Scholarlink

<p>In this research, photocatalytic ceramic foams were synthesized using biomass, specifically biogenic silica extracted from rice husks, and copper-decorated titanium dioxide nanoparticles (Cu–TiO<sub>2</sub> NPs). The fabrication method employed, direct foaming with CO<sub>2</sub>, stands out for its efficiency and sustainability. The foams were characterized and evaluated in the degradation of acetaminophen (ACP), an emerging pollutant of pharmaceutical origin. Ceramic foams were prepared from undecorated TiO<sub>2</sub> NPs decorated with 1% copper. The TiO<sub>2</sub> NPs and the ceramic foams were characterized by X-ray diffraction, identifying the anatase phase of TiO<sub>2</sub> and the amorphous nature of the biogenic silica. The foams were evaluated under artificial solar irradiation, achieving 86.5% degradation at a loading of 1.5&#xa0;g/L after 83&#xa0;min of exposure to 200&#xa0;kJ/m<sup>2</sup> radiation. These results suggest that ceramic foams have great potential in terms of efficiency, effectiveness, and scalability for photocatalytic degradation processes of emerging pollutants.</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

Synthesis and characterization of photocatalytic ceramic foams for the degradation of acetaminophen

  • 期刊论文

  • 发表日期：

    2025年3月21日

查看全文
  • Yhosmary Franco,
  • Manuel Alejandro Ávila-López,
  • Ana Arizmendi-Morquecho,
  • Jimmy Castillo,
  • Juan Carlos Pereira

摘要

In this research, photocatalytic ceramic foams were synthesized using biomass, specifically biogenic silica extracted from rice husks, and copper-decorated titanium dioxide nanoparticles (Cu–TiO2 NPs). The fabrication method employed, direct foaming with CO2, stands out for its efficiency and sustainability. The foams were characterized and evaluated in the degradation of acetaminophen (ACP), an emerging pollutant of pharmaceutical origin. Ceramic foams were prepared from undecorated TiO2 NPs decorated with 1% copper. The TiO2 NPs and the ceramic foams were characterized by X-ray diffraction, identifying the anatase phase of TiO2 and the amorphous nature of the biogenic silica. The foams were evaluated under artificial solar irradiation, achieving 86.5% degradation at a loading of 1.5 g/L after 83 min of exposure to 200 kJ/m2 radiation. These results suggest that ceramic foams have great potential in terms of efficiency, effectiveness, and scalability for photocatalytic degradation processes of emerging pollutants.

Graphical abstract