4–. In addition to BPA, bisphenol F (BPF), bisphenol B (BPB), bisphenol Z (BPZ) and bisphenol AP (BPAP) could also be effectively degraded by COF-PRD with PMS under VL irradiation conditions. D. functional theory (DFT) calculation together with intermediates determination showed that the main degradation pathway of bisphenols (BPs) included hydroxylation, electrophilic attack and ring-opening reaction. The bioaccumulation effects of BPs were greatly reduced during the degradation process. Moreover, COF-PRD exhibited excellent reusability in ten successive cycles. Clearly, COF-PRD could be employed as photocatalytic PMS activation to degrade bisphenols under both aerobic and anaerobic conditions. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Product Details of 620-92-8).
4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Product Details of 620-92-8
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts