Ali Babri Shal, Morteza Kashefi AlAsl and Shahrzad Khoramnejadian
{"title":"利用 MnFe2O4@zeolite 活性炭磁性纳米复合材料吸附去除水溶液中的硝酸盐:等温线和动力学研究","authors":"Ali Babri Shal, Morteza Kashefi AlAsl and Shahrzad Khoramnejadian","doi":"10.1039/D3NJ05875A","DOIUrl":null,"url":null,"abstract":"<p >Nitrate elimination from groundwater and surface water has received growing attention in recent years, as its gradual accumulation severely endangers freshwater reserves around the world. To this end, a new and effective zeolite-activated carbon supported MnFe<small><sub>2</sub></small>O<small><sub>4</sub></small> magnetic nanocomposite was synthesized and used as a nanoadsorbent for nitrate removal from water for the first time in this research. Subsequently, several analytical techniques, including field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD), were applied to identify the MnFe<small><sub>2</sub></small>O<small><sub>4</sub></small>@zeolite-activated carbon magnetic nanocomposite. To attain the maximum removal efficiency of nitrate, several key parameters were optimized, such as dosage of adsorbent, contact time, initial concentration, and solution pH. Kinetic studies and adsorption equilibrium analysis indicated that the pseudo-second-order model is well matched with the experimental kinetics data, while the Freundlich isotherm model provides a better representation of the nitrate adsorption process. The outcomes displayed that the MnFe<small><sub>2</sub></small>O<small><sub>4</sub></small>@zeolite-activated carbon magnetic nanocomposite is a promising nanoadsorbent for the elimination of nitrate from water.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Adsorptive removal of nitrate from aqueous solution using a MnFe2O4@zeolite-activated carbon magnetic nanocomposite: isotherm and kinetics studies\",\"authors\":\"Ali Babri Shal, Morteza Kashefi AlAsl and Shahrzad Khoramnejadian\",\"doi\":\"10.1039/D3NJ05875A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Nitrate elimination from groundwater and surface water has received growing attention in recent years, as its gradual accumulation severely endangers freshwater reserves around the world. To this end, a new and effective zeolite-activated carbon supported MnFe<small><sub>2</sub></small>O<small><sub>4</sub></small> magnetic nanocomposite was synthesized and used as a nanoadsorbent for nitrate removal from water for the first time in this research. Subsequently, several analytical techniques, including field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD), were applied to identify the MnFe<small><sub>2</sub></small>O<small><sub>4</sub></small>@zeolite-activated carbon magnetic nanocomposite. To attain the maximum removal efficiency of nitrate, several key parameters were optimized, such as dosage of adsorbent, contact time, initial concentration, and solution pH. Kinetic studies and adsorption equilibrium analysis indicated that the pseudo-second-order model is well matched with the experimental kinetics data, while the Freundlich isotherm model provides a better representation of the nitrate adsorption process. The outcomes displayed that the MnFe<small><sub>2</sub></small>O<small><sub>4</sub></small>@zeolite-activated carbon magnetic nanocomposite is a promising nanoadsorbent for the elimination of nitrate from water.</p>\",\"PeriodicalId\":95,\"journal\":{\"name\":\"New Journal of Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-07-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Journal of Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/nj/d3nj05875a\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/nj/d3nj05875a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Adsorptive removal of nitrate from aqueous solution using a MnFe2O4@zeolite-activated carbon magnetic nanocomposite: isotherm and kinetics studies
Nitrate elimination from groundwater and surface water has received growing attention in recent years, as its gradual accumulation severely endangers freshwater reserves around the world. To this end, a new and effective zeolite-activated carbon supported MnFe2O4 magnetic nanocomposite was synthesized and used as a nanoadsorbent for nitrate removal from water for the first time in this research. Subsequently, several analytical techniques, including field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD), were applied to identify the MnFe2O4@zeolite-activated carbon magnetic nanocomposite. To attain the maximum removal efficiency of nitrate, several key parameters were optimized, such as dosage of adsorbent, contact time, initial concentration, and solution pH. Kinetic studies and adsorption equilibrium analysis indicated that the pseudo-second-order model is well matched with the experimental kinetics data, while the Freundlich isotherm model provides a better representation of the nitrate adsorption process. The outcomes displayed that the MnFe2O4@zeolite-activated carbon magnetic nanocomposite is a promising nanoadsorbent for the elimination of nitrate from water.