无机材料学报2012，Vol.27Issue(6)：643-648,6.DOI:10.3724/SP.J.1077.2012.00643
氮掺杂Bi2O3光催化剂的制备及其可见光催化性能
Preparation and Visible Light Responsive Photocatalytic Activity of Nitrogen-doped Bi2O3 Photocatalyst
摘要
Abstract
Bi2O3 photocatalysts doped with different amounts of nitrogen were synthesized by a precipitation method using bismuth nitrate and hexamethylenetetramine as precursors. The as-synthesized samples were characterized and analyzed by XRD, FT-IR, XPS, UV-Vis and PL. The results indicate that the undoped Bi2O3 displays a single monoclinic phase. While the N-doped Bi2O3 samples are mixed crystals, which were composed of tetragonal P-Bi2O3 and Bi5O7NO3 phases. The oxygen in the lattice of Bi2O3 is partially substituted by nitrogen atom, existed stably in the form of Bi-N bond. Meanwhile, nitrogen dopant promotes the formation of P-Bi2O3 phase. Compared with undoped Bi2O3, the light absorption property of N-doped Bi2O3 has apparently extended into visible light region and the fluorescence intensity decreases evidently. Furthermore, the photodegradation performance of methyl orange shows that N-doped Bi2O3 samples have excellent visible light photocatalytic activity.关键词
Bi2O3/氮掺杂/可见光/光催化/甲基橙Key words
Bi2O3/ nitrogen-doped/ visible light/ photocatalysis/ methyl orange分类
化学化工引用本文复制引用
卢远刚,杨迎春,叶芝祥,刘盛余..氮掺杂Bi2O3光催化剂的制备及其可见光催化性能[J].无机材料学报,2012,27(6):643-648,6.基金项目
四川省教育厅重点基金项目(07ZA012) （07ZA012）
