Chemistry, like all the natural sciences, begins with the direct observation of nature— in this case, of matter.127-19-5, Name is N,N-Dimethylacetamide, SMILES is CC(N(C)C)=O, belongs to amides-buliding-blocks compound. In a document, author is Chen, Xiaobing, introduce the new discover, Recommanded Product: 127-19-5.
Catalytic ozonation of iohexol with alpha-Fe0.9Mn0.1OOH in water: Efficiency, degradation mechanism and toxicity evaluation
Iohexol, a widely used iodinated X-ray contrast media, is difficult to completely degrade with the traditional water treatment process. Catalytic ozonation with synthesized alpha-Fe0.9Mn0.1OOH as the catalyst can significantly promote the degradation of iohexol relative to that with ozonation alone. Hydroxyl radicals play a predominant role during the degradation of iohexol. The effect of various factors, including catalyst dose, ozone dose, iohexol concentration and water matrix factors, on the catalytic performance were investigated. The presence of alpha-Fe0.9Mn0.1OOH in the catalytic system can significantly promote the removal of iohexol and mineralization of the dissolved organic carbon in real water samples. The intermediate products were determined by high -resolution liquid chromatography, and the reaction site was predicted by frontier electron density (FED) calculations. The degradation mechanism of iohexol followed the processes of H-abstraction, amide hydrolysis, amide oxidation, and .OH substitution. Higher exposure concentrations of iohexol had a negative effect on the survival and hatching rates in the development of zebrafish embryos. The autonomic movement process and heartbeat rate of the zebrafish larvae showed significant differences as the exposure concentration of iohexol increased. The catalytic ozonation process with alpha-Fe0.9Mn0.1OOH can decrease the toxicity of iohexol containing water.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 127-19-5 is helpful to your research. Recommanded Product: 127-19-5.