Large-scale synthesis of single-crystalline KNb3O8 nanobelts via a simple molten salt method
Large-scale synthesis of single-crystalline KNb3O8 nanobelts via a simple molten salt method
复制标题
简单熔盐法大规模合成单晶KNb3O8纳米带
DOI：
10.1016/j.ceramint.2009.11.007
复制
发表时间：
2010-03-01
影响因子：
5.2
通讯作者：
Shao, W. Z.
中科院分区：
文献类型：
--
作者：
Zhan, Z. Y.;Xu, C. Y.;Shao, W. Z.
采用简易熔盐合成方法，大规模合成了宽50 ~数百纳米、长数十微米的三酸钾（KNb3O8）单晶纳米带。利用x射线衍射确定了纳米带的物相，并利用扫描电镜、透射电镜和选择区电子衍射对纳米带的形貌和结构进行了表征。从紫外-可见漫反射光谱开始，估计KNb3O8纳米带的带隙约为3.45 eV。得到的KNb3O8纳米带在紫外照射下对甲基橙具有较高的光催化降解效率。(C) 2009 Elsevier Ltd and Techna Group S.r.l版权所有
Single-crystalline potassium triniobate (KNb3O8) nanobelts with widths of 50 to several hundreds nanometers and length up to tens of microns were synthesized in a large-scale by a facile molten salt synthesis method. The phase of the as-prepared nanobelts was determined by X-ray diffraction, and the morphology and structure were characterized by scanning electron microscopy, transmission electron microscopy, and selected area electron diffraction. The band gap of KNb3O8 nanobelts was estimated to be about 3.45 eV from the onset of UV-vis diffuse reflectance spectrum. The obtained KNb3O8 nanobelts exhibited high photocatalytic efficiency for the degradation of methyl orange under UV irradiation. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.