First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance
Abstract This study innovatively modified LaZnO3 perovskite with waste spirulina biochar to construct a new photocatalyst system, LaZnO3-Biochar (LaZnO3-B). For the first time, the low-temperature environment in the Northern Hemisphere was simulated to explore its visible - light degradation of sulf...
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-07226-9 |
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| author | Ting Guo Xuefei Tan Zeyu Tian Xiaohui Fang Xinqi Liu Zhifa Wan |
| author_facet | Ting Guo Xuefei Tan Zeyu Tian Xiaohui Fang Xinqi Liu Zhifa Wan |
| author_sort | Ting Guo |
| collection | DOAJ |
| description | Abstract This study innovatively modified LaZnO3 perovskite with waste spirulina biochar to construct a new photocatalyst system, LaZnO3-Biochar (LaZnO3-B). For the first time, the low-temperature environment in the Northern Hemisphere was simulated to explore its visible - light degradation of sulfathiazole-type antibiotics and the regeneration strategy. At a low temperature of 0℃, LaZnO3-B demonstrated outstanding activity, achieving a sulfathiazole (STZ) conversion rate of 56.5% within 5 min and maintaining 52.1% after 105 min, breaking through the bottleneck of low efficiency of traditional photocatalysts at low temperatures. Density functional theory (DFT) calculations revealed its structural advantages, with more active sites and a unique core-shell structure ensuring photocatalytic performance at low temperatures and pointing out a direction for the design of novel photocatalysts. The deposition of by-products and pollutants led to the catalyst deactivation. However, simple water rinsing could restore its activity. Even after three rinses, the STZ removal rate was still nearly 50%. This regeneration strategy is simple and efficient, showing great potential for application. |
| format | Article |
| id | doaj-art-e1b1fd75c679487e9907da4643df9cd1 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-e1b1fd75c679487e9907da4643df9cd12025-08-20T03:45:23ZengNature PortfolioScientific Reports2045-23222025-07-011511810.1038/s41598-025-07226-9First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performanceTing Guo0Xuefei Tan1Zeyu Tian2Xiaohui Fang3Xinqi Liu4Zhifa Wan5College of Mechanical and Electrical Engineering, Heilongjiang Institute of TechnologySchool of Materials Science and Engineering, Heilongjiang Institute of TechnologyCollege of Surveying and Mapping, Heilongjiang Institute of TechnologyCollege of Surveying and Mapping, Heilongjiang Institute of TechnologyCollege of Surveying and Mapping, Heilongjiang Institute of TechnologySchool of Materials Science and Engineering, Heilongjiang Institute of TechnologyAbstract This study innovatively modified LaZnO3 perovskite with waste spirulina biochar to construct a new photocatalyst system, LaZnO3-Biochar (LaZnO3-B). For the first time, the low-temperature environment in the Northern Hemisphere was simulated to explore its visible - light degradation of sulfathiazole-type antibiotics and the regeneration strategy. At a low temperature of 0℃, LaZnO3-B demonstrated outstanding activity, achieving a sulfathiazole (STZ) conversion rate of 56.5% within 5 min and maintaining 52.1% after 105 min, breaking through the bottleneck of low efficiency of traditional photocatalysts at low temperatures. Density functional theory (DFT) calculations revealed its structural advantages, with more active sites and a unique core-shell structure ensuring photocatalytic performance at low temperatures and pointing out a direction for the design of novel photocatalysts. The deposition of by-products and pollutants led to the catalyst deactivation. However, simple water rinsing could restore its activity. Even after three rinses, the STZ removal rate was still nearly 50%. This regeneration strategy is simple and efficient, showing great potential for application.https://doi.org/10.1038/s41598-025-07226-9LaZnO3 perovskiteBiocharPhotocatalysisInactivation and regeneration |
| spellingShingle | Ting Guo Xuefei Tan Zeyu Tian Xiaohui Fang Xinqi Liu Zhifa Wan First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance Scientific Reports LaZnO3 perovskite Biochar Photocatalysis Inactivation and regeneration |
| title | First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance |
| title_full | First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance |
| title_fullStr | First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance |
| title_full_unstemmed | First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance |
| title_short | First synthesis of the LaZnO3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance |
| title_sort | first synthesis of the lazno3 biochar perovskite used as a photocatalyst with the enhanced deactivation mechenism and regenerable performance |
| topic | LaZnO3 perovskite Biochar Photocatalysis Inactivation and regeneration |
| url | https://doi.org/10.1038/s41598-025-07226-9 |
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