Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles
A series of Mn–Co–Ni–O/LaMnO _3 composite materials were synthesized through the sol-gel method. The structure of these powders changed from the spinel to a spinel–perovskite mixed phase as the content of LaMnO _3 increased from 0 to 50%. Meanwhile, some grains of composite material were refined to...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab90bc |
| _version_ | 1827868730775830528 |
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| author | Chao Ma |
| author_facet | Chao Ma |
| author_sort | Chao Ma |
| collection | DOAJ |
| description | A series of Mn–Co–Ni–O/LaMnO _3 composite materials were synthesized through the sol-gel method. The structure of these powders changed from the spinel to a spinel–perovskite mixed phase as the content of LaMnO _3 increased from 0 to 50%. Meanwhile, some grains of composite material were refined to form many small particles and distributed among the porous microparticles. According to the absorption spectra of composite samples, the strong absorption structures appeared in visible ranges, especially between 400 and 730 nm. The photocatalytic degradation of tetracycline under the visible light irradiation indicated that the percentage of LaMnO _3 at 50% exhibited the highest degradation rate (70.2%) in 150 min. Its high photocatalytic activity was mainly due to the large surface area, strong visible light absorption and increased ratio of Mn ^3+ /Mn ^4+ ions. These new micro-structured photocatalysts were expected to show considerable potential applications in the water treatment. |
| first_indexed | 2024-03-12T15:35:34Z |
| format | Article |
| id | doaj.art-9fb4934cd55642468c4db5b293366123 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:35:34Z |
| publishDate | 2020-01-01 |
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| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-9fb4934cd55642468c4db5b2933661232023-08-09T16:13:39ZengIOP PublishingMaterials Research Express2053-15912020-01-017505501410.1088/2053-1591/ab90bcComposite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticlesChao Ma0https://orcid.org/0000-0003-2968-0436School of Electronic Engineering, School of Microelectronics, Chengdu Technological University , Chengdu 611730, People’s Republic of ChinaA series of Mn–Co–Ni–O/LaMnO _3 composite materials were synthesized through the sol-gel method. The structure of these powders changed from the spinel to a spinel–perovskite mixed phase as the content of LaMnO _3 increased from 0 to 50%. Meanwhile, some grains of composite material were refined to form many small particles and distributed among the porous microparticles. According to the absorption spectra of composite samples, the strong absorption structures appeared in visible ranges, especially between 400 and 730 nm. The photocatalytic degradation of tetracycline under the visible light irradiation indicated that the percentage of LaMnO _3 at 50% exhibited the highest degradation rate (70.2%) in 150 min. Its high photocatalytic activity was mainly due to the large surface area, strong visible light absorption and increased ratio of Mn ^3+ /Mn ^4+ ions. These new micro-structured photocatalysts were expected to show considerable potential applications in the water treatment.https://doi.org/10.1088/2053-1591/ab90bcspinel–perovskitecomposite materialmicroparticlephotocatalysis |
| spellingShingle | Chao Ma Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles Materials Research Express spinel–perovskite composite material microparticle photocatalysis |
| title | Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles |
| title_full | Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles |
| title_fullStr | Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles |
| title_full_unstemmed | Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles |
| title_short | Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles |
| title_sort | composite structure and enhanced photocatalytic activity in mn co ni o lamno3 microparticles |
| topic | spinel–perovskite composite material microparticle photocatalysis |
| url | https://doi.org/10.1088/2053-1591/ab90bc |
| work_keys_str_mv | AT chaoma compositestructureandenhancedphotocatalyticactivityinmnconiolamno3microparticles |