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Qu D.,MOE of Key Laboratory of Bioinorganic and Synthetic Chemistry | Xie F.,Institute of Optoelectronic and Functional Composite Materials | Meng H.,Sun Yat Sen University | Gong L.,Institute of Optoelectronic and Functional Composite Materials | And 5 more authors.
Journal of Physical Chemistry C | Year: 2010

Nanocrystalline CeO2-Tb2O3 composite oxides films with various morphologies were prepared by electrodeposition under different conditions. These samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy (RS), and X-ray photoelectron spectroscopy (XPS). The magnetic properties of the samples were also studied. By increasing the concentration of Tb(NO3)3 or current density, the CeO2-Tb2O3 films with nanobelt structure changed into a blossom-shaped structure with lots of wrinkles and large surface area. XRD and Raman spectroscopy showed the crystal sizes of the samples to be 4-7 nm. XPS analysis indicated that higher current density was favorable to the deposition of CeO2 and inhibited the formation of Tb2O3. The morphology and magnetic property of the samples were determined by the composition. Only the sample mainly composed of Tb 2O3 showed ferromagnetism. Copyright © 2010 American Chemical Society. Source


Zhai T.,Institute of Optoelectronic and Functional Composite Materials | Xie S.,Institute of Optoelectronic and Functional Composite Materials | Lu X.,Institute of Optoelectronic and Functional Composite Materials | Xiang L.,Jinan University | And 7 more authors.
Langmuir | Year: 2012

Herein we report the electrochemical synthesis of porous Pr(OH)3 nanobelt arrays (NBAs), nanowire arrays (NWAs), nanowire bundles (NWBs), and nanowires (NWs) and their applications as dye absorbents in water treatment. These Pr(OH)3 nanostructures exhibit high efficient and selective adsorption of the dyes with amine (-NH2) functional groups such as Congo red, reactive yellow, and reactive blue. The high efficiency and selectivity is attributed to the large effective surface area of the porous structure, plentiful hydroxyl groups, and basic sites on the Pr(OH)3 surface. Furthermore, the toxicity studies of these porous Pr(OH)3 nanostructure show a negligible effect on seed germination, indicating that they hold great potential as environmentally friendly absorbents in water treatment. © 2012 American Chemical Society. Source


Wang N.,Institute of Optoelectronic and Functional Composite Materials | Yang Y.H.,Institute of Optoelectronic and Functional Composite Materials | Chen J.,Institute of Optoelectronic and Functional Composite Materials | Xu N.,Institute of Optoelectronic and Functional Composite Materials | Yang G.,Institute of Optoelectronic and Functional Composite Materials
Journal of Physical Chemistry C | Year: 2010

One-dimensional (1D) Zn-doped In2O3-SnO2 superlattice nanostructures have been fabricated on singlecrystal silicon substrates by the layer-by-layer growth mode via the thermal chemical vapor transport and condensation with Au catalysts. The morphology, structure, and composition of the as-synthesized 1D superlattice were analyzed in detail. To exploit the potential applications of the fabricated nanostructures, the field emission properties of samples were characterized. The growth mechanism of the 1D Zn-doped In2O3-SnO2 superlattice nanostructures was discussed on the basis of the vapor-liquid-solid process. © 2010 American Chemical Society. Source

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