CAJ | 학술논문

以Bi（NO3）3·5H2 O和（NH4）2 TiF6为原料，采用微波水热法在120℃～220℃反应1 h得到了具有不同形貌的粉体。借助XRD、FE-SEM 和EDS等分析手段对粉体的组成和形貌进行了表征，并以罗丹明B溶液为目标降解物，研究了200℃下所得粉体的光催化性能。结果表明：所得粉体是一种新型的F掺杂钛酸铋粉体，其中Bi、T i、O、F的原子比例约为6∶11∶27∶8；随着反应温度的升高，粉体形貌从球形向六棱短柱状转变；紫外光照射下粉体具有较好的降解罗丹明B溶液的能力。
이Bi（NO3）3·5H2 O화（NH4）2 TiF6위원료，채용미파수열법재120℃～220℃반응1 h득도료구유불동형모적분체。차조XRD、FE-SEM 화EDS등분석수단대분체적조성화형모진행료표정，병이라단명B용액위목표강해물，연구료200℃하소득분체적광최화성능。결과표명：소득분체시일충신형적F참잡태산필분체，기중Bi、T i、O、F적원자비례약위6∶11∶27∶8；수착반응온도적승고，분체형모종구형향륙릉단주상전변；자외광조사하분체구유교호적강해라단명B용액적능력。
Powders with different morphologies were synthesized by microwave-hydrothermal method at 120 ℃ ~220 ℃ for 1 h ,using Bi(NO3 )3 · 5H2 O and (NH4 )2 TiF6 as the the raw materials .The powders were characterized by XRD ,FE-SEM and EDS .The results indicate that the crystal phase of powders is a new type of F-doped bismuth titanate ,in which the molar ratio in Bi ,Ti ,O and F is 6∶11∶27∶8 .With the increase of the reaction tempera-ture ,the powder morphology transforms from sphere to six edge short column .The photo-catalytic experiment shows that the sample prepared at 200 ℃ has good photocatalytic prop-erty for the degradation of Rhodamine-B aqueous solution under ultraviolet light .