Scholarlink

<p>Zinc-based layered double hydroxide (Zn–Fe LDH) and its calcined mixed metal oxide (Zn–Fe MMO) were synthesized using a simple co-precipitation method. The materials were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and UV–visible diffuse reflectance spectroscopy (UV–vis DRS) to confirm their structural, morphological and optical properties. Both photocatalysts showed high efficiency in the visible-light degradation of crystal violet (CV) dye, achieving removal rates of ~ 95% for Zn–Fe LDH and 89% for Zn–Fe MMO under optimal conditions (10 mg catalyst, 10 mg L⁻<sup>1</sup> dye, neutral pH, room temperature). The photocatalytic mechanism, catalyst dosage effect, and kinetic behavior were systematically investigated. Additionally, both materials demonstrated effective antibacterial activity against Gram-positive and Gram-negative strains. These results highlight the potential of Zn–Fe LDH and Zn–Fe MMO for applications in environmental remediation and antibacterial treatments.</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

Efficient removal of crystal violet from wastewater using a Zn–Fe layered double hydroxide: photocatalysis and antibacterial insights

  • 期刊论文

  • 发表日期：

    2025年9月27日

查看全文
  • Bouthaina Doumi,
  • Zohra Draoua,
  • Farid Bennabi,
  • Brahim Djemoui,
  • Sofian Ammara,
  • Choukry Kamel Bendeddouche,
  • Mehdi Adjdir

摘要

Zinc-based layered double hydroxide (Zn–Fe LDH) and its calcined mixed metal oxide (Zn–Fe MMO) were synthesized using a simple co-precipitation method. The materials were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and UV–visible diffuse reflectance spectroscopy (UV–vis DRS) to confirm their structural, morphological and optical properties. Both photocatalysts showed high efficiency in the visible-light degradation of crystal violet (CV) dye, achieving removal rates of ~ 95% for Zn–Fe LDH and 89% for Zn–Fe MMO under optimal conditions (10 mg catalyst, 10 mg L⁻1 dye, neutral pH, room temperature). The photocatalytic mechanism, catalyst dosage effect, and kinetic behavior were systematically investigated. Additionally, both materials demonstrated effective antibacterial activity against Gram-positive and Gram-negative strains. These results highlight the potential of Zn–Fe LDH and Zn–Fe MMO for applications in environmental remediation and antibacterial treatments.