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<p>CdO nanoparticles were fabricated using [Cd(toua)]<sup>.</sup>H<sub>2</sub>O (<b>1</b>) and [Cd(Htoua)(NO<sub>3</sub>)(H<sub>2</sub>O)]<sub>n</sub> (<b>2</b>) (where toua = 3,6,9-trioxaundecanedioate and Htoua = 3,6,9-trioxaundecaneoic acid) as templates via calcination and were characterized using various techniques. The average particle sizes of CdO were found to be 27.77 and 28.96&#xa0;nm. SEM analysis revealed a morphological transformation from agglomerated nanoparticles (CdO_<b>2</b>) to nano-spikes (CdO_<b>1</b>). These nanoparticles showed selective adsorption towards cationic dye over an anionic dye. The %degradation of Methylene Blue (MB) by CdO_<b>1</b> was found to be 50.5% while it is 39.4% by CdO_<b>2</b> in just 4&#xa0;h. The scavenger analysis reveals that OH⋅is responsible for the photocatalytic degradation of MB.</p> Graphical abstract <p></p>

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Counter anion directed diversification in CdO nanostructures for selective degradation of methylene blue

  • 期刊论文

  • 发表日期：

    2026年4月27日

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  • Sakshi,
  • Janak,
  • Sadhika Khullar

摘要

CdO nanoparticles were fabricated using [Cd(toua)].H2O (1) and [Cd(Htoua)(NO3)(H2O)]n (2) (where toua = 3,6,9-trioxaundecanedioate and Htoua = 3,6,9-trioxaundecaneoic acid) as templates via calcination and were characterized using various techniques. The average particle sizes of CdO were found to be 27.77 and 28.96 nm. SEM analysis revealed a morphological transformation from agglomerated nanoparticles (CdO_2) to nano-spikes (CdO_1). These nanoparticles showed selective adsorption towards cationic dye over an anionic dye. The %degradation of Methylene Blue (MB) by CdO_1 was found to be 50.5% while it is 39.4% by CdO_2 in just 4 h. The scavenger analysis reveals that OH⋅is responsible for the photocatalytic degradation of MB.

Graphical abstract