N/ s掺杂生物炭负载Bi和FeS激活过硫酸盐驱动的10o2高效降解氧氟沙星

IF 9.7 1区 化学 Q1 ACOUSTICS
Guoqiang Zhang , Yuhan He , Wenyi Huang , Zhenfang Xiao , Ziran Xue , Hao Cheng , Jun Feng , Yao Lu , Quan Liu , Lijun Li
{"title":"N/ s掺杂生物炭负载Bi和FeS激活过硫酸盐驱动的10o2高效降解氧氟沙星","authors":"Guoqiang Zhang ,&nbsp;Yuhan He ,&nbsp;Wenyi Huang ,&nbsp;Zhenfang Xiao ,&nbsp;Ziran Xue ,&nbsp;Hao Cheng ,&nbsp;Jun Feng ,&nbsp;Yao Lu ,&nbsp;Quan Liu ,&nbsp;Lijun Li","doi":"10.1016/j.ultsonch.2025.107585","DOIUrl":null,"url":null,"abstract":"<div><div>Biochar-loaded Fe-based bimetals have been shown to be an effective catalyst for the activation of peroxodisulfates. However, reports on heteroatom-doped biochar-loaded Bi and FeS bimetals are scarce, and their properties and mechanisms remain unclear. In this study, NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub> catalysts were constructed using reductive hydrothermal and calcination methods. The results showed that the reductive hydrothermal process made Bi and FeS tightly bound, thereby promoting the stability of the catalyst. Under the optimal conditions, the NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub> system could completely degrade ofloxacin (OFX) within 20 min. Moreover, the NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub> system had excellent stability and regeneration capabilities, and was able to efficiently degrade a wide range of organic pollutants. A series of mechanistic studies and density-functional theory(DFT) calculations confirmed the existence of multiple synergistic mechanisms in the activation of PDS by the catalyst, in which N doping favors the generation of <sup>1</sup>O<sub>2</sub> and S serves to promote the rapid transfer of the metal electrons; while, the introduction of Bi and FeS enhances the adsorption capacity of the catalyst for PDS, and the presence of Bi promotes the Fe<sup>3+</sup>/Fe<sup>2+</sup> cycle, which guarantees the continuation of the Fenton-like reaction. In summary, this study elucidated multiple reaction mechanisms in the visible light/NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub>/PDS system, which provides new design ideas for the development of heteroatom-doped biochar loaded with metals and metal sulfides for wastewater treatment.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"122 ","pages":"Article 107585"},"PeriodicalIF":9.7000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"N/S-doped biochar-loaded Bi and FeS activated persulfate-driven 1O2 efficient degradation of ofloxacin\",\"authors\":\"Guoqiang Zhang ,&nbsp;Yuhan He ,&nbsp;Wenyi Huang ,&nbsp;Zhenfang Xiao ,&nbsp;Ziran Xue ,&nbsp;Hao Cheng ,&nbsp;Jun Feng ,&nbsp;Yao Lu ,&nbsp;Quan Liu ,&nbsp;Lijun Li\",\"doi\":\"10.1016/j.ultsonch.2025.107585\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Biochar-loaded Fe-based bimetals have been shown to be an effective catalyst for the activation of peroxodisulfates. However, reports on heteroatom-doped biochar-loaded Bi and FeS bimetals are scarce, and their properties and mechanisms remain unclear. In this study, NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub> catalysts were constructed using reductive hydrothermal and calcination methods. The results showed that the reductive hydrothermal process made Bi and FeS tightly bound, thereby promoting the stability of the catalyst. Under the optimal conditions, the NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub> system could completely degrade ofloxacin (OFX) within 20 min. Moreover, the NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub> system had excellent stability and regeneration capabilities, and was able to efficiently degrade a wide range of organic pollutants. A series of mechanistic studies and density-functional theory(DFT) calculations confirmed the existence of multiple synergistic mechanisms in the activation of PDS by the catalyst, in which N doping favors the generation of <sup>1</sup>O<sub>2</sub> and S serves to promote the rapid transfer of the metal electrons; while, the introduction of Bi and FeS enhances the adsorption capacity of the catalyst for PDS, and the presence of Bi promotes the Fe<sup>3+</sup>/Fe<sup>2+</sup> cycle, which guarantees the continuation of the Fenton-like reaction. In summary, this study elucidated multiple reaction mechanisms in the visible light/NS<sub>4</sub>-Bi<sub>1</sub>FeS<sub>0.75</sub>/PDS system, which provides new design ideas for the development of heteroatom-doped biochar loaded with metals and metal sulfides for wastewater treatment.</div></div>\",\"PeriodicalId\":442,\"journal\":{\"name\":\"Ultrasonics Sonochemistry\",\"volume\":\"122 \",\"pages\":\"Article 107585\"},\"PeriodicalIF\":9.7000,\"publicationDate\":\"2025-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ultrasonics Sonochemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1350417725003645\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ACOUSTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ultrasonics Sonochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350417725003645","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0

