Journal
FUNCTIONAL MATERIALS LETTERS
Volume 9, Issue 1, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1793604716500132
Keywords
Photocatalysis; Nd-doped TiO2; mesoporous microspheres; methyl orange
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Funding
- Foundation of Shanghai University of Engineering Science [(15)HG-002, 2012gp13]
- Open Fund of State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University [LK1209]
- National Natural Science Foundation of China [21176215, 21176102, 21476136]
- Natural Science Foundation of Jiangsu Province [BK20131100]
- Innovation Program of Shanghai Municipal Education Commission [14ZZ160]
- Connotation Construction Project of SUES [Nhky-2015-05]
- Sino-German Center for Research Promotion [GZ935]
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Nd-doped TiO2 mesoporous microspheres with possessing regular micro/nanostructure were synthesized by a simple and facile method. The structure and optical properties of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N-2 adsorption-desorption isotherms and UV-Visible absorbance spectroscopy. It was revealed that Nd-doped TiO2 mesoporous microspheres are composed of primary nanoparticles with a particle size of similar to 25 nm. The photocatalytic activities of all the samples were evaluated by degradation methyl orange (MO) in aqueous solution as a model reaction under xenon lamp light irradiation. The results showed that the doped samples demonstrated a higher photocatalytic activity than TiO2 mesoporous microspheres, and the MO of 10 mg/mL almost could be completely degraded by the Nd-doped TiO2 mesoporous sample (the dosage of Nd salt to TiO2 is 6%) under xenon lamp light irradiation within 1 h.
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