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Abstract <p>The hierarchical nest-like Sm-doped Bi<sub>2</sub>WO<sub>6</sub> samples were successfully synthesized by a simple hydrothermal method at 180°C for 20 h. They were used as a visible-light-driven photocatalyst for rhodamine B (RhB) degradation. XRD patterns of Bi<sub>2</sub>WO<sub>6</sub> doped with different weight contents of Sm were similar with that of the pure orthorhombic Bi<sub>2</sub>WO<sub>6</sub> phase. The electron microscopic analyses show that the products were uniform hierarchical nest-like microstructure of nanoplates. The nanoplates of the doped samples were less than those of the un-doped one. Upon being doped with Sm, the specific surface area of Bi<sub>2</sub>WO<sub>6</sub> was increased with more active sites for photocatalytic reaction. The Sm dopant also favors the visible light harvest and enhances the photocatalytic performance of the doped product. The hierarchical nest-like 2% Sm-doped Bi<sub>2</sub>WO<sub>6</sub> microstructure has the best photocatalytic activity for the degradation of RhB of 98.08% within 180 min. In this research, h<sup>+</sup> and <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11504_2025_6263_Article_IEq1.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="32" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{ \bullet }{\text{O}}_{2}^{ - }\)</EquationSource> <!--PhysChA2570161Salaeh-m1--> </InlineEquation> were the main active species used for the degradation of RhB and the photocatalytic mechanism of Sm-doped Bi<sub>2</sub>WO<sub>6</sub> was proposed.</p>

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Synthesis and Characterization of Hierarchical Nest-Like Sm-Doped Bi2WO6 Microstructure Used As a Visible-Light-Driven Photocatalyst

  • 期刊论文

  • 发表日期：

    2025年9月16日

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  • Amarin Salaeh,
  • Anukorn Phuruangrat,
  • Asanee Somdee,
  • Titipun Thongtem,
  • Somchai Thongtem

摘要

Abstract

The hierarchical nest-like Sm-doped Bi2WO6 samples were successfully synthesized by a simple hydrothermal method at 180°C for 20 h. They were used as a visible-light-driven photocatalyst for rhodamine B (RhB) degradation. XRD patterns of Bi2WO6 doped with different weight contents of Sm were similar with that of the pure orthorhombic Bi2WO6 phase. The electron microscopic analyses show that the products were uniform hierarchical nest-like microstructure of nanoplates. The nanoplates of the doped samples were less than those of the un-doped one. Upon being doped with Sm, the specific surface area of Bi2WO6 was increased with more active sites for photocatalytic reaction. The Sm dopant also favors the visible light harvest and enhances the photocatalytic performance of the doped product. The hierarchical nest-like 2% Sm-doped Bi2WO6 microstructure has the best photocatalytic activity for the degradation of RhB of 98.08% within 180 min. In this research, h+ and \({}^{ \bullet }{\text{O}}_{2}^{ - }\) were the main active species used for the degradation of RhB and the photocatalytic mechanism of Sm-doped Bi2WO6 was proposed.