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<p>Interest in bioinspired nanoparticles has increased nowadays due to the simple process, cost-effectiveness, and wide range of applications. Here, <i>Antidesma acidum</i> methanol leaf extract was used in the preparation of Ag nanocatalyst. The polyphenol-mediated synthesized AgNPs were characterized by sophisticated instruments to confirm the formation, and further, they were employed in the removal of textile organic dyes from waste water. The degradation of three organic dyes—MO (methyl orange), RB (rhodamine blue), and MB (methylene blue)—was evaluated. Along with these three individual dyes, the degradation pattern of the dye mixture (MO + RB + MB) was also studied. Freshly produced AgNPs revealed effective and fast catalytic degradation of organic dyes. The evaluation of the dye degradation of individual dyes MO, RB, and MB showed 95% (14&#xa0;min), 91% (16&#xa0;min), and 96% (18&#xa0;min), respectively. Another dye mixture degradation also revealed 90% degradation within 18&#xa0;min. The degradation of these three individual dyes was investigated with various degradation intermediates such as 4-aminosalicylic acid and maleic acid using the GC–MS technique, and the resultant intermediates showed various non-toxic compounds as per USEPA, WHO, etc.</p>

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Polyphenol-induced silver nanocatalyst for identification of degradation intermediates with associated toxicity decline of organic textile dyes

  • 期刊论文

  • 发表日期：

    2026年1月13日

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  • Sunshri Basumatary,
  • Anamika Kalita Deka

摘要

Interest in bioinspired nanoparticles has increased nowadays due to the simple process, cost-effectiveness, and wide range of applications. Here, Antidesma acidum methanol leaf extract was used in the preparation of Ag nanocatalyst. The polyphenol-mediated synthesized AgNPs were characterized by sophisticated instruments to confirm the formation, and further, they were employed in the removal of textile organic dyes from waste water. The degradation of three organic dyes—MO (methyl orange), RB (rhodamine blue), and MB (methylene blue)—was evaluated. Along with these three individual dyes, the degradation pattern of the dye mixture (MO + RB + MB) was also studied. Freshly produced AgNPs revealed effective and fast catalytic degradation of organic dyes. The evaluation of the dye degradation of individual dyes MO, RB, and MB showed 95% (14 min), 91% (16 min), and 96% (18 min), respectively. Another dye mixture degradation also revealed 90% degradation within 18 min. The degradation of these three individual dyes was investigated with various degradation intermediates such as 4-aminosalicylic acid and maleic acid using the GC–MS technique, and the resultant intermediates showed various non-toxic compounds as per USEPA, WHO, etc.