Novel preparation of highly photocatalytically active copper chromite nanostructured material via a simple hydrothermal route

Abstract

Highly photocatalytically active copper chromite nanostructured material were prepared via a novel simple hydrothermal reaction between [Cu(en)2(H2O)2]Cl2 and [Cr(en)3]Cl3.3H2O at low temperature, without adding any pH regulator or external capping agent. The as-synthesized nanostructured copper chromite was analyzed by transmission electron microscopy (TEM), UV–vis diffuse reflectance spectroscopy, energy dispersive X-ray microanalysis (EDX), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy. Results of the morphological investigation of the as-synthesized products illustrate that the shape and size of the copper chromite depended on the surfactant sort, reaction duration and temperature. Moreover, the photocatalytic behavior of as-obtained copper chromite was evaluated by photodegradation of acid blue 92 (anionic dye) as water pollutant.

Sustainable synthesis of [1]benzopyran azo dyes using CuCr2O4 NPs

“…In the present work as illustrated in Scheme 1, synthesis of [1]benzopyran azo dyes 5 was occurred using highly efficient CuCr 2 O 4 NPs as catalyst. In the first run of experiments, CuCr 2 O 4 NPs were prepared according to the hydrothermal procedure reported in the literature [26].…”

“…Copper chromite nanoparticles (CuCr 2 O 4 NPs) were prepared under hydrothermal conditions [26]. First, two precursor solutions were obtained from dissolving 0. cetyltrimethylammonium bromide (CTAB) as surfactant (5 ml) was added to the above mixture (molar ratio of Ni: Cr:surfactant was 1:2:0.75) and stirred for an additional 15 min.…”

Influence of Surfactant on the Morphology and Photocatalytic Activity of Anatase TiO2 by Solvothermal Synthesis

“…It seems that when the surfactant type changes, the grain size and aggregation of TiO 2 are different. It is generally considered static repulsion and special hindrance from the reaction of interfacial energy among particles that could prevent the aggregation of nanometer particles [19]. In general, the formation of TiO 2 in the solvothermal system mainly depends on the hydrolysis rate of TBT and the growth rate of nuclei.…”

Investigation on the Thermal Behavior of Ammonium Dinitramide with Different Copper‐Based Catalysts

“…The most commonly used and effective burn rate modifiers are transition metal oxides or bimetallic compounds [13]. Among them, copper-based compound is an ecologically safe combustion catalyst, and the maximum allowable concentration of copper and its derivatives in working areas was 10~100 times higher than lead compound [14]. Moreover, different copper salts have unequal catalytic effects, as the organic or inorganic part of the copper, salt plays a certain role which affects the decomposition temperature of copper salt and also affects the condensation of copper after decomposition of the copper salt.…”