{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T15:31:14Z","timestamp":1783524674100,"version":"3.55.0"},"reference-count":57,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,3,19]],"date-time":"2023-03-19T00:00:00Z","timestamp":1679184000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Key Research and Development Projects of Sichuan Province, China","award":["2021YFN0018"],"award-info":[{"award-number":["2021YFN0018"]}]},{"name":"Key Research and Development Projects of Sichuan Province, China","award":["2022YFD1901403"],"award-info":[{"award-number":["2022YFD1901403"]}]},{"name":"National Key Research and Development Program of China","award":["2021YFN0018"],"award-info":[{"award-number":["2021YFN0018"]}]},{"name":"National Key Research and Development Program of China","award":["2022YFD1901403"],"award-info":[{"award-number":["2022YFD1901403"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Iron-based catalysts with high load content of iron sulfide (FeS) were commonly peroxymonosulfate (PMS) and hydrogen peroxide (H2O2) activators to degrade organic pollutants but limited catalytic efficiency and increased risk of ferrous ion leaching restricted their use. Meanwhile, various biomass materials such as straw, peel, and branch have been extensively prepared into biochar for mechanical support for iron-based catalysts; however, the preparation process of biochar was energy-intensive. In this study, FeS nanoparticles modified rape straw composites (RS\u2013FeS) encapsulated with ethylenediaminetetraacetic acid (RS\u2013EDTA\u2013FeS) were successfully presented by in-situ synthesis method for efficiently activating PMS and H2O2 to degrade oxytetracycline (OTC), which was economical and environmentally friendly. The results showed that the modified rape straw can remove OTC efficiently, and the addition of EDTA also significantly enhanced the stability and the reusability of the catalyst. In addition, EDTA also promoted the activation of H2O2 at neutral pH. The OTC degradation efficiency of the two catalysts by PMS was faster than that of H2O2, but H2O2 had a stronger ability to remove OTC than PMS. The highest OTC removal efficiency of RS\u2013FeS and RS\u2013EDTA\u2013FeS were 87.51 and 81.15%. O2\u2022\u2013 and 1O2 were the major reactive oxidative species (ROS) in the PMS system. Furthermore, compared with RS\u2013FeS, the addition of EDTA inhabited the generation of O2\u2022\u2013 in the PMS system. Instead, O2\u2022\u2013 and \u2022OH were the major ROS in the H2O2 system, but 1O2 was also identified in RS\u2013FeS\/H2O2 system. RS\u2013EDTA\u2013FeS showed a trend of rising first and then decreasing in recycle test. Instead, the removal rate of OTC by RS\u2013FeS decreased significantly with the increase in reuse times. In the actual wastewater test, the TOC removal of two catalysts active by H2O2 was better than PMS, which was consistent with the test results of OTC, indicating that the two catalysts have application value in the removal of organic pollutants in actual wastewater. This study directly used plant materials as catalysts and omits the preparation process of biochar, greatly reduces the preparation cost and secondary pollution of catalysts, and provides theoretical support for the deepening of advanced oxidation technology.<\/jats:p>","DOI":"10.3390\/molecules28062771","type":"journal-article","created":{"date-parts":[[2023,3,20]],"date-time":"2023-03-20T03:30:31Z","timestamp":1679283031000},"page":"2771","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Rape Straw Supported FeS Nanoparticles with Encapsulated Structure as Peroxymonosulfate and Hydrogen Peroxide Activators for Enhanced Oxytetracycline Degradation"],"prefix":"10.3390","volume":"28","author":[{"given":"Guiyin","family":"Wang","sequence":"first","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoxun","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shirong","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhanbiao","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6211-3017","authenticated-orcid":false,"given":"Zhang","family":"Cheng","sequence":"additional","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junren","family":"Xian","sequence":"additional","affiliation":[{"name":"College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ting","family":"Li","sequence":"additional","affiliation":[{"name":"College of Resources, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yulin","family":"Pu","sequence":"additional","affiliation":[{"name":"College of Resources, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Resources, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gang","family":"Xiang","sequence":"additional","affiliation":[{"name":"College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8258-5860","authenticated-orcid":false,"given":"Zhien","family":"Pu","sequence":"additional","affiliation":[{"name":"College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1016\/j.jhazmat.2015.10.037","article-title":"Behavior of antibiotics and antibiotic resistance genes in eco-agricultural system: A case study","volume":"304","author":"Cheng","year":"2016","journal-title":"J. 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