| Autor: |
LOU Xiuping, HUANG Qingwen, GUO Wenbo, LIU Xiaojin, WANG Xinyi, NIE Dongxia, HAN Zheng |
| Jazyk: |
English<br />Chinese |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Shipin Kexue, Vol 45, Iss 18, Pp 10-16 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1002-6630 |
| DOI: |
10.7506/spkx1002-6630-20231128-245 |
| Popis: |
In this study, ZnO nanoparticles with high crystallinity and good dispersibility for efficient and green photocatalytic degradation of T-2 toxin were successfully prepared by a green and mild solvent hydrothermal method. The properties and T-2 toxin degrading performance of the nanoparticles were characterized by high-resolution transmission electron microscopy (HRTEM) and transient photocurrent response (TPR), and the factors affecting the T-2 toxin degrading performance and the underlying mechanism were explored. The results showed that the average particle size of the prepared nanoparticles was 43.23 nm. Under optimized conditions, more than 95% of T-2 toxin at an initial concentration of 5 μg/mL was removed after photocatalytic degradation with the nanoparticles for 240 min, with a degradation kinetic constant of 0.029 9 μg/(mL·min). The optimal catalyst dose was 0.5 mg/mL, and the optimal pH was 5–9 for the degradation of T-2 toxin. The photoelectric characterization confirmed the excellent optical absorption, response and charge separation performance of the ZnO nanoparticles and identified hydroxyl radicals to play a dominant role in T-2 toxin degradation. The current work provides an effective theoretical basis and technical support for the green and efficient degradation, conversion and removal of T-2 toxin. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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