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<p>In the context of escalating global environmental concerns, the pursuit of highly efficient photocatalysts has emerged as a prominent research focus. In this study, PBA-derived CoS₂/FeS was anchored to b-CNTs through hydrothermal and calcination techniques to serve as a Photo-Fenton-like catalyst. The CoS<sub>2</sub>/FeS/b-CNTs exhibited remarkable photocatalytic Fenton activity. Under xenon lamp irradiation, an impressive degradation efficiency of 97% for RhB was achieved within a mere 210&#xa0;s, concomitantly exhibiting extensive adaptability across a wide pH range of pollutant solutions. Even after three consecutive cycles and magnetic recovery separation procedures, the degradation efficiency of RhB still remains at a high degradation efficiency of 94.6%. Free radical capture experiments unambiguously indicated that singlet oxygen (<sup>1</sup>O<sub>2</sub>) and hydroxyl radicals (•OH) played pivotal roles as the principal active species during the degradation process. This research not only pioneers a novel avenue for the design of PBA-derived layered nanostructured photocatalysts but also holds significant potential for future applications in Photo-Fenton-like degradation of recalcitrant organic pollutants, heralding a new era in environmental remediation technology.</p>

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PBA-derived magnetic CoS2/FeS anchored on CNTs as a robust and recyclable fenton-like catalyst for enhanced RhB degradation

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • Jiahong Zheng,
  • Binyu Wang,
  • Xin Zheng

摘要

In the context of escalating global environmental concerns, the pursuit of highly efficient photocatalysts has emerged as a prominent research focus. In this study, PBA-derived CoS₂/FeS was anchored to b-CNTs through hydrothermal and calcination techniques to serve as a Photo-Fenton-like catalyst. The CoS2/FeS/b-CNTs exhibited remarkable photocatalytic Fenton activity. Under xenon lamp irradiation, an impressive degradation efficiency of 97% for RhB was achieved within a mere 210 s, concomitantly exhibiting extensive adaptability across a wide pH range of pollutant solutions. Even after three consecutive cycles and magnetic recovery separation procedures, the degradation efficiency of RhB still remains at a high degradation efficiency of 94.6%. Free radical capture experiments unambiguously indicated that singlet oxygen (1O2) and hydroxyl radicals (•OH) played pivotal roles as the principal active species during the degradation process. This research not only pioneers a novel avenue for the design of PBA-derived layered nanostructured photocatalysts but also holds significant potential for future applications in Photo-Fenton-like degradation of recalcitrant organic pollutants, heralding a new era in environmental remediation technology.