Novel Cu2O/Cu-MOF/rGO is reported as Highly Efficient Catalyst for Reduction of 4-Nitrophenol
کد مقاله : 1012-INZC6
مرتضی ابراهیم نژاد افروزی *
مدیر دپارتمان شیمی و نساجی
چکیده مقاله:
Cu-MOF/rGO nanocomposite was synthesized by a one step hydrothermal method and used as proper support for Cu2O particles. Divers microscopic and spectroscopic methods were applied to characterize morphology and structure of Cu2O/Cu-MOF/rGO nanocatalyst. Catalytic results of 4-nitrophenol reduction in the presence of NaBH4 ascertained that as-synthesized nanocomposite shown remarkable improved activity compared with pure Cu2O particles. Enhanced catalytic performance of nanocomposite can be ascribed to the high adsorption ability of Cu-MOF and effective electron transfer due to the presence of rGO. A possible mechanism for catalytic reduction of 4-nitrophenol was proposed based on synergistic effects between Cu2O and Cu-MOF/rGO in nanocomposite. The catalytic activity of Cu2O/Cu-MOF/rGO was explored in catalytic reduction of 4-NP to its correspond aminophenol. A neutral aqueous solution of 4-NP indicates an intensive absorption peak at 317 nm. In alkaline condition (after addition of NaBH4), 4-nitrophenolate ions are produced and the maximum of this peak shift to 400 nm.
کلیدواژه ها:
4-NP reduction, Cu-based Metal organic frameworks, Cu2O, Reduced graphene oxide.
وضعیت : مقاله پذیرفته شده است