دورية أكاديمية
Synergistic Effect of Ion Doping and Type-II Heterojunction Construction and Ciprofloxacin Degradation by MIL-68(In,Bi)-NH 2 @BiOBr under Visible Light
| العنوان: | Synergistic Effect of Ion Doping and Type-II Heterojunction Construction and Ciprofloxacin Degradation by MIL-68(In,Bi)-NH 2 @BiOBr under Visible Light |
|---|---|
| المؤلفون: | Yongjun Peng, Jialiang Lin, Ji-Liang Niu, Xiaolan Guo, Yazhen Chen, Tongke Hu, Jianhua Cheng, Yongyou Hu |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Biochemistry, Microbiology, Biotechnology, Plant Biology, Space Science, Chemical Sciences not elsewhere classified, tandem mass spectrometry, step solvothermal reaction, major active sites, electron conduction mechanism, density functional theory, possible degradation products, adsorbed cip directly, 2 , novel bi ion, 1 , ion doping techniques, bi )- nh, ii heterojunction construction, )- nh, ii heterojunction, 1 %), ii heterojunctions, ion doping, bi ions, viable tactics, synergistic effect, study provides, situ growth |
| الوصف: | Heterojunction structure and ion doping techniques are viable tactics in facilitating the generation and separation of photogenerated electrons and holes in photocatalysis. In the current study, a novel Bi ion-doped MIL-68(In,Bi)-NH 2 @BiOBr (MIBN@BOB) type-II heterojunction was first synthesized in a one-step solvothermal reaction. Doping of Bi ions not only broadened the light-sensing range but also provided reliable anchor sites for the in situ growth of BiOBr. Meanwhile, the heterostructure supplied new channels for photogenerated carriers, accelerating the transfer and inhibiting the recombination of photogenerated electron–hole. The obtained MIBN@BOB exhibited enhanced photocatalytic performance (91.1%) than MIL-68(In)-NH 2 (40.8%) and BiOBr (57.5%) in ciprofloxacin (CIP) degradation under visible light, with excellent reusability. Photocatalysts were characterized in detail, and a series of photoelectrochemical tests were utilized to analyze the photoelectric properties. MIBN@BOB were deduced to conform the electron conduction mechanism of conventional type-II heterojunctions. More importantly, based on the above experiments and density functional theory (DFT) calculation, BiOBr-Bi in MIBN@BOB can serve as the major active sites of CIP enrichment, and •O 2 – and 1 O 2 generated at the BiOBr interface can react with the adsorbed CIP directly. Lastly, the possible degradation products and pathways of CIP were analyzed by liquid chromatography-tandem mass spectrometry (LC/MS/MS). This study provides a reference for the construction of ion-doping-modified metal–organic framework (MOF)-based heterojunction photocatalysts and their application in antibiotic removal. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://figshare.com/articles/journal_contribution/Synergistic_Effect_of_Ion_Doping_and_Type-II_Heterojunction_Construction_and_Ciprofloxacin_Degradation_by_MIL-68_In_Bi_-NH_sub_2_sub_BiOBr_under_Visible_Light/24943702Test |
| DOI: | 10.1021/acsami.3c16037.s001 |
| الإتاحة: | https://doi.org/10.1021/acsami.3c16037.s001Test https://figshare.com/articles/journal_contribution/Synergistic_Effect_of_Ion_Doping_and_Type-II_Heterojunction_Construction_and_Ciprofloxacin_Degradation_by_MIL-68_In_Bi_-NH_sub_2_sub_BiOBr_under_Visible_Light/24943702Test |
| حقوق: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.57F1AABB |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acsami.3c16037.s001 |
|---|