Novel dendrite-like CuCr2O4 photocatalyst prepared by a simple route in order to remove of Azo Dye in textile and dyeing wastewater

Abstract

In this work, we report the preparation of dendrite-shaped CuCr 2 O 4 photocatalyst by an anionic surfactant sodium dodecyl sulphate-mediated co-precipitation method by using [Cu(en) 2 (H 2 O) 2 ]Cl 2 and [Cr(en) 3 ]Cl 3 Á 3H 2 O as suitable precursors. The photocatalyst was characterized by Fourier transform infrared, X-ray powder diffraction, field emission scanning electron microscopy, energy-dispersive spectroscopy, and UV-Vis diffuse reflectance spectroscopy. The catalytic activity of dendrite CuCr 2 O 4 was evaluated by the photodegradation of Acid Violet 7, Acid Blue 113, and Acid Brown 214. The results revealed that the photocatalytic activity of dendrite-shaped CuCr 2 O 4 was much higher than that of other morphology under UV and Vis irradiation. Our results provide some new insights on the performance of solar active photocatalysts on water treatment of textile and dyeing wastewater.

Nanocrystalline barium stannate: facile morphology-controlled preparation, characterization and investigation of optical and photocatalytic properties

“…It is generally accepted that photocatalytic activity depends mainly on the diffusion of reactants and products, and therefore the favorable distribution of the pore. It seems that the very well photocatalytic activity of the as-prepared nanocrystalline barium stannate can be due to the favorable distribution of the pore, high hydroxyl amount and high separation rate of the charge carriers [27,[31][32][33][34][35][36] (Fig. 9b).…”

Preparation of nanocrystalline praseodymium oxide with different shapes via a simple thermal decomposition route

“…It is generally accepted that the heterogeneous photocatalytic processes comprise diffusion, adsorption and reaction steps, and suitable distribution of the pore is effective and useful to diffusion of reactants and products, which prefer the photocatalytic reaction. In this investigation, the very well photocatalytic activity can be related to appropriate distribution of the pore, high hydroxyl amount and high separation rate of charge carriers [28][29][30][31][32][33][34][35]. For preparing the nanostructured materials via thermal treatment way, the choice of precursor plays a significant role.…”

Synthesis and characterization of barium molybdate nanostructures with the aid of amino acids and investigation of its photocatalytic degradation of methyl orange

“…Especially, because of the increasing need for high area density storage, the synthesis and characterization of semiconductor nanocrystals have been extensively investigated [4][5][6][7][8]. In recent years, tungstates and molybdates are materials that have attracted the interest of many researchers due to their broad potential to industrial application including optic fiber, humidity sensor, catalysts, scintillation detector, solid-state lasers, photoluminescent devices, microwave applications, and so on [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”