Journal
RSC ADVANCES
Volume 2, Issue 32, Pages 12413-12423Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra21590j
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Funding
- Department of Science and Technology of Yunnan Province via the Key Project for the Science and Technology [2011FA001]
- Key Project of Chinese Ministry of Education [210206]
- National Natural Science Foundation of China [50662006]
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The stable and crystalline phase of pure nanostructured CeO2 with various morphologies has been directly synthesized using a cationic surfactant (cetyltrimethylammonium bromide, CTAB) and cerium chloride (CeCl3 center dot 6H(2)O) at room temperature by a new, simple, and green chemical precipitation method. Thorough structural characterization techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron diffraction, and Raman spectroscopy, were employed to examine the morphology and the microstructure of the final product. The catalytic activity of the nanostructured CeO2 was tested towards the degradation of the azo dye Congo red (CR). In order to obtain the optimum degradation conditions of CR, the performance of nanostructured CeO2 with various morphologies (spherical nanoparticles, nanorods, and mixture thereof) for the removal of CR from wastewater was tested under various concentrations of CR dye and quantities of the nanostructured CeO2. The results show an excellent removal capacity for the organic pollutant CR from wastewater, making it a promising candidate for wastewater treatment.
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