Synthesis and photocatalytic property of lead molybdate dendrites with exposed (0 0 1) facet

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• 作者：Muhammad Hashim ; Chenguo Hu ; ^{hucg@cqu.edu.cn} ; Xue Wang ; Xiaoyan Li ; Donglin Guo
• 关键词：Lead molybdate ; Composite molten salt method ; Photocatalytic property
• 刊名：Applied Surface Science
• 出版年：2012
• 期刊代码：6_01694332
• 类别：ms
• 出版时间：15 May, 2012
• 卷：258
• 期：15
• 页码：5858-5862
• 文件大小：1199 K

摘要

PbMoO₄ dendrites have been synthesized by the composite molten salt method at 180 掳C. The dendritic plane is exposed on (0 0 1) facet. PbMoO₄ dendritic crystals exhibited high photocatalytic activity through the degradation of rhodamine B under the irradiation of the simulated sunlight, mainly due to the exposed facet (0 0 1). The (0 0 1) facet is assumed to provide more multi-atomic centers (PbMo₄), which are the origin of the active sites for hydrophilicity and adsorption of O₂ and the cause of the high photocatalytic activity. The photocatalytic activity of the PbMoO₄ dendrites was also compared with those of the conventional catalysts, P25 (21 nm) and TiO₂ nanoparticles (50-200 nm).