无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2007年
10期
1796-1800
,共5页
张文莉%韩敏%关明云%贺竞辉%徐正
張文莉%韓敏%關明雲%賀競輝%徐正
장문리%한민%관명운%하경휘%서정
BaWO4%纳米线束%反相胶束%荧光
BaWO4%納米線束%反相膠束%熒光
BaWO4%납미선속%반상효속%형광
BaWO4%nanowire bundles%reverse micelle%photoluminescence
High quality BaWO4 nanowire bundles have been synthesized in toluene-sodium dodecylbenzene sulphonate (SDBS)-small amount PEG20000-H2O reverse micelle system. XRD result shows that the obtained BaWO4 belongs to tetragonal phase with scheelite structure. TEM results demonstrate that the obtained BaWO4 nanowire bundles have high aspect-ratio (＞650). The experimental results confirm that PEG20000 plays a key role for the formation of BaWO4 nanowire bundles. Other factors which influence the morphology and crystallinity of the product are also briefly discussed. Moreover, the obtained BaWO4 nanowire bundles exhibit strong photoluminescence centered at 397.3 nm with λex=343.5 nm at room temperature, which is different from the bulk BaWO4 crystals.
