Scholarlink

<p>Pharmaceutical pollutants like azithromycin and organic dyes pose significant environmental and health risks due to their persistence and toxicity. In this study, Z-scheme nanosized strontium hexaferrite (SrFe<sub>12</sub>O<sub>19</sub>)/carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) composites were synthesized via the sol-gel method using metal nitrates and direct heating with melamine to enhance visible-light-driven photocatalytic degradation. Strontium hexaferrite (SHF) and SHF/CN nanocomposites with varying g-C<sub>3</sub>N<sub>4</sub> content (10, 20, and 30 wt%) were successfully prepared and characterized. XRD confirmed the presence of M-type SrFe<sub>12</sub>O<sub>19</sub> and g-C<sub>3</sub>N<sub>4</sub>, while TEM/SEM analysis revealed nanosized particles (~ 10–20&#xa0;nm). UV-Vis DRS analysis indicated band gaps of 2.71&#xa0;eV (g-C<sub>3</sub>N<sub>4</sub>), 1.8&#xa0;eV (SHF), and 1.85–1.9&#xa0;eV for the composites. The nanocomposites exhibited strong ferromagnetic properties, enabling easy magnetic separation. Photocatalytic efficiency was evaluated using azithromycin and dyes (Congo red (CR) and Eriochrome black T (EBT), with SHF/CN-20 showing the highest degradation efficiency. The enhanced performance is attributed to the Z-scheme heterojunction, which improves charge separation and reactive species generation. These results highlight the potential of SHF/CN composites for effective wastewater treatment.</p> Graphical Abstract <p></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

Eco-Responsive Z-Scheme SrFe12O19/g-C3N4 Nanostructures for Visible-Light-Driven Antibiotic and Organic Pollutants Remediation

  • 期刊论文

  • 发表日期：

    2025年11月6日

查看全文
  • Priyambada Mahapatra,
  • Chirasmayee Mohanty,
  • Rita Das,
  • Nigamananda Das

摘要

Pharmaceutical pollutants like azithromycin and organic dyes pose significant environmental and health risks due to their persistence and toxicity. In this study, Z-scheme nanosized strontium hexaferrite (SrFe12O19)/carbon nitride (g-C3N4) composites were synthesized via the sol-gel method using metal nitrates and direct heating with melamine to enhance visible-light-driven photocatalytic degradation. Strontium hexaferrite (SHF) and SHF/CN nanocomposites with varying g-C3N4 content (10, 20, and 30 wt%) were successfully prepared and characterized. XRD confirmed the presence of M-type SrFe12O19 and g-C3N4, while TEM/SEM analysis revealed nanosized particles (~ 10–20 nm). UV-Vis DRS analysis indicated band gaps of 2.71 eV (g-C3N4), 1.8 eV (SHF), and 1.85–1.9 eV for the composites. The nanocomposites exhibited strong ferromagnetic properties, enabling easy magnetic separation. Photocatalytic efficiency was evaluated using azithromycin and dyes (Congo red (CR) and Eriochrome black T (EBT), with SHF/CN-20 showing the highest degradation efficiency. The enhanced performance is attributed to the Z-scheme heterojunction, which improves charge separation and reactive species generation. These results highlight the potential of SHF/CN composites for effective wastewater treatment.

Graphical Abstract