Scholarlink

<p>Photocatalysis is one of the potential applications for environmental cleanup with unique properties like thermal, optical, electrical and structural properties. A facile green synthesis method was employed to synthesize Bi<sub>2</sub>O<sub>3</sub> nanoparticles using <i>Costus igneus</i> leaf extract as a fuel for combustion synthesis. <i>Costus igneus</i> leaf extract was used as a natural source of reducing agent, capping, and stabilizing agents in this study which is successfully synthesize the bismuth oxide nanostructures. Green synthesis of Bi<sub>2</sub>O<sub>3</sub> nano particles are very effective due to its advantageous characteristics such as non-toxicity, environmentally friendly synthesis, cost-effectiveness and the ability to achieve uniform particle formation. The calcinated product was characterized using spectroscopic techniques namely X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDXS). The synthesized Bi<sub>2</sub>O<sub>3</sub> nanomaterials were subjected for photocatalytic property using methylene blue as a model organic pollutant present in waste water. The superb photocatalytic activity of the nanoparticles has its unique features, i.e., large surface area, defective states structure, visible-light-triggered band, good electrical conductivity. These factors enhance the light-harvesting, charge-separation, electron-excitation and charge transport properties of the synthesized bismuth oxide NPs. The study revealed that Bi<sub>2</sub>O<sub>3</sub> nanoparticles showed 98% degradation efficiency within two hours of visible light irradiation. Furthermore, variations of pH and dye concentration parameters were performed to optimize the photodegradation efficiency of the as synthesized Bi<sub>2</sub>O<sub>3</sub> nanoparticles. All of these factors work together to make environmental friendly Bi<sub>2</sub>O<sub>3</sub> nanoparticles for wastewater treatment applications.</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

From green chemistry to clean water: Bi2O3 Nanoparticles as Photocatalyst

  • 期刊论文

  • 发表日期：

    2025年2月7日

查看全文
  • Lakshmi Ranganatha V,
  • Shivaganga G. S,
  • Pramila S,
  • Nagaraju G,
  • Parameswara P,
  • Abdel-Basit Al-Odayni,
  • Abdullah A. Al-Kahtani,
  • Mallikarjunaswamy C

摘要

Photocatalysis is one of the potential applications for environmental cleanup with unique properties like thermal, optical, electrical and structural properties. A facile green synthesis method was employed to synthesize Bi2O3 nanoparticles using Costus igneus leaf extract as a fuel for combustion synthesis. Costus igneus leaf extract was used as a natural source of reducing agent, capping, and stabilizing agents in this study which is successfully synthesize the bismuth oxide nanostructures. Green synthesis of Bi2O3 nano particles are very effective due to its advantageous characteristics such as non-toxicity, environmentally friendly synthesis, cost-effectiveness and the ability to achieve uniform particle formation. The calcinated product was characterized using spectroscopic techniques namely X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDXS). The synthesized Bi2O3 nanomaterials were subjected for photocatalytic property using methylene blue as a model organic pollutant present in waste water. The superb photocatalytic activity of the nanoparticles has its unique features, i.e., large surface area, defective states structure, visible-light-triggered band, good electrical conductivity. These factors enhance the light-harvesting, charge-separation, electron-excitation and charge transport properties of the synthesized bismuth oxide NPs. The study revealed that Bi2O3 nanoparticles showed 98% degradation efficiency within two hours of visible light irradiation. Furthermore, variations of pH and dye concentration parameters were performed to optimize the photodegradation efficiency of the as synthesized Bi2O3 nanoparticles. All of these factors work together to make environmental friendly Bi2O3 nanoparticles for wastewater treatment applications.