Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin
Antibiotics cannot be effectively removed by traditional wastewater treatment processes, and have become widespread pollutants in various environments. In this study, a Z-type heterojunction photo-catalyst Pg-C<sub>3</sub>N<sub>4</sub> (PCN)/Nitrogen doped biochar (N-Biochar)...
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MDPI AG
2024-04-01
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| Online Access: | https://www.mdpi.com/1996-1944/17/7/1634 |
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| author | Yi Li Wenyu Wang Lei Chen Huifang Ma Xi Lu Hongfang Ma Zhibao Liu |
| author_facet | Yi Li Wenyu Wang Lei Chen Huifang Ma Xi Lu Hongfang Ma Zhibao Liu |
| author_sort | Yi Li |
| collection | DOAJ |
| description | Antibiotics cannot be effectively removed by traditional wastewater treatment processes, and have become widespread pollutants in various environments. In this study, a Z-type heterojunction photo-catalyst Pg-C<sub>3</sub>N<sub>4</sub> (PCN)/Nitrogen doped biochar (N-Biochar)/BiVO<sub>4</sub> (NCBN) for the degradation of norfloxacin (NOR) was prepared by the hydrothermal method. The specific surface area of the NCBN (42.88 m<sup>2</sup>/g) was further improved compared to BiVO<sub>4</sub> (4.528 m<sup>2</sup>/g). The photo-catalytic performance of the catalyst was investigated, and the N-Biochar acted as a charge transfer channel to promote carrier separation and form Z-type heterojunctions. Moreover, the NCBN exhibited excellent performance (92.5%) in removing NOR, which maintained 70% degradation after four cycles. The main active substance of the NCBN was •O<sub>2</sub><sup>−</sup>, and the possible degradation pathways are provided. This work will provide a theoretical basis for the construction of heterojunction photo-catalysts. |
| first_indexed | 2024-04-24T10:40:34Z |
| format | Article |
| id | doaj.art-db3ac5bdeca04ea095ca3dcb9310c9c7 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-24T10:40:34Z |
| publishDate | 2024-04-01 |
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| record_format | Article |
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| spelling | doaj.art-db3ac5bdeca04ea095ca3dcb9310c9c72024-04-12T13:22:11ZengMDPI AGMaterials1996-19442024-04-01177163410.3390/ma17071634Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of NorfloxacinYi Li0Wenyu Wang1Lei Chen2Huifang Ma3Xi Lu4Hongfang Ma5Zhibao Liu6School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaAntibiotics cannot be effectively removed by traditional wastewater treatment processes, and have become widespread pollutants in various environments. In this study, a Z-type heterojunction photo-catalyst Pg-C<sub>3</sub>N<sub>4</sub> (PCN)/Nitrogen doped biochar (N-Biochar)/BiVO<sub>4</sub> (NCBN) for the degradation of norfloxacin (NOR) was prepared by the hydrothermal method. The specific surface area of the NCBN (42.88 m<sup>2</sup>/g) was further improved compared to BiVO<sub>4</sub> (4.528 m<sup>2</sup>/g). The photo-catalytic performance of the catalyst was investigated, and the N-Biochar acted as a charge transfer channel to promote carrier separation and form Z-type heterojunctions. Moreover, the NCBN exhibited excellent performance (92.5%) in removing NOR, which maintained 70% degradation after four cycles. The main active substance of the NCBN was •O<sub>2</sub><sup>−</sup>, and the possible degradation pathways are provided. This work will provide a theoretical basis for the construction of heterojunction photo-catalysts.https://www.mdpi.com/1996-1944/17/7/1634Z-scheme heterojunctionPCN/N-Biochar/BiVO<sub>4</sub>photocatalysisnorfloxacin |
| spellingShingle | Yi Li Wenyu Wang Lei Chen Huifang Ma Xi Lu Hongfang Ma Zhibao Liu Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin Materials Z-scheme heterojunction PCN/N-Biochar/BiVO<sub>4</sub> photocatalysis norfloxacin |
| title | Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin |
| title_full | Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin |
| title_fullStr | Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin |
| title_full_unstemmed | Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin |
| title_short | Visible-Light-Driven Z-Type Pg-C<sub>3</sub>N<sub>4</sub>/Nitrogen Doped Biochar/BiVO<sub>4</sub> Photo-Catalysts for the Degradation of Norfloxacin |
| title_sort | visible light driven z type pg c sub 3 sub n sub 4 sub nitrogen doped biochar bivo sub 4 sub photo catalysts for the degradation of norfloxacin |
| topic | Z-scheme heterojunction PCN/N-Biochar/BiVO<sub>4</sub> photocatalysis norfloxacin |
| url | https://www.mdpi.com/1996-1944/17/7/1634 |
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