Effect of Sr-Doping on the Photocatalytic Performance of LaNiO3−σ
In this study, to investigate how oxygen vacancy impacts the photocatalytic performance of LaNiO3, undoped and Sr-doped LaNiO3−σ nanoparticles are successfully prepared by the sol-gel method. The X-ray diffractometer (XRD) results show both two samples belong to the R-3c space group of the rhombohed...
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| Veröffentlicht in: | Catalysts 2022-11, Vol.12 (11), p.1434 |
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| creator | Zhang, Yuhao Guo, Liang Xu, Qunang Zhang, Qingmao Li, Jiaming Ma, Qiongxiong |
| description | In this study, to investigate how oxygen vacancy impacts the photocatalytic performance of LaNiO3, undoped and Sr-doped LaNiO3−σ nanoparticles are successfully prepared by the sol-gel method. The X-ray diffractometer (XRD) results show both two samples belong to the R-3c space group of the rhombohedral system. According to the conservation of valence and the X-ray photoelectron spectroscopy (XPS) results, it is demonstrated that Sr-doping can introduce more oxygen vacancy into LaNiO3−σ. According to photocatalytic experiments of the degradation of methyl orange (MO) solution, La0.875Sr0.125NiO3−σ shows higher photocatalytic performance than undoped LaNiO3−σ. First-principle calculation results show that the introduction of oxygen vacancy and Sr-doping can lead to the narrowing of the band gap width of LaNiO3. |
| doi_str_mv | 10.3390/catal12111434 |
| format | Article |
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The X-ray diffractometer (XRD) results show both two samples belong to the R-3c space group of the rhombohedral system. According to the conservation of valence and the X-ray photoelectron spectroscopy (XPS) results, it is demonstrated that Sr-doping can introduce more oxygen vacancy into LaNiO3−σ. According to photocatalytic experiments of the degradation of methyl orange (MO) solution, La0.875Sr0.125NiO3−σ shows higher photocatalytic performance than undoped LaNiO3−σ. First-principle calculation results show that the introduction of oxygen vacancy and Sr-doping can lead to the narrowing of the band gap width of LaNiO3.</description><identifier>ISSN: 2073-4344</identifier><identifier>EISSN: 2073-4344</identifier><identifier>DOI: 10.3390/catal12111434</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Catalysts ; Chemical reactions ; Doping ; Dyes ; First principles ; Lanthanum oxides ; Nanoparticles ; Oxidation ; Oxygen ; Photocatalysis ; Photodegradation ; Photoelectrons ; Physical properties ; Pollutants ; Semiconductors ; Sol-gel processes ; X ray photoelectron spectroscopy</subject><ispartof>Catalysts, 2022-11, Vol.12 (11), p.1434</ispartof><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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The X-ray diffractometer (XRD) results show both two samples belong to the R-3c space group of the rhombohedral system. According to the conservation of valence and the X-ray photoelectron spectroscopy (XPS) results, it is demonstrated that Sr-doping can introduce more oxygen vacancy into LaNiO3−σ. According to photocatalytic experiments of the degradation of methyl orange (MO) solution, La0.875Sr0.125NiO3−σ shows higher photocatalytic performance than undoped LaNiO3−σ. First-principle calculation results show that the introduction of oxygen vacancy and Sr-doping can lead to the narrowing of the band gap width of LaNiO3.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal12111434</doi><orcidid>https://orcid.org/0000-0002-7953-7024</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Catalysts Chemical reactions Doping Dyes First principles Lanthanum oxides Nanoparticles Oxidation Oxygen Photocatalysis Photodegradation Photoelectrons Physical properties Pollutants Semiconductors Sol-gel processes X ray photoelectron spectroscopy |
| title | Effect of Sr-Doping on the Photocatalytic Performance of LaNiO3−σ |
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