Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater
Cobalt-based perovskite catalysts doped with Ce and Mn were synthesized by sol-gel method using metal nitrate as raw materials. The structural properties of the prepared catalysts were investigated by XRD, SEM, TEM, XPS, EPR, etc. The photocatalytic degradation performance under xenon lamp condition...
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Editorial Office of Industrial Water Treatment
2024-12-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1219 |
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| author | XIE He TANG Bin CHEN Bingbing LI Jiali ZHAN Haijuan |
| author_facet | XIE He TANG Bin CHEN Bingbing LI Jiali ZHAN Haijuan |
| author_sort | XIE He |
| collection | DOAJ |
| description | Cobalt-based perovskite catalysts doped with Ce and Mn were synthesized by sol-gel method using metal nitrate as raw materials. The structural properties of the prepared catalysts were investigated by XRD, SEM, TEM, XPS, EPR, etc. The photocatalytic degradation performance under xenon lamp conditions was investigated by using alizarin red and acid fuchsin as probe organic pollutants. The degradation rates of alizarin red and acid fuchsin could reach 95% and 90%, respectively, and the catalyst maintained good degradation stability after being recycled for 6 times. The results showed that the introduction of Mn and Ce elements increased the specific surface area of LaCoO3-based perovskite, and more structural defects were formed in the crystal structure. XPS, ERP and infrared tests before and after the reaction showed that the oxygen vacancy defect in the material structure could promote the collapse of the quinone structure in the red structure of the material, and further improved the photocatalytic degradation performance. At the same time, surface oxygen species and oxygen vacancy were the main active species for photocatalytic degradation of organic pollutants, and LaCo0.7Ce0.3O3 showed the best photocatalytic degradation performance due to its suitable structural properties. |
| format | Article |
| id | doaj-art-1c411bb730a34a5cb705843eee2c29a2 |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-1c411bb730a34a5cb705843eee2c29a22025-01-14T02:07:08ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2024-12-01441213113710.19965/j.cnki.iwt.2023-12191005-829X（2024）12-0131-07Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewaterXIE He0TANG Bin1CHEN Bingbing2LI Jiali3ZHAN Haijuan4School of Science and Chemical Engineering, Ningxia Institute of Science and Technology, Shizuishan753000, ChinaCollege of Chemistry and Chemical Engineering, Ningxia University, Yinchuan750021, ChinaSchool of Science and Chemical Engineering, Ningxia Institute of Science and Technology, Shizuishan753000, ChinaSchool of Science and Chemical Engineering, Ningxia Institute of Science and Technology, Shizuishan753000, ChinaCollege of Chemistry and Chemical Engineering, Ningxia University, Yinchuan750021, ChinaCobalt-based perovskite catalysts doped with Ce and Mn were synthesized by sol-gel method using metal nitrate as raw materials. The structural properties of the prepared catalysts were investigated by XRD, SEM, TEM, XPS, EPR, etc. The photocatalytic degradation performance under xenon lamp conditions was investigated by using alizarin red and acid fuchsin as probe organic pollutants. The degradation rates of alizarin red and acid fuchsin could reach 95% and 90%, respectively, and the catalyst maintained good degradation stability after being recycled for 6 times. The results showed that the introduction of Mn and Ce elements increased the specific surface area of LaCoO3-based perovskite, and more structural defects were formed in the crystal structure. XPS, ERP and infrared tests before and after the reaction showed that the oxygen vacancy defect in the material structure could promote the collapse of the quinone structure in the red structure of the material, and further improved the photocatalytic degradation performance. At the same time, surface oxygen species and oxygen vacancy were the main active species for photocatalytic degradation of organic pollutants, and LaCo0.7Ce0.3O3 showed the best photocatalytic degradation performance due to its suitable structural properties.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1219perovskitemetal dopingphotocatalytic degradationorganic pollutants |
| spellingShingle | XIE He TANG Bin CHEN Bingbing LI Jiali ZHAN Haijuan Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater Gongye shui chuli perovskite metal doping photocatalytic degradation organic pollutants |
| title | Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater |
| title_full | Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater |
| title_fullStr | Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater |
| title_full_unstemmed | Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater |
| title_short | Synthesis of doped Co based perovskite and photocatalytic degradation of organic wastewater |
| title_sort | synthesis of doped co based perovskite and photocatalytic degradation of organic wastewater |
| topic | perovskite metal doping photocatalytic degradation organic pollutants |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1219 |
| work_keys_str_mv | AT xiehe synthesisofdopedcobasedperovskiteandphotocatalyticdegradationoforganicwastewater AT tangbin synthesisofdopedcobasedperovskiteandphotocatalyticdegradationoforganicwastewater AT chenbingbing synthesisofdopedcobasedperovskiteandphotocatalyticdegradationoforganicwastewater AT lijiali synthesisofdopedcobasedperovskiteandphotocatalyticdegradationoforganicwastewater AT zhanhaijuan synthesisofdopedcobasedperovskiteandphotocatalyticdegradationoforganicwastewater |