高等学校化学学报Issue(4)：695-701,7.DOI:10.7503/cjcu20131249
F-离子对C掺杂 Nb2 O5纳米粒子生长及光催化性能的影响
Effects of F-on the Growth and Photocatalytic Activity of C-doped Nb2 O5 Nanocrystals
摘要
Abstract
C and F co-doped Nb2 O5 photocatalysts were prepared by introducing F- ions to C-doped Nb2 O5 . The effects of F-ions on the growth and photocatalytic activity of Nb2 O5 nanocrystals were studied. The synthe-sized samples were characterized by XRD, SEM, TEM, N2 adsorption-desorption, XPS, UV-Vis and photo-degradation of RhB. The experimental results indicate that the F-ions can promote the growth of Nb2 O5 nano-crystals, especially along the direction of [001]. The results also show that the F- ions are not incorporated into the lattice of Nb2 O5 by occupying the O atoms, but physically adsorbed on the surface of Nb2 O5 nanocrys-tals. The fluorination over the surface of C-doped Nb2 O5 can enhance the generation of free · OH radicals thus accelerate the photocatalytic reaction.关键词
F-离子/C掺杂Nb2 O5/可见光/光催化Key words
F- ion/C-doped Nb2 O5/Visible light/Photocatalysis分类
化学化工引用本文复制引用
丁双,王润伟,张宗弢,裘式纶..F-离子对C掺杂 Nb2 O5纳米粒子生长及光催化性能的影响[J].高等学校化学学报,2014,(4):695-701,7.基金项目
国家自然科学基金(批准号:20971052,20770141)资助.@@@@Supported by the National Natural Science Foundation of China(Nos.20971052,20770141) （批准号:20971052,20770141）
