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Content loaded within last 14 days Optimization on Adsorption Process of Congo Red onto Magnetic Ni0.5Cu0.5Fe2O4/SiO2 Nanocomposites and Their Adsorption Mechanism

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Magnetic Ni0.5Cu0.5Fe2O4/SiO2 nanocomposites were prepared via a solution combustion process, and were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), Energy dispersive X-ray Spectroscopy (EDX) and vibrating sample magnetometer (VSM). The magnetic Ni0.5Cu0.5Fe2O4/SiO2 nanocomposites were employed to remove Congo red (CR) from aqueous solution, and the adsorption process was optimized by response surface methodology (RSM). The optimum conditions were the silica content of 12.6 wt%, the calcination temperature of 501 °C and the pH value of 7.13. The adsorption kinetics and the adsorption isotherm of CR onto magnetic Ni0.5Cu0.5Fe2O4/SiO2 nanocomposites at room temperature were investigated, and the intraparticle diffusion kinetics model and Redlich-Peterson isotherm model fitted well the respective process.
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Keywords: Adsorption Isotherm; Adsorption Kinetics; Congo Red; Magnetic Ni0.5Cu0.5Fe2O4/SiO2 Nanocomposites; Solution Combustion Process

Document Type: Research Article

Affiliations: 1: School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China 2: College of Vanadium and Titanium, Panzhihua University, 617000, P. R. China

Publication date: February 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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