Articles written in Bulletin of Materials Science

    • Effect of pH on formation of Ti-O-based photocatalysts prepared by green chemistry and their photocatalytic activities


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      In this study, the effect of water extract of wood ash (WEWA) as a reagent from waste was studied on the formation of Ti-O-based photocatalysts. The pH of the reaction solution was controlled by varying the volume of WEWA. In an acidic condition, the products were identified as TiO$_2$, but the K$_2$Ti$_6$O$_{13}$/TiO$_2$ was formed when pH of the solution was ${\ge}$6. Photocatalytic activities of calcined products were investigated through the degradation of methylene blue (MB,cationic dye) and reactive orange (RO, anionic dye) solutions. The TiO$_2$ prepared from acid condition degraded MB and RO under blacklight irradiation but not under visible-light irradiation, while the K$_2$Ti$_6$O$_{13}$/TiO$_2$ degraded MB undervisible-light irradiation through a dye-sensitized photocatalytic mechanism but could not degrade RO. Addition of MB into RO solution improved the photocatalytic degradation of RO by K$_2$Ti$_6$O$_{13}$/TiO$_2$ because MB could be adsorbed on thesurface of K$_2$Ti$_6$O$_{13}$/TiO$_2$ and promoted the MB-sensitized photocatalytic process.

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    • 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
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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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