التفاصيل البيبلوغرافية
| العنوان: |
Visible-light induced selective oxidation of sulfides by hierarchical benzothiadiazole-based polymers |
| المؤلفون: |
YAN Mi, XUE Yun, SHEN Yan-ming, CHENG Hu, ZHUANG Jin-liang |
| المصدر: |
Cailiao gongcheng, Vol 49, Iss 7, Pp 64-70 (2021) |
| بيانات النشر: |
Journal of Materials Engineering, 2021. |
| سنة النشر: |
2021 |
| المجموعة: |
LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: |
conjugated microporous polymer, visible-light mediated catalysis, benzothiadiazole, sonog-ashira coupling reaction, sulfide oxidation, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: |
By using 4,7-dibromo-2,1,3-benzothiadiazole as photoactive group, the Sonogashira coupling between 4,7-dibromo-2,1,3-benzothiadiazole and 1,3,5-triethynylbenzene results in benzothiadiazole functionalized conjugated microporous polymer (CMP), named CMP-3-BT. The obtained CMP-3-BT shows hierarchical structures, which consists of microspheres and curved nanobelts. Moreover, CMP-3-BT is semiconductive porous materials with band gap of 2.24 eV. By using 425 nm LED (3 W) as light source, assisted by H2O2, CMP-3-BT enables the oxidation of thioanisole bearing various substituents to their corresponding sulfoxides under O2 atmospheres at room temperature with high efficiency and excellent selectivity. EPR spectra indicate that the 1O2 and O·- 2 are the active oxygen species for the photo-oxidation of thioanisole. Importantly, the catalytic activity of CMP-3-BT remains unchanged after 6 cycles, indicating the excellent structural stability and catalytic activity of CMP-3-BT serving as a reusable green catalyst. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
Chinese |
| تدمد: |
1001-4381 |
| Relation: |
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.001202; https://doaj.org/toc/1001-4381 |
| DOI: |
10.11868/j.issn.1001-4381.2020.001202 |
| URL الوصول: |
https://doaj.org/article/fc5b67d092d64dfb946217a684c95a14 |
| رقم الانضمام: |
edsdoj.fc5b67d092d64dfb946217a684c95a14 |
| قاعدة البيانات: |
Directory of Open Access Journals |