文献类型：期刊文献

英文题名：Effect of Halide Ions on the Microstructure of Bi2WO6 with Enhanced Removal of Rhodamine B

作者：Liang, Ying[1];Shi, Jiawei[1]

机构：[1]East China Univ Sci & Technol, Sch Sci, Inst Nucl Technol & Applicat, Shanghai 200237, Peoples R China

年份：2020

卷号：30

期号：8

起止页码：2872

外文期刊名：JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS

收录：;EI(收录号：20200107978776);WOS:【SCI-EXPANDED(收录号:WOS:000505410700001)】；

语种：英文

外文关键词：Halide ions; Surface activity; Adsorption; Photodegradation

摘要：Bi2WO6 hierarchical structures have been synthesized by a halide ions-assisted hydrothermal method using Bi(NO3)(3)center dot 5H(2)O and Na2WO4 center dot 2H(2)O as the raw materials without any template or surfactant. It is interesting to note that the halide ions (F-, Cl- and Br-) play a key role on the microstructure of Bi2WO6, especially the morphology and surface activity. At the presence of F- in the precursor, the prepared Bi2WO6 exhibits a sheet-like morphology with flat surface, and the sheets further intersect with each other to form a three-dimensional structure. However, when Cl- or Br- exist in the precursor, the obtained Bi2WO6 with chloride or bromide ions adsorbed on the surface shows a flower-like porous structure constructed by nanosheets, and each nanosheet is assembled by loosely contacted ultrathin nanoplates. The Bi2WO6 structures prepared with the assistance of Cl- or Br- behave selectively enhanced adsorption and photodegradation for organic dyes mainly attributed to the active surface and special morphology.