论文部分内容阅读
应用静电纺丝技术和热处理方法制备了疏水性聚乙烯醇/硅钨酸(PVA/SiW_(12)),随后利用光还原反应使银纳米粒子(AgNPs)沉积在PVA/SiW_(12)纤维上的三元复合纳米材料上。采用XPS、FT-IR和UV-Vis鉴定了掺杂材料的组成和结构。场发射扫描电镜和透射电镜显示,AgNPs的直径大小约为25nm。光催化性质结果表明,制备的Ag/PVA/SiW_(12)三元复合纳米材料与没有AgNPs存在的材料相比,具有优越的光催化活性。
Hydrophobic polyvinyl alcohol / silicotungstic acid (PVA / SiW_ (12)) was prepared by electrospinning and heat treatment. Silver nanoparticles (AgNPs) were deposited on PVA / SiW_ (12) fibers by photoreduction Of ternary composite nanomaterials. The composition and structure of the doped materials were identified by XPS, FT-IR and UV-Vis. Field emission scanning electron microscopy and transmission electron microscopy showed that the diameter of AgNPs was about 25nm. The photocatalytic results show that the prepared Ag / PVA / SiW_ (12) ternary nanocomposites have superior photocatalytic activity compared with the materials without AgNPs.