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<p>Ag<sub>2</sub>CO<sub>3</sub>/Ag/Ag<sub>2</sub>S microrods (MRs) were successfully synthesized by in-situ anion exchange route between Ag<sub>2</sub>CO<sub>3</sub>/Ag MRs and Na<sub>2</sub>S aqueous solution. The morphology, microstructure, optical property and photocatalytic activity of the as-prepared photocatalysts were measured and analyzed. The results show that the as-synthesized Ag<sub>2</sub>CO<sub>3</sub>/Ag/Ag<sub>2</sub>S MRs displayed larger specific surface area than that of Ag<sub>2</sub>CO<sub>3</sub>/Ag MRs. Moreover, the Ag<sub>2</sub>CO<sub>3</sub>/Ag/Ag<sub>2</sub>S MRs showed wide absorption in the visible light region and superior photocurrent density in the photocurrent response under simulated sunlight radiation. Ag<sub>2</sub>CO<sub>3</sub>/Ag/Ag<sub>2</sub>S MRs with reaction time was 7&#xa0;h by anion exchange process exhibited the highest photocatalytic activity among all photocatalysts. The relevant photocatalytic reaction mechanism of Ag<sub>2</sub>CO<sub>3</sub>/Ag/Ag<sub>2</sub>S MRs was proposed. In addition, the Ag<sub>2</sub>CO<sub>3</sub>/Ag/Ag<sub>2</sub>S MRs displayed good stability and recoverability.</p>

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Synthesis of Ag2CO3/Ag/Ag2S microrods for enhanced photocatalytic activity

  • 期刊论文

  • 发表日期：

    2025年7月21日

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  • Xiuyan Li,
  • Shanshan Wu,
  • Shiwen Geng,
  • Zilei Cai,
  • Jiahao Lu,
  • Bijiang Cui,
  • Lan Yang

摘要

Ag2CO3/Ag/Ag2S microrods (MRs) were successfully synthesized by in-situ anion exchange route between Ag2CO3/Ag MRs and Na2S aqueous solution. The morphology, microstructure, optical property and photocatalytic activity of the as-prepared photocatalysts were measured and analyzed. The results show that the as-synthesized Ag2CO3/Ag/Ag2S MRs displayed larger specific surface area than that of Ag2CO3/Ag MRs. Moreover, the Ag2CO3/Ag/Ag2S MRs showed wide absorption in the visible light region and superior photocurrent density in the photocurrent response under simulated sunlight radiation. Ag2CO3/Ag/Ag2S MRs with reaction time was 7 h by anion exchange process exhibited the highest photocatalytic activity among all photocatalysts. The relevant photocatalytic reaction mechanism of Ag2CO3/Ag/Ag2S MRs was proposed. In addition, the Ag2CO3/Ag/Ag2S MRs displayed good stability and recoverability.