The modified biochar of Acidithiobacillus ferrooxidans effectively promotes the peroxonosulfate degradation of ibuprofen in the presence of light: Singlet oxygen constitutes the principal active oxygen species

文献类型： 外文期刊

第一作者： Wei, Man

作者： Wei, Man;Qu, Shenbao;Wang, Ruyi;Hu, Xia;Zhou, Jiti;Yang, Aijiang;Song, Shiying;Song, Shiying;Hu, Xia;Zhou, Jiti;Yang, Aijiang;Hu, Xia;Zhou, Jiti;Yang, Aijiang;Zhou, Jiti

作者机构：

关键词： Biosynthesized jarosite; Biochar; Singlet oxygen; Peroxymonosulfate; Ibuprofen

期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.2； 五年影响因子：7.6 ）

ISSN： 2213-2929

年卷期： 2025 年 13 卷 5 期

页码：

收录情况： SCI

摘要： Naturally occurring iron-bearing minerals can enhance the adsorption and catalytic activity of biochar (BC) and are considered an economical and environmentally friendly source of iron-based materials. The narrow bandgap of biosynthesized jarosite (Jar) can improve the light-responsive capability of BC, making it potentially applicable in the photocatalytic degradation of pollutants. In this study, biochar was introduced as an additive during the biomineralization process of Acidithiobacillus ferrooxidans, successfully synthesizing a series of composite materials with biosynthesized Jar loaded onto BC (BC@Jar). A BC@Jar/Light/peroxymonosulfate (PMS) catalytic system was constructed to degrade ibuprofen (IBP). This system leverages the synergistic advantages of BC and Jar, and demonstrates excellent catalytic degradation performance and strong anti-interference capability. Moreover, the system exhibits versatility under different light sources and is applicable for degrading other pharmaceuticals and personal care products (PPCPs). Through quenching experiments and electron paramagnetic resonance (EPR) analysis, singlet oxygen was identified as the primary reactive oxygen species. Combined with liquid chromatography-mass spectrometry (LC-MS) detection of several intermediate products and density functional theory (DFT) calculations, a possible degradation pathway for IBP was proposed. Furthermore, toxicity assessments indicate a substantial reduction in the toxicity of intermediates generated during IBP degradation. Overall, the BC@Jar/Light/PMS system has great potential for treating PPCPs wastewater.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序