Ou Wenjie, Waqas Ahmed, Fu Xiuxian, Wang Lu, Li Jiannan, Yang Jie, Rana Muhammad Ammar Asghar, Mohsin Mahmood, Juha M Alatalo, Muhammad Imtiaz, Weidong Li, Sajid Mehmood
{"title":"由羽状萍合成的ZnO纳米颗粒对水中铬的吸附势。","authors":"Ou Wenjie, Waqas Ahmed, Fu Xiuxian, Wang Lu, Li Jiannan, Yang Jie, Rana Muhammad Ammar Asghar, Mohsin Mahmood, Juha M Alatalo, Muhammad Imtiaz, Weidong Li, Sajid Mehmood","doi":"10.1155/2022/6209013","DOIUrl":null,"url":null,"abstract":"<p><p>Aqueous solutions containing toxic elements (TEs) (such as hexavalent chromium (Cr (VI)) can be toxic to humans even at trace levels. Thus, removing TEs from the aqueous environment is essential for the protection of biodiversity, hydrosphere ecosystems, and humans. For plant fabrication of zinc oxide nanoparticles (PF-ZnONPs), <i>Azolla pinnata</i> plants were used, and X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), SEM, and FTIR techniques were used for the identification of PF-ZnONPs and ZnONPs, which were used to remove Cr (VI) from aqueous solution. A number of adsorption parameters were studied, including pH, dose, concentration of metal ions, and contact time. The removal efficiency of PF-ZnONPs for Cr (VI) has been found to be 96% at a time (60 min), 69.02% at pH 4, and 70.43% at a dose (10 mg·L<sup>-1</sup>). It was found that the pseudo-second-order model best described the adsorption of Cr (VI) onto PF-ZnONPs, indicating a fast initial adsorption via diffusion. The experimental data were also highly consistent with the Langmuir isotherm model calculations.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9578909/pdf/","citationCount":"2","resultStr":"{\"title\":\"The Adsorption Potential of Cr from Water by ZnO Nanoparticles Synthesized by <i>Azolla pinnata</i>.\",\"authors\":\"Ou Wenjie, Waqas Ahmed, Fu Xiuxian, Wang Lu, Li Jiannan, Yang Jie, Rana Muhammad Ammar Asghar, Mohsin Mahmood, Juha M Alatalo, Muhammad Imtiaz, Weidong Li, Sajid Mehmood\",\"doi\":\"10.1155/2022/6209013\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Aqueous solutions containing toxic elements (TEs) (such as hexavalent chromium (Cr (VI)) can be toxic to humans even at trace levels. Thus, removing TEs from the aqueous environment is essential for the protection of biodiversity, hydrosphere ecosystems, and humans. For plant fabrication of zinc oxide nanoparticles (PF-ZnONPs), <i>Azolla pinnata</i> plants were used, and X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), SEM, and FTIR techniques were used for the identification of PF-ZnONPs and ZnONPs, which were used to remove Cr (VI) from aqueous solution. A number of adsorption parameters were studied, including pH, dose, concentration of metal ions, and contact time. The removal efficiency of PF-ZnONPs for Cr (VI) has been found to be 96% at a time (60 min), 69.02% at pH 4, and 70.43% at a dose (10 mg·L<sup>-1</sup>). It was found that the pseudo-second-order model best described the adsorption of Cr (VI) onto PF-ZnONPs, indicating a fast initial adsorption via diffusion. The experimental data were also highly consistent with the Langmuir isotherm model calculations.</p>\",\"PeriodicalId\":8914,\"journal\":{\"name\":\"Bioinorganic Chemistry and Applications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2022-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9578909/pdf/\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bioinorganic Chemistry and Applications\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1155/2022/6209013\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q1\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioinorganic Chemistry and Applications","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1155/2022/6209013","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/1/1 0:00:00","PubModel":"eCollection","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
The Adsorption Potential of Cr from Water by ZnO Nanoparticles Synthesized by Azolla pinnata.
Aqueous solutions containing toxic elements (TEs) (such as hexavalent chromium (Cr (VI)) can be toxic to humans even at trace levels. Thus, removing TEs from the aqueous environment is essential for the protection of biodiversity, hydrosphere ecosystems, and humans. For plant fabrication of zinc oxide nanoparticles (PF-ZnONPs), Azolla pinnata plants were used, and X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), SEM, and FTIR techniques were used for the identification of PF-ZnONPs and ZnONPs, which were used to remove Cr (VI) from aqueous solution. A number of adsorption parameters were studied, including pH, dose, concentration of metal ions, and contact time. The removal efficiency of PF-ZnONPs for Cr (VI) has been found to be 96% at a time (60 min), 69.02% at pH 4, and 70.43% at a dose (10 mg·L-1). It was found that the pseudo-second-order model best described the adsorption of Cr (VI) onto PF-ZnONPs, indicating a fast initial adsorption via diffusion. The experimental data were also highly consistent with the Langmuir isotherm model calculations.
期刊介绍:
Bioinorganic Chemistry and Applications is primarily devoted to original research papers, but also publishes review articles, editorials, and letter to the editor in the general field of bioinorganic chemistry and its applications. Its scope includes all aspects of bioinorganic chemistry, including bioorganometallic chemistry and applied bioinorganic chemistry. The journal welcomes papers relating to metalloenzymes and model compounds, metal-based drugs, biomaterials, biocatalysis and bioelectronics, metals in biology and medicine, metals toxicology and metals in the environment, metal interactions with biomolecules and spectroscopic applications.