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Electrochemical synthesis of copper(II) oxide nanorods and their application in photocatalytic reactions
摘要： A new way of synthesizing nanoscale copper oxide particles is described in this work. Oxides of an intermediate metal, such as copper oxide, can be used as an effective semiconductor in the photocatalytic reactions once they are prepared in a special way. The CuO nanorods were synthesized electrochemically under surfactant-free, static conditions. The obtained nanorods have an average length of less than 50 nm. The CuO nanorods were used as a heterogeneous catalyst in an aqueous medium. 2,4-Dichlorophenol (DCP) was used as a probe molecule. The CuO nanorods showed an excellent ability to degrade DCP under visible light and without the need for any auxiliary oxidizing agent.
关键词： CuO,DCP,Visible light,Degradation,Nanorods,Heterogeneous catalyst
更新于2025-09-23 15:22:29
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A Novel Anion Doping for Stable CsPbI <sub/>2</sub> Br Perovskite Solar Cells with an Efficiency of 15.56% and an Open Circuit Voltage of 1.30 V
摘要： Currently, the efficient preparation of imines is still a great challenge under mild conditions. In this article, by incorporating 2-acetylpyridine thiosemicarbazone (HL), Co(NO3)2·6H2O and Na2MoO4·2H2O, a new compound [Co(L)2]2[Mo6O19] (1) was prepared and characterized by elemental analysis (EA), infrared (IR) spectra, ultraviolet–visible (UV–Vis) spectra, powder X-ray diffractometry (PXRD) spectra, X-ray photoelectron spectroscopy (XPS) and X-ray single-crystal diffraction. 1 could be used as a heterogeneous catalyst for oxidative coupling of amines in a comparatively mild condition. Furthermore, 1 exhibited remarkable catalytic performance for oxidation coupling of amines to imines with high yield in the presence of tert-butyl hydroperoxide (TBHP) (up to 92%). Kinetic measurements of the oxidation of benzylamine suggest that the rate law is r = k′[BnNH2][TBHP] (k′ = k[cat] = 0.2338 L mol?1 h?1). Additionally, 1 can be recycled at least three times without a distinct loss of activity.
关键词： Isopolyoxometalate,Heterogeneous catalyst,Imines,Oxidation
更新于2025-09-11 14:15:04