Facile synthesis of catechol functionalized aziridinofullerenes for visible light photocatalysis applications

摘要

Using nitrene chemistry, catechol functionalized aziridinofullerenes (CAC_(60)) were synthesized by reacting N-(3-azidopropyl)-2-(3,4-dihydroxyphenyl)acetamide with C_(60). Synthesis of CAC_(60) was confirmed by Fourier-transform infrared, Raman and X-ray photoelectron spectroscopies, and Thermogravi-metric analysis. The photocatalytic activity of CAC_(60) was evaluated by measuring photodegradation of a pharmaceutical compound, cimetidine. CAC_(60) exhibited the instantaneous adsorption of cimetidine, followed by effective photooxidation under visible as well as ultraviolet irradiations. From the comparison of photodegradation behaviors of unmodified control C_(60), amine functionalized aziridinofullerenes, and CAC_(60), we concluded that the aziridine and catechol moieties were responsible for the visible light activity and hydrophilicity of CAC_(60). respectively.