用于光催化硝基苯分解的 Bi/Zn 浸渍商用 TiO2 纳米粒子的性能评估

IF 2.8 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal of chemical technology and biotechnology Pub Date : 2024-05-17 DOI:10.1002/jctb.7666
Saurav Mishra, Nandana Chakinala, Anand G. Chakinala, Praveen K. Surolia
{"title":"用于光催化硝基苯分解的 Bi/Zn 浸渍商用 TiO2 纳米粒子的性能评估","authors":"Saurav Mishra,&nbsp;Nandana Chakinala,&nbsp;Anand G. Chakinala,&nbsp;Praveen K. Surolia","doi":"10.1002/jctb.7666","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> BACKGROUND</h3>\n \n <p>Commercial TiO<sub>2</sub> nanoparticles were subjected to modification through Bi and Zn metal doping. The resulting catalysts were comprehensively characterized, and their performance was then reviewed for removal of model pollutant nitrobenzene in water.</p>\n </section>\n \n <section>\n \n <h3> RESULTS</h3>\n \n <p>Amidst the synthesized catalysts, the co-doping of Bi/Zn (0.25:0.75 wt%) demonstrated the best photocatalytic degradation activity, achieving 95% degradation within 90 min of reaction time, with 2.99 × 10<sup>−2</sup> min<sup>−1</sup> rate constant value. The involvement of different radicals during the degradation process was elucidated by employing appropriate radical scavengers. Furthermore, the degradation results were investigated applying the first-order kinetic model, leading to the determination of reaction rate constants and initial rates of the degradation process.</p>\n </section>\n \n <section>\n \n <h3> CONCLUSION</h3>\n \n <p>An improved photocatalytic activity was observed with metal doping due to the synergistic effect of doped metals with commercial TiO<sub>2</sub> and profound charge transfer among them. It was observed that performance was increased with temperature rise in the practical range of application, that is, 5–20 °C. This behavior was due to high rate of movement of charge carriers. Further, involvement and functioning of various radical species such as h<sup>+</sup>, OH<sup>−</sup> and O<sub>2</sub><sup>−</sup> in nitrobenzene degradation were successfully established using appropriate radical scavengers. © 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":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance evaluation of Bi/Zn-impregnated commercial TiO2 nanoparticles for photocatalytic nitrobenzene decomposition\",\"authors\":\"Saurav Mishra,&nbsp;Nandana Chakinala,&nbsp;Anand G. Chakinala,&nbsp;Praveen K. Surolia\",\"doi\":\"10.1002/jctb.7666\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> BACKGROUND</h3>\\n \\n <p>Commercial TiO<sub>2</sub> nanoparticles were subjected to modification through Bi and Zn metal doping. The resulting catalysts were comprehensively characterized, and their performance was then reviewed for removal of model pollutant nitrobenzene in water.</p>\\n </section>\\n \\n <section>\\n \\n <h3> RESULTS</h3>\\n \\n <p>Amidst the synthesized catalysts, the co-doping of Bi/Zn (0.25:0.75 wt%) demonstrated the best photocatalytic degradation activity, achieving 95% degradation within 90 min of reaction time, with 2.99 × 10<sup>−2</sup> min<sup>−1</sup> rate constant value. The involvement of different radicals during the degradation process was elucidated by employing appropriate radical scavengers. Furthermore, the degradation results were investigated applying the first-order kinetic model, leading to the determination of reaction rate constants and initial rates of the degradation process.</p>\\n </section>\\n \\n <section>\\n \\n <h3> CONCLUSION</h3>\\n \\n <p>An improved photocatalytic activity was observed with metal doping due to the synergistic effect of doped metals with commercial TiO<sub>2</sub> and profound charge transfer among them. It was observed that performance was increased with temperature rise in the practical range of application, that is, 5–20 °C. This behavior was due to high rate of movement of charge carriers. Further, involvement and functioning of various radical species such as h<sup>+</sup>, OH<sup>−</sup> and O<sub>2</sub><sup>−</sup> in nitrobenzene degradation were successfully established using appropriate radical scavengers. © 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\":\"2024-05-17\",\"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.7666\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of chemical technology and biotechnology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jctb.7666","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

摘要

通过掺杂 Bi 和 Zn 金属,对商用 TiO2 纳米颗粒进行了改性。在合成的催化剂中,Bi/Zn(0.25:0.75 wt%)共掺杂的催化剂表现出最佳的光催化降解活性,在 90 分钟的反应时间内达到 95% 的降解率,速率常数为 2.99 × 10-2 min-1。通过使用适当的自由基清除剂,阐明了降解过程中不同自由基的参与情况。此外,还采用一阶动力学模型对降解结果进行了研究,从而确定了降解过程的反应速率常数和初始速率。由于掺杂金属与商用 TiO2 的协同作用以及它们之间的电荷转移,观察到掺杂金属提高了光催化活性。据观察,在实际应用范围(即 5-20 °C)内,光催化性能随温度升高而提高。这种行为是由于电荷载流子的高速运动所致。此外,利用适当的自由基清除剂,成功地确定了各种自由基(如 h+、OH- 和 O2-)在硝基苯降解过程中的参与和作用。© 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。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Performance evaluation of Bi/Zn-impregnated commercial TiO2 nanoparticles for photocatalytic nitrobenzene decomposition

BACKGROUND

Commercial TiO2 nanoparticles were subjected to modification through Bi and Zn metal doping. The resulting catalysts were comprehensively characterized, and their performance was then reviewed for removal of model pollutant nitrobenzene in water.

RESULTS

Amidst the synthesized catalysts, the co-doping of Bi/Zn (0.25:0.75 wt%) demonstrated the best photocatalytic degradation activity, achieving 95% degradation within 90 min of reaction time, with 2.99 × 10−2 min−1 rate constant value. The involvement of different radicals during the degradation process was elucidated by employing appropriate radical scavengers. Furthermore, the degradation results were investigated applying the first-order kinetic model, leading to the determination of reaction rate constants and initial rates of the degradation process.

CONCLUSION

An improved photocatalytic activity was observed with metal doping due to the synergistic effect of doped metals with commercial TiO2 and profound charge transfer among them. It was observed that performance was increased with temperature rise in the practical range of application, that is, 5–20 °C. This behavior was due to high rate of movement of charge carriers. Further, involvement and functioning of various radical species such as h+, OH and O2 in nitrobenzene degradation were successfully established using appropriate radical scavengers. © 2024 Society of Chemical Industry (SCI).

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
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.
期刊最新文献
Issue Information Adsorption behavior of graphite‐like walnut shell biochar modified with ammonia for ciprofloxacin in aqueous solution Eco‐friendly approaches for synthesis of indolyl 1H‐pyrroles using rice‐husk‐derived carbonaceous sulfonation as the green catalyst Impact of neutrophil‐activating protein conservation on diagnostic tests and vaccine design Issue Information
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1