中南民族大学学报（自然科学版）2016，Vol.35Issue(1)：17-22,6.
α-Bi2 O3/TiO2纳米粒子的制备及其光催化性能的研究
Preparation and Photocatalytic Properties ofα-Bi2 O3/TiO2 Nanoparticles
摘要
Abstract
α-Bi2 O3/TiO2 composite nanoparticles were synthesized through a two-step hydrothermal method. Transmission electron microscopy ( TEM ) , X-ray photoelectron spectroscopy ( XPS ) , X-ray diffraction ( XRD ) and UV-vis diffuse reflection spectroscopy ( DRS ) were employed to clarify the structure and morphology of the nanoparticles. The photocatalytic activity of the composite was evaluated by using Rhodamine B ( RhB) as model contaminant. Compared with the single phaseα-Bi2 O3 or TiO2 , theα-Bi2 O3/TiO2 exhibited higher photocatalytic activity. The catalyst with 1︰5 molar ratio of α-Bi2 O3 and TiO2 showed the best photocatalytic activity:98. 5% RhB was degraded within 150 min under visible light irradiation. After three cycles, the catalyst still exhibited good photocatalytic activity.关键词
α-Bi2 O3/ TiO2 纳米粒子/罗丹明B/光催化降解Key words
α-Bi2 O3/TiO2/Rhodamine B/photocatalysis分类
化学化工引用本文复制引用
黄正喜,刘献平,吴腊梅,袁誉洪..α-Bi2 O3/TiO2纳米粒子的制备及其光催化性能的研究[J].中南民族大学学报（自然科学版）,2016,35(1):17-22,6.基金项目
国家民委科研基金资助项目(09ZN02) （09ZN02）
中南民族大学中央高校基本科研业务费专项资金项目(CZY15004) （CZY15004）
