Study on the oxidation transformation of Hexamethyleneimine (cas 111-49-9) in a confined region of zeolites
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Add time:08/20/2019 Source:sciencedirect.com
Two kinds of zeolites (mordenite and AlPO4-5, with MOR and AFI topology, respectively) have been synthesized using Hexamethyleneimine (cas 111-49-9) (HMI) as structure directing agent. It is found that HMI is incorporated intact in its protonated form in MOR and AFI. Furthermore, the oxidation of HMI restricted in the two zeolites by H2O2 has been studied. Analysis of FT-IR, Raman spectra, TG/DTA, EA and 13C MAS NMR show that the restricted HMI molecules are changed into saturated hydrocarbons and some other amines in AFI, whereas unchanged in MOR. The adsorption tests illustrated that the as-synthesized samples and their oxidized products have high adsorption capacity for Ni(II). This work opens new opportunities for further research of molecular reactions on the inorganic hybrids, and provides a new idea for the application of SDAs present in molecular sieves.
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