Sarah Udenyi Onogwu , Jimoh Oladejo Tijani , Saheed Mustapha , Ambali Saka Abdulkareem , ElijahYanda Shaba , Augustine Innalegwu Daniel , Alechine Emmanuel Ameh , Francis Ntumba Muya , Oluwaseun Oyekola
{"title":"一锅水热法合成的氯和钙共掺氧化钨(VI)纳米线的光催化、抗氧化和电化学行为","authors":"Sarah Udenyi Onogwu , Jimoh Oladejo Tijani , Saheed Mustapha , Ambali Saka Abdulkareem , ElijahYanda Shaba , Augustine Innalegwu Daniel , Alechine Emmanuel Ameh , Francis Ntumba Muya , Oluwaseun Oyekola","doi":"10.1016/j.nanoso.2024.101211","DOIUrl":null,"url":null,"abstract":"<div><p>Photocatalytic, antioxidant, and electrochemical properties of one-pot hydrothermal synthesized chlorine and calcium co-doped WO<sub>3</sub> nanowires (Cl-Ca@WO<sub>3</sub>) were studied. The prepared WO<sub>3</sub>-based nanowires were characterized using various analytical techniques. The UV–visible and Photoluminescence analysis showed that the band gap energy decreased from 2.49 eV for WO<sub>3</sub> to 1.80 eV for WO<sub>3</sub> nanowires that were co-doped with 4 % chlorine and 1 % calcium (4:1).Higher Scanning and Transmission Electron Microscopic analysis, showed that Cl-Ca@WO<sub>3</sub>nanowires shapes changed and that they formed long and short bundles of nanowires based on the Cl-Ca mixing ratio. X-ray diffraction (XRD) analysis revealed a monoclinic phase even after the doping with Cl and Ca. The textural analysis showed an increase in surface area (4.216 m<sup>2</sup>g<sup>−1</sup> to 16.031 m<sup>2</sup>g<sup>−1</sup>). The photoreaction method removed 31.94 % of the brilliant green dye by WO<sub>3</sub> nanowires and 88 percent using Cl-Ca@WO<sub>3</sub> at 240 min.The order of abundance of metals in the dyeing wastewater is Cu(1.76 ppm)> Cr (1.66 ppm)> Pb(1.26 ppm)> Ni (1.15 ppm) and the order of removal by each nanocatalyst at maximum time of 120 is as follows; WO<sub>3</sub>: Cr> Ni> Cu> Pb, Cl-Ca@WO<sub>3</sub> (1:2): Cu > Cr > Ni > Pb, Cl-Ca@WO<sub>3</sub> (4:1): Cr > Cu > Ni > Pb.The pseudo-second-order model best described pollutant uptake and that Cl-Ca@WO3 was reusable after the fifth cycle. The antioxidant activity assayed using 2,2-diphenyl-1-picrylhydrazyl (DPPH) revealed that Cl-Ca-WO<sub>3</sub> performed better with IC<sub>50</sub> value of 70.95 at 100 µg/mL. The electrochemical tests discovered that Cl-Ca-WO<sub>3</sub> nanowires have better kinetic performance and higher spontaneous energy than WO<sub>3</sub> nanowires.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.4500,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photocatalytic, antioxidant, and electrochemical behavior of one-pot hydrothermal synthesized chlorine and calcium co-doped tungsten(VI) oxide nanowires\",\"authors\":\"Sarah Udenyi Onogwu , Jimoh Oladejo Tijani , Saheed Mustapha , Ambali Saka Abdulkareem , ElijahYanda Shaba , Augustine Innalegwu Daniel , Alechine Emmanuel Ameh , Francis Ntumba Muya , Oluwaseun Oyekola\",\"doi\":\"10.1016/j.nanoso.2024.101211\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Photocatalytic, antioxidant, and electrochemical properties of one-pot hydrothermal synthesized chlorine and calcium co-doped WO<sub>3</sub> nanowires (Cl-Ca@WO<sub>3</sub>) were studied. The prepared WO<sub>3</sub>-based nanowires were characterized using various analytical techniques. The UV–visible and Photoluminescence analysis showed that the band gap energy decreased from 2.49 eV for WO<sub>3</sub> to 1.80 eV for WO<sub>3</sub> nanowires that were co-doped with 4 % chlorine and 1 % calcium (4:1).Higher Scanning and Transmission Electron Microscopic analysis, showed that Cl-Ca@WO<sub>3</sub>nanowires shapes changed and that they formed long and short bundles of nanowires based on the Cl-Ca mixing ratio. X-ray diffraction (XRD) analysis revealed a monoclinic phase even after the doping with Cl and Ca. The textural analysis showed an increase in surface area (4.216 m<sup>2</sup>g<sup>−1</sup> to 16.031 m<sup>2</sup>g<sup>−1</sup>). The photoreaction method removed 31.94 % of the brilliant green dye by WO<sub>3</sub> nanowires and 88 percent using Cl-Ca@WO<sub>3</sub> at 240 min.The order of abundance of metals in the dyeing wastewater is Cu(1.76 ppm)> Cr (1.66 ppm)> Pb(1.26 ppm)> Ni (1.15 ppm) and the order of removal by each nanocatalyst at maximum time of 120 is as follows; WO<sub>3</sub>: Cr> Ni> Cu> Pb, Cl-Ca@WO<sub>3</sub> (1:2): Cu > Cr > Ni > Pb, Cl-Ca@WO<sub>3</sub> (4:1): Cr > Cu > Ni > Pb.The pseudo-second-order model best described pollutant uptake and that Cl-Ca@WO3 was reusable after the fifth cycle. The antioxidant activity assayed using 2,2-diphenyl-1-picrylhydrazyl (DPPH) revealed that Cl-Ca-WO<sub>3</sub> performed better with IC<sub>50</sub> value of 70.95 at 100 µg/mL. The electrochemical tests discovered that Cl-Ca-WO<sub>3</sub> nanowires have better kinetic performance and higher spontaneous energy than WO<sub>3</sub> nanowires.