摘要

生物炭负载的铁基双金属已被证明是一种有效的过氧化物二硫酸盐活化催化剂。然而,关于杂原子掺杂生物炭负载Bi和FeS双金属的报道很少,其性质和机制尚不清楚。本研究采用还原水热法和煅烧法制备了NS4-Bi1FeS0.75催化剂。结果表明,水热还原过程使Bi与FeS紧密结合,促进了催化剂的稳定性。在最佳条件下,NS4-Bi1FeS0.75体系能在20 min内完全降解氧氟沙星(OFX)。此外,NS4-Bi1FeS0.75体系具有优异的稳定性和再生能力,能够有效降解多种有机污染物。一系列机理研究和密度泛函理论(DFT)计算证实了催化剂在PDS活化过程中存在多种协同机制,其中N掺杂有利于1O2的生成,S有利于金属电子的快速转移;Bi和FeS的引入增强了催化剂对PDS的吸附能力,Bi的存在促进了Fe3+/Fe2+的循环,保证了类fenton反应的继续进行。综上所述,本研究阐明了在可见光/NS4-Bi1FeS0.75/PDS体系下的多种反应机理,为开发负载金属及金属硫化物的杂原子掺杂生物炭处理废水提供了新的设计思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

N/S-doped biochar-loaded Bi and FeS activated persulfate-driven 1O2 efficient degradation of ofloxacin

N/S-doped biochar-loaded Bi and FeS activated persulfate-driven 1O2 efficient degradation of ofloxacin
Biochar-loaded Fe-based bimetals have been shown to be an effective catalyst for the activation of peroxodisulfates. However, reports on heteroatom-doped biochar-loaded Bi and FeS bimetals are scarce, and their properties and mechanisms remain unclear. In this study, NS4-Bi1FeS0.75 catalysts were constructed using reductive hydrothermal and calcination methods. The results showed that the reductive hydrothermal process made Bi and FeS tightly bound, thereby promoting the stability of the catalyst. Under the optimal conditions, the NS4-Bi1FeS0.75 system could completely degrade ofloxacin (OFX) within 20 min. Moreover, the NS4-Bi1FeS0.75 system had excellent stability and regeneration capabilities, and was able to efficiently degrade a wide range of organic pollutants. A series of mechanistic studies and density-functional theory(DFT) calculations confirmed the existence of multiple synergistic mechanisms in the activation of PDS by the catalyst, in which N doping favors the generation of 1O2 and S serves to promote the rapid transfer of the metal electrons; while, the introduction of Bi and FeS enhances the adsorption capacity of the catalyst for PDS, and the presence of Bi promotes the Fe3+/Fe2+ cycle, which guarantees the continuation of the Fenton-like reaction. In summary, this study elucidated multiple reaction mechanisms in the visible light/NS4-Bi1FeS0.75/PDS system, which provides new design ideas for the development of heteroatom-doped biochar loaded with metals and metal sulfides for wastewater treatment.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Ultrasonics Sonochemistry
Ultrasonics Sonochemistry 化学-化学综合
CiteScore
15.80
自引率
11.90%
发文量
361
审稿时长
59 days
期刊介绍: Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels. Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信