Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli
Photocatalytic inactivation has been proved to be an effective strategy to eliminate pathogenic bacteria in water. Herein, a novel 0D/2D p-n heterojunction of Ag _2 S-anchored P-doped g-C _3 N _4 (Ag _2 S/PCN) were constructed by a simple two-step process coupling one-pot calcination and ultrasonic-...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac8b66 |
| _version_ | 1827868670871732224 |
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| author | Wanshu Yan Pingping Hu Yiguo Jiang Xiuquan Xu Xianfeng Ma Mengru Wang Xinyue Bao |
| author_facet | Wanshu Yan Pingping Hu Yiguo Jiang Xiuquan Xu Xianfeng Ma Mengru Wang Xinyue Bao |
| author_sort | Wanshu Yan |
| collection | DOAJ |
| description | Photocatalytic inactivation has been proved to be an effective strategy to eliminate pathogenic bacteria in water. Herein, a novel 0D/2D p-n heterojunction of Ag _2 S-anchored P-doped g-C _3 N _4 (Ag _2 S/PCN) were constructed by a simple two-step process coupling one-pot calcination and ultrasonic-assisted synthesis. The photocatalytic performance of as-prepared Ag _2 S/PCN composites was investigated by inactivating multidrug-resistant E. coli under visible light irradiation. The results indicated that Ag _2 S/PCN-5 possessed outstanding photocatalytic inactivation activity and superior stability, which could completely inactivate 7.0 log E. coli cells within 60 min. The enhanced photocatalytic activity of Ag _2 S/PCN-5 was mainly attributed to the elevated visible-light response and improved production and transfer of photoexcited charges. In addition, the free radicals trapping experiments results revealed that h ^+ and •O _2 ^− were predominantly responsible for the efficient inactivation activity. Finally, according to the 0D/2D structure and energy band configuration analysis, the enhanced p-n type heterojunction photocatalytic inactivation mechanism of Ag _2 S/PCN was discussed in detail. |
| first_indexed | 2024-03-12T15:35:40Z |
| format | Article |
| id | doaj.art-b51a58a0fc6049d0a20a1aacc50b897d |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:35:40Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-b51a58a0fc6049d0a20a1aacc50b897d2023-08-09T16:16:02ZengIOP PublishingMaterials Research Express2053-15912022-01-019909500110.1088/2053-1591/ac8b66Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coliWanshu Yan0Pingping Hu1Yiguo Jiang2Xiuquan Xu3https://orcid.org/0000-0001-9513-0710Xianfeng Ma4Mengru Wang5Xinyue Bao6Wuxi Institute of Mechanical and Electrical Engineering, Jiangsu University , Wuxi, 214121, People’s Republic of ChinaDepartment of Pathology, Zhenjiang Hospital of Chinese Traditional and Western Medicine, Affiliated to Jiangsu University , Zhenjiang, 212000, People’s Republic of ChinaSuzhou Science & Technology Town Hospital, Gusu School, Nanjing Medical University , Suzhou, 215153, People’s Republic of ChinaSchool of Pharmacy, Jiangsu University , Zhenjiang, 212013, People’s Republic of ChinaSchool of Pharmacy, Jiangsu University , Zhenjiang, 212013, People’s Republic of ChinaSchool of Pharmacy, Jiangsu University , Zhenjiang, 212013, People’s Republic of ChinaSchool of Pharmacy, Jiangsu University , Zhenjiang, 212013, People’s Republic of ChinaPhotocatalytic inactivation has been proved to be an effective strategy to eliminate pathogenic bacteria in water. Herein, a novel 0D/2D p-n heterojunction of Ag _2 S-anchored P-doped g-C _3 N _4 (Ag _2 S/PCN) were constructed by a simple two-step process coupling one-pot calcination and ultrasonic-assisted synthesis. The photocatalytic performance of as-prepared Ag _2 S/PCN composites was investigated by inactivating multidrug-resistant E. coli under visible light irradiation. The results indicated that Ag _2 S/PCN-5 possessed outstanding photocatalytic inactivation activity and superior stability, which could completely inactivate 7.0 log E. coli cells within 60 min. The enhanced photocatalytic activity of Ag _2 S/PCN-5 was mainly attributed to the elevated visible-light response and improved production and transfer of photoexcited charges. In addition, the free radicals trapping experiments results revealed that h ^+ and •O _2 ^− were predominantly responsible for the efficient inactivation activity. Finally, according to the 0D/2D structure and energy band configuration analysis, the enhanced p-n type heterojunction photocatalytic inactivation mechanism of Ag _2 S/PCN was discussed in detail.https://doi.org/10.1088/2053-1591/ac8b66g-C3N4P-dopedAg2Sp-n heterojunctionphotocatalytic inactivation |
| spellingShingle | Wanshu Yan Pingping Hu Yiguo Jiang Xiuquan Xu Xianfeng Ma Mengru Wang Xinyue Bao Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli Materials Research Express g-C3N4 P-doped Ag2S p-n heterojunction photocatalytic inactivation |
| title | Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli |
| title_full | Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli |
| title_fullStr | Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli |
| title_full_unstemmed | Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli |
| title_short | Ag2S nanoparticles anchored on P-doped g-C3N4: a novel 0D/2D p-n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug-resistant E. coli |
| title_sort | ag2s nanoparticles anchored on p doped g c3n4 a novel 0d 2d p n 2 heterojunction for superior photocatalytic inactivation of 3 multidrug resistant e coli |
| topic | g-C3N4 P-doped Ag2S p-n heterojunction photocatalytic inactivation |
| url | https://doi.org/10.1088/2053-1591/ac8b66 |
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