</p></div>\",\"PeriodicalId\":397,\"journal\":{\"name\":\"Nano-Structures & Nano-Objects\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.4500,\"publicationDate\":\"2024-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano-Structures & Nano-Objects\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2352507X24001227\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Physics and Astronomy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano-Structures & Nano-Objects","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352507X24001227","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}
Photocatalytic, antioxidant, and electrochemical behavior of one-pot hydrothermal synthesized chlorine and calcium co-doped tungsten(VI) oxide nanowires
Photocatalytic, antioxidant, and electrochemical properties of one-pot hydrothermal synthesized chlorine and calcium co-doped WO3 nanowires (Cl-Ca@WO3) were studied. The prepared WO3-based nanowires were characterized using various analytical techniques. The UV–visible and Photoluminescence analysis showed that the band gap energy decreased from 2.49 eV for WO3 to 1.80 eV for WO3 nanowires that were co-doped with 4 % chlorine and 1 % calcium (4:1).Higher Scanning and Transmission Electron Microscopic analysis, showed that Cl-Ca@WO3nanowires shapes changed and that they formed long and short bundles of nanowires based on the Cl-Ca mixing ratio. X-ray diffraction (XRD) analysis revealed a monoclinic phase even after the doping with Cl and Ca. The textural analysis showed an increase in surface area (4.216 m2g−1 to 16.031 m2g−1). The photoreaction method removed 31.94 % of the brilliant green dye by WO3 nanowires and 88 percent using Cl-Ca@WO3 at 240 min.The order of abundance of metals in the dyeing wastewater is Cu(1.76 ppm)> Cr (1.66 ppm)> Pb(1.26 ppm)> Ni (1.15 ppm) and the order of removal by each nanocatalyst at maximum time of 120 is as follows; WO3: Cr> Ni> Cu> Pb, Cl-Ca@WO3 (1:2): Cu > Cr > Ni > Pb, Cl-Ca@WO3 (4:1): Cr > Cu > Ni > Pb.The pseudo-second-order model best described pollutant uptake and that Cl-Ca@WO3 was reusable after the fifth cycle. The antioxidant activity assayed using 2,2-diphenyl-1-picrylhydrazyl (DPPH) revealed that Cl-Ca-WO3 performed better with IC50 value of 70.95 at 100 µg/mL. The electrochemical tests discovered that Cl-Ca-WO3 nanowires have better kinetic performance and higher spontaneous energy than WO3 nanowires.
期刊介绍:
Nano-Structures & Nano-Objects is a new journal devoted to all aspects of the synthesis and the properties of this new flourishing domain. The journal is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. The journal is focused on the objects rather than on their applications. However, the research for new applications of original nano-structures & nano-objects in various fields such as nano-electronics, energy conversion, catalysis, drug delivery and nano-medicine is also welcome. The scope of Nano-Structures & Nano-Objects involves: -Metal and alloy nanoparticles with complex nanostructures such as shape control, core-shell and dumbells -Oxide nanoparticles and nanostructures, with complex oxide/metal, oxide/surface and oxide /organic interfaces -Inorganic semi-conducting nanoparticles (quantum dots) with an emphasis on new phases, structures, shapes and complexity -Nanostructures involving molecular inorganic species such as nanoparticles of coordination compounds, molecular magnets, spin transition nanoparticles etc. or organic nano-objects, in particular for molecular electronics -Nanostructured materials such as nano-MOFs and nano-zeolites -Hetero-junctions between molecules and nano-objects, between different nano-objects & nanostructures or between nano-objects & nanostructures and surfaces -Methods of characterization specific of the nano size or adapted for the nano size such as X-ray and neutron scattering, light scattering, NMR, Raman, Plasmonics, near field microscopies, various TEM and SEM techniques, magnetic studies, etc .