التفاصيل البيبلوغرافية
| العنوان: |
Design of One-Dimensional Cadmium Sulfide/Polydopamine Heteronanotube Photocatalysts for Ultrafast Degradation of Antibiotics |
| المؤلفون: |
Jingyu Lu (621174), Chuanjie Fang (6707276), Guitu Wang (11921744), Liping Zhu (25704) |
| سنة النشر: |
2022 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Microbiology, Biotechnology, Evolutionary Biology, Ecology, Sociology, Marine Biology, Computational Biology, Chemical Sciences not elsewhere classified, significant importance due, natural solar energy, level synergistic effects, high transfer rate, exceptional catalytic ability, 2 times higher, aqueous antibiotic degradation, ultrafast antibiotic degradation, polydopamine heteronanotube photocatalysts, dimensional cadmium sulfide, ultrafast degradation, cadmium sulfide, photocatalysts used, doped polydopamine, situ growth, severe threats, photogenerated holes, photocatalytic mechanism, major challenge, key roles, important engineering, human health |
| الوصف: |
The removal of antibiotics in environmental water is of significant importance due to their severe threats to human health and the ecosystem balance but remains as a major challenge. Visible-light photocatalytic degradation provides a desirable way to dispose of antibiotics by natural solar energy. Herein, cadmium sulfide-doped polydopamine (CdS/PDA) heteronanotubes (HNTs) featuring superior photocatalytic capability for ultrafast antibiotic degradation under visible light (14.2 times higher than traditional CdS) was developed via an in situ coordination polymerization strategy. The exceptional catalytic ability was attributed to multiple-level synergistic effects between PDA and CdS. PDA nanotubes (NTs) served as a scaffold for in situ growth of CdS nanocrystals, and the resulting CdS/PDA heterostructures exhibited strong visible-light-harvesting capability and a high transfer rate of photogenerated electron–hole pairs. Furthermore, the photocatalytic mechanism of the CdS/PDA HNTs toward model molecule tetracycline is disclosed in detail, and it is shown that superoxide radical anions ( • O 2 – ) and photogenerated holes (h + ) play the key roles in the decomposition of tetracycline. Our findings demonstrate that the incorporation of PDA NTs as the scaffold is a feasible strategy to enhance the visible-light sensitivity of photocatalysts used in aqueous antibiotic degradation. This work provides new insights into the development of new functional nanocomposite catalysts with important engineering and environmental applications. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://figshare.com/articles/journal_contribution/Design_of_One-Dimensional_Cadmium_Sulfide_Polydopamine_Heteronanotube_Photocatalysts_for_Ultrafast_Degradation_of_Antibiotics/18092762Test |
| DOI: |
10.1021/acs.iecr.1c04104.s001 |
| الإتاحة: |
https://doi.org/10.1021/acs.iecr.1c04104.s001Test |
| حقوق: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.85FDB6F4 |
| قاعدة البيانات: |
BASE |
