Articles written in Bulletin of Materials Science

    • Z-scheme heterojunction Ag/AgBr/Bi$_2$MoO$_6$ with improved visible-light-induced photocatalytic activity


      More Details Abstract Fulltext PDF

      A hierarchical Ag/AgBr/Bi$_2$MoO$_6$ heterojunction composite was prepared without the addition of any structure-directing agent via a hydrothermal synthesis combined with subsequent deposition-photoreduction. The obtained samples were characterized by X-ray diffraction, field-emission scanning electron microscopy containing an energy X-ray dispersive spectrometer, X-ray photoelectron spectroscopy, UV–visible diffuse reflectance spectroscopy and photoluminescence spectroscopy. The results demonstrate that the Ag/AgBr/Bi$_2$MoO$_6$ composite exhibited enhanced photocatalytic activity under visible-light irradiation for rhodamine B degradation with a rate constant of 0.180 min$^{–1}$, which was approximately 2.5 times than that of Ag/AgBr and 22.5 times as high as Bi$_2$MoO$_6$. In addition, the superior visible light removing efficiencies of methylene blue and colourless phenol further confirmed the broad-spectrum photocatalytic degradation abilities of the Ag/AgBr/Bi$_2$MoO$_6$. Moreover, based on band structure analysis and active species trapping experiments, the improved photocatalytic performance of the Ag/AgBr/Bi$_2$MoO$_6$ photocatalyst was ascribed to the construction of Z-scheme bridge using Ag nanoparticles, which could increase the separation efficiency of photogenerated electron–hole pairs and keep them with high reduction and oxidation capability.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2022-2023 Indian Academy of Sciences, Bengaluru.