文献类型：期刊文献

英文题名：Preparation and visible light photocatalytic performance of methylene blue intercalated K4Nb6O17

作者：Qu, Wenwu[1]; Chen, Feng[1]; Zhao, Bin[1]; Zhang, Jinlong[1]

机构：[1] Key Laboratory for Advanced Materials, Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2010

卷号：71

期号：1

起止页码：35

外文期刊名：Journal of Physics and Chemistry of Solids

收录：EI(收录号：20094812501349)

语种：英文

外文关键词：Potassium hydroxide - Light - Luminescence - Niobium oxide - Self assembly - X ray diffraction - Intercalation - Azo dyes

摘要：K4Nb6O17 was prepared by hydrothermal treatment of Nb2O5 in KOH solution at 180 °C, and then Methylene blue (MB) intercalated K4Nb6O17 (K4Nb6O17-MB) was prepared by one-pot reaction in which n-propylamine (PA) was used as an intercalation compound. The MB intercalated structure of K4Nb6O17-MB was characterized by HRTEM and XRD measurements. K4Nb6O17-MB shows good absorption in the visible region and is thermally stable up to 328 °C. By extending the hydrothermal time and selecting the K4Nb6O17 with high crystallinity, the K4Nb6O17-MB prepared by one-pot reaction showed higher visible light (λ>550 nm) photocatalytic activity than that prepared by traditional two-step electrostatic self-assembly deposition (ESD) method for the degradation of methyl orange (MO). ? 2009 Elsevier Ltd. All rights reserved.