TY - JOUR
T1 - Synthesis and photoluminescent properties of strontium tungstate nanostructures
AU - Sun, Lingna
AU - Guo, Qingrong
AU - Wu, Xinglong
AU - Luo, Shengjun
AU - Pan, Wanlong
AU - Huang, Kunlin
AU - Lu, Junfeng
AU - Ren, Ling
AU - Cao, Minhua
AU - Hu, Changwen
PY - 2007/1/18
Y1 - 2007/1/18
N2 - Strontium tungstate nanoparticles with diameters of 40-50 nm, nanopeanuts with diameters of 100-150 nm, and nanorods with a rough surface were controllably synthesized by a solvothermal-mediated microemulsion method. Various comparison experiments showed that several experimental parameters, such as the molar ratio (w) between water and CTAB and the concentration of reactants, played important roles for the morphological control of Sr(NO 3)2 nanostructures. When the concentration of the Sr(NO3)2 aqueous solution was kept at 0.3 M, the morphology of the as-synthesized products elongated from nanospheres, to nanopeanuts, and to nanorods with the increase of the w value. A possible mechanism is proposed for the selective formation of the different morphologies. The SrWO4 samples with different morphologies exhibited different photoluminescent properties. X-ray powder diffraction, transmission electron microscopy, selected area electron diffraction, and field-emission scanning electron microscopey were used to characterize these products.
AB - Strontium tungstate nanoparticles with diameters of 40-50 nm, nanopeanuts with diameters of 100-150 nm, and nanorods with a rough surface were controllably synthesized by a solvothermal-mediated microemulsion method. Various comparison experiments showed that several experimental parameters, such as the molar ratio (w) between water and CTAB and the concentration of reactants, played important roles for the morphological control of Sr(NO 3)2 nanostructures. When the concentration of the Sr(NO3)2 aqueous solution was kept at 0.3 M, the morphology of the as-synthesized products elongated from nanospheres, to nanopeanuts, and to nanorods with the increase of the w value. A possible mechanism is proposed for the selective formation of the different morphologies. The SrWO4 samples with different morphologies exhibited different photoluminescent properties. X-ray powder diffraction, transmission electron microscopy, selected area electron diffraction, and field-emission scanning electron microscopey were used to characterize these products.
UR - http://www.scopus.com/inward/record.url?scp=33847683394&partnerID=8YFLogxK
U2 - 10.1021/jp064923d
DO - 10.1021/jp064923d
M3 - Article
AN - SCOPUS:33847683394
SN - 1932-7447
VL - 111
SP - 532
EP - 537
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 2
ER -