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FeMoS2 micoroparticles as an excellent catalyst for the activation of peroxymonosulfate toward organic contaminant degradation.

ABSTRACT: The FeMoS2 catalyst for activating peroxymonosulfate (PMS) is a promising pathway for removing organic pollutants in wastewater, however, the dominant FeS2 phases and sulfur (S) vacancies in it are little involved. Herein, for the first time, novel bimetallic FeMoS2 microparticles were synthesized by a simple method and then applied for PMS activation for degrading organic pollutants. The catalysts were characterized by several techniques, including X-ray diffraction and X-ray photoelectron spectroscopies. The results revealed that new FeMoS2 microparticles containing S vacancies in the main FeS2 phases were obtained. FeS2 and S vacancies were found to play important roles for activating PMS by radical and nonradical pathways. More Fe2+ and Mo4+ were formed in the presence of S vacancies, which offered a new strategy for exploring novel heterogeneous catalysts in the activation of PMS for environmental remediation.

SUBMITTER: Luo CW 

PROVIDER: S-EPMC10020838 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature

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FeMoS<sub>2</sub> micoroparticles as an excellent catalyst for the activation of peroxymonosulfate toward organic contaminant degradation.

Luo Cai-Wu CW   Cai Lei L   Xie Chao C   Wu Jing J   Jiang Tian-Jiao TJ  

RSC advances 20230317 13

The FeMoS<sub>2</sub> catalyst for activating peroxymonosulfate (PMS) is a promising pathway for removing organic pollutants in wastewater, however, the dominant FeS<sub>2</sub> phases and sulfur (S) vacancies in it are little involved. Herein, for the first time, novel bimetallic FeMoS<sub>2</sub> microparticles were synthesized by a simple method and then applied for PMS activation for degrading organic pollutants. The catalysts were characterized by several techniques, including X-ray diffrac  ...[more]

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