磁性增强介孔硅酸盐作为一种高效吸附剂从水溶液中去除苯氧酸除草剂

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-01-16 DOI:10.1680/jenes.23.00096

Al-Hussein Imad Attwan Al-Mahfuz, A. Ghaemi

{"title":"磁性增强介孔硅酸盐作为一种高效吸附剂从水溶液中去除苯氧酸除草剂","authors":"Al-Hussein Imad Attwan Al-Mahfuz, A. Ghaemi","doi":"10.1680/jenes.23.00096","DOIUrl":null,"url":null,"abstract":"Superparamagnetic Fe3O4-MCM-41 was successfully synthesized using direct hydrothermal route and was utilized as an excellent adsorbent for the removal of 2,4-dichlorophenoxyacetic acid herbicide from aqueous solution. The superparamagnetic mesoporous adsorbent was fully characterized using XRD, FE-SEM, EDS, N2 sorption, and VSM. Synthesized adsorbent exhibited a high specific surface area of 444 m2.g−1, making it a suitable candidate for adsorption purposes where it provides higher adsorption capacity. Based on the VSM study, the recorded saturated magnetization was 15.9 emu.g−1 which confirms the viability of the adsorbent to be easily separable from an aqueous media by a magnet. The ability of Fe3O4-MCM-41 as an adsorbent of 2,4-dichlorophenoxyacetic acid herbicide from water was tested considering various parameters such as pH, adsorbent dosage, contact time, and pollutant concentration. The effectiveness of Fe3O4-MCM-41 in removing the herbicide reached its highest peak at pH = 5, 0.05 g adsorbent, 60 min contact time, and 10 mg/L 2,4-dichlorophenoxyacetic acid. The maximum removal efficiency at the optimum condition was 94.8%. Based on the experimental data and kinetic studies, adsorption process followed the pseudo-second ordered kinetic and Langmuir isotherm.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":" 14","pages":""},"PeriodicalIF":16.4000,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Magnetically enhanced mesoporous silicate as an efficient adsorbent for the removal of phenoxy acid herbicide from aqueous solutions\",\"authors\":\"Al-Hussein Imad Attwan Al-Mahfuz, A. Ghaemi\",\"doi\":\"10.1680/jenes.23.00096\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Superparamagnetic Fe3O4-MCM-41 was successfully synthesized using direct hydrothermal route and was utilized as an excellent adsorbent for the removal of 2,4-dichlorophenoxyacetic acid herbicide from aqueous solution. The superparamagnetic mesoporous adsorbent was fully characterized using XRD, FE-SEM, EDS, N2 sorption, and VSM. Synthesized adsorbent exhibited a high specific surface area of 444 m2.g−1, making it a suitable candidate for adsorption purposes where it provides higher adsorption capacity. Based on the VSM study, the recorded saturated magnetization was 15.9 emu.g−1 which confirms the viability of the adsorbent to be easily separable from an aqueous media by a magnet. The ability of Fe3O4-MCM-41 as an adsorbent of 2,4-dichlorophenoxyacetic acid herbicide from water was tested considering various parameters such as pH, adsorbent dosage, contact time, and pollutant concentration. The effectiveness of Fe3O4-MCM-41 in removing the herbicide reached its highest peak at pH = 5, 0.05 g adsorbent, 60 min contact time, and 10 mg/L 2,4-dichlorophenoxyacetic acid. The maximum removal efficiency at the optimum condition was 94.8%. Based on the experimental data and kinetic studies, adsorption process followed the pseudo-second ordered kinetic and Langmuir isotherm.\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":\" 14\",\"pages\":\"\"},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-01-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1680/jenes.23.00096\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1680/jenes.23.00096","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

采用直接水热法成功合成了超顺磁性 Fe3O4-MCM-41，并将其用作去除水溶液中 2,4-二氯苯氧乙酸除草剂的优良吸附剂。利用 XRD、FE-SEM、EDS、N2 吸附和 VSM 对超顺磁介孔吸附剂进行了全面表征。合成的吸附剂比表面积高达 444 m2.g-1，因此适合用于具有较高吸附能力的吸附用途。根据 VSM 研究，记录到的饱和磁化率为 15.9 emu.g-1，这证实了该吸附剂可以通过磁铁轻松地从水介质中分离出来。考虑到 pH 值、吸附剂用量、接触时间和污染物浓度等各种参数，测试了 Fe3O4-MCM-41 作为吸附剂从水中吸附 2,4-二氯苯氧乙酸除草剂的能力。在 pH = 5、吸附剂用量为 0.05 克、接触时间为 60 分钟、2,4-二氯苯氧乙酸浓度为 10 毫克/升时，Fe3O4-MCM-41 清除除草剂的效果达到最高峰。最佳条件下的最大去除率为 94.8%。根据实验数据和动力学研究，吸附过程遵循假二阶动力学和朗缪尔等温线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Magnetically enhanced mesoporous silicate as an efficient adsorbent for the removal of phenoxy acid herbicide from aqueous solutions

Superparamagnetic Fe3O4-MCM-41 was successfully synthesized using direct hydrothermal route and was utilized as an excellent adsorbent for the removal of 2,4-dichlorophenoxyacetic acid herbicide from aqueous solution. The superparamagnetic mesoporous adsorbent was fully characterized using XRD, FE-SEM, EDS, N2 sorption, and VSM. Synthesized adsorbent exhibited a high specific surface area of 444 m2.g−1, making it a suitable candidate for adsorption purposes where it provides higher adsorption capacity. Based on the VSM study, the recorded saturated magnetization was 15.9 emu.g−1 which confirms the viability of the adsorbent to be easily separable from an aqueous media by a magnet. The ability of Fe3O4-MCM-41 as an adsorbent of 2,4-dichlorophenoxyacetic acid herbicide from water was tested considering various parameters such as pH, adsorbent dosage, contact time, and pollutant concentration. The effectiveness of Fe3O4-MCM-41 in removing the herbicide reached its highest peak at pH = 5, 0.05 g adsorbent, 60 min contact time, and 10 mg/L 2,4-dichlorophenoxyacetic acid. The maximum removal efficiency at the optimum condition was 94.8%. Based on the experimental data and kinetic studies, adsorption process followed the pseudo-second ordered kinetic and Langmuir isotherm.

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.