Persulfate activation enhanced by sulfur-doped cobaltous tetroxide for rapid and efficient degradation of atrazine

IF 2.8 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2024-07-12 DOI:10.1002/jctb.7710

Shanjun Liu, Shan Sun, Yahui Xu, Jianlin Zhang

{"title":"Persulfate activation enhanced by sulfur-doped cobaltous tetroxide for rapid and efficient degradation of atrazine","authors":"Shanjun Liu, Shan Sun, Yahui Xu, Jianlin Zhang","doi":"10.1002/jctb.7710","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> BACKGROUND</h3>\n \n <p>Atrazine is present in aquatic systems as a pesticide, and poses a serious threat to ecosystems and human health. The advanced oxidation technology based on persulfate is considered a promising approach for removing trace pesticides from water. The synthesis of a persulfate activator for the rapid and efficient degradation of atrazine was studied.</p>\n </section>\n \n <section>\n \n <h3> RESULTS</h3>\n \n <p>A novel rod-like sulfur-doped Co<sub>3</sub>O<sub>4</sub> (S-Co<sub>3</sub>O<sub>4</sub>) was prepared <i>via</i> the hard template method and used as a persulfate activator to degrade atrazine. The removal efficiency of atrazine (10 mM) could be up to 100% in the presence of peroxymonosulfate (1 mM) activated by S-Co<sub>3</sub>O<sub>4</sub> (50 mg L<sup>−1</sup>) within 7 min.</p>\n </section>\n \n <section>\n \n <h3> CONCLUSION</h3>\n \n <p>The nanorod structure of S-Co<sub>3</sub>O<sub>4</sub> is conducive to mass transfer and increases the probability of reaction between substances, and sulfur doping increases the interfacial charge transfer capability. The mechanism of atrazine degradation was mainly attributed to the combined effects of •OH and SO<sub>4</sub><sup>•−</sup>, with the effect of SO<sub>4</sub><sup>•−</sup> being more important. The main degradation pathways of atrazine are dichlorination, hydroxylation and dealkylation, corresponding to the cleavage of Cl1-C9, N5-C10 and N6-C11, respectively. © 2024 Society of Chemical Industry (SCI).</p>\n </section>\n </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of chemical technology and biotechnology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jctb.7710","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

BACKGROUND

Atrazine is present in aquatic systems as a pesticide, and poses a serious threat to ecosystems and human health. The advanced oxidation technology based on persulfate is considered a promising approach for removing trace pesticides from water. The synthesis of a persulfate activator for the rapid and efficient degradation of atrazine was studied.

RESULTS

A novel rod-like sulfur-doped Co₃O₄ (S-Co₃O₄) was prepared via the hard template method and used as a persulfate activator to degrade atrazine. The removal efficiency of atrazine (10 mM) could be up to 100% in the presence of peroxymonosulfate (1 mM) activated by S-Co₃O₄ (50 mg L⁻¹) within 7 min.

CONCLUSION

The nanorod structure of S-Co₃O₄ is conducive to mass transfer and increases the probability of reaction between substances, and sulfur doping increases the interfacial charge transfer capability. The mechanism of atrazine degradation was mainly attributed to the combined effects of •OH and SO₄^•−, with the effect of SO₄^•− being more important. The main degradation pathways of atrazine are dichlorination, hydroxylation and dealkylation, corresponding to the cleavage of Cl1-C9, N5-C10 and N6-C11, respectively. © 2024 Society of Chemical Industry (SCI).

查看原文本刊更多论文

利用掺硫四氧化三钴增强过硫酸盐活化，快速高效降解阿特拉津

背景：水生系统中存在的一种杀虫剂---特拉嗪，对生态系统和人类健康构成严重威胁。基于过硫酸盐的高级氧化技术被认为是去除水中痕量农药的一种可行方法。结果通过硬模板法制备了一种新型棒状掺硫 Co3O4（S-Co3O4），并将其用作过硫酸盐活化剂来降解阿特拉津。结论 S-Co3O4 的纳米棒状结构有利于传质，增加了物质间反应的几率，掺硫增加了界面电荷转移能力。阿特拉津的降解机理主要归因于-OH和SO4--的共同作用，其中SO4--的作用更为重要。阿特拉津的主要降解途径是二氯化、羟基化和脱烷基化，分别对应于 Cl1-C9、N5-C10 和 N6-C11 的裂解。© 2024 化学工业学会（SCI）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of chemical technology and biotechnology 工程技术-工程：化工

CiteScore

7.00

自引率

5.90%

发文量

268

审稿时长

1.7 months

期刊介绍： Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.