Scholarlink

<p>This study presents an eco-friendly method to synthesize silver nanoparticles (AgNPs) utilizing the leaf extract of <i>Cynometra ramiflora</i> as a bio-reducing agent. A distinct 431&#xa0;nm surface plasmon resonance signal confirmed the formation of AgNPs. SEM images portrayed uniformly distributed spherical nanoparticles with smooth surfaces. EDX analysis showed a prominent peak at 3&#xa0;keV, confirming elemental silver. TEM analysis indicated that most AgNPs were 10–25&#xa0;nm in size, with a mean size of 18.84&#xa0;nm. XRD confirmed the face-centered cubic nature of the AgNPs. The d-spacing for the (111) plane was found to be 0.2287&#xa0;nm, in agreement with standard reference values. FTIR analysis demonstrated signals at 3301, 1637, and 843&#xa0;cm<sup>−1</sup>, indicating the engagement of functional moieties in reducing and capping the AgNPs. The synthesized AgNPs had a high zeta potential (− 18.2&#xa0;mV), revealing good stability. The AgNPs demonstrated excellent catalytic potential in the presence of NaBH<sub>4</sub>, degrading approximately 95% of methyl orange dye within 15&#xa0;min, following a pseudo-first-order kinetic model with a kinetic constant of 0.186&#xa0;min<sup>−1</sup>.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sustainable synthesis of silver nanoparticles using Cynometra ramiflora leaf extract for methyl orange degradation

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年6月18日

查看全文
  • Raja Selvaraj,
  • Stuthi A. Shetty,
  • Gokulakrishnan Murugesan,
  • Thivaharan Varadavenkatesan,
  • Ramesh Vinayagam

摘要

This study presents an eco-friendly method to synthesize silver nanoparticles (AgNPs) utilizing the leaf extract of Cynometra ramiflora as a bio-reducing agent. A distinct 431 nm surface plasmon resonance signal confirmed the formation of AgNPs. SEM images portrayed uniformly distributed spherical nanoparticles with smooth surfaces. EDX analysis showed a prominent peak at 3 keV, confirming elemental silver. TEM analysis indicated that most AgNPs were 10–25 nm in size, with a mean size of 18.84 nm. XRD confirmed the face-centered cubic nature of the AgNPs. The d-spacing for the (111) plane was found to be 0.2287 nm, in agreement with standard reference values. FTIR analysis demonstrated signals at 3301, 1637, and 843 cm−1, indicating the engagement of functional moieties in reducing and capping the AgNPs. The synthesized AgNPs had a high zeta potential (− 18.2 mV), revealing good stability. The AgNPs demonstrated excellent catalytic potential in the presence of NaBH4, degrading approximately 95% of methyl orange dye within 15 min, following a pseudo-first-order kinetic model with a kinetic constant of 0.186 min−1.