التفاصيل البيبلوغرافية
| العنوان: |
Immobilization of Bi 2 WO 6 on Polymer Membranes for Photocatalytic Removal of Micropollutants from Water – A Stable and Visible Light Active Alternative |
| المؤلفون: |
Fischer, Kristina, Abdul Latif, Amira, Griebel, Jan, Prager, Andrea, Shayestehpour, Omid, Zahn, Stefan, Schulze, Agnes |
| المصدر: |
Global Challenges ; volume 8, issue 3 ; ISSN 2056-6646 2056-6646 |
| بيانات النشر: |
Wiley |
| سنة النشر: |
2024 |
| المجموعة: |
Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: |
In this work, bismuth tungstate Bi 2 WO 6 is immobilized on polymer membranes to photocatalytically remove micropollutants from water as an alternative to titanium dioxide TiO 2 . A synthesis method for Bi 2 WO 6 preparation and its immobilization on a polymer membrane is developed. Bi 2 WO 6 is characterized using X‐ray diffraction and UV–vis reflectance spectroscopy, while the membrane undergoes analysis through scanning electron microscopy, X‐ray photoelectron spectroscopy, and degradation experiments. The density of states calculations for TiO 2 and Bi 2 WO 6 , along with PVDF reactions with potential reactive species, are investigated by density functional theory. The generation of hydroxyl radicals OH • is investigated via the reaction of coumarin to umbelliferone via fluorescence probe detection and electron paramagnetic resonance. Increasing reactant concentration enhances Bi 2 WO 6 crystallinity. Under UV light at pH 7 and 11, the Bi 2 WO 6 membrane completely degrades propranolol in 3 and 1 h, respectively, remaining stable and reusable for over 10 cycles (30 h). Active under visible light with a bandgap of 2.91 eV, the Bi 2 WO 6 membrane demonstrates superior stability compared to a TiO 2 membrane during a 7‐day exposure to UV light as Bi 2 WO 6 does not generate OH • radicals. The Bi 2 WO 6 membrane is an alternative for water pollutant degradation due to its visible light activity and long‐term stability. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| DOI: |
10.1002/gch2.202300198 |
| الإتاحة: |
https://doi.org/10.1002/gch2.202300198Test |
| حقوق: |
http://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: |
edsbas.4F862C2 |
| قاعدة البيانات: |
BASE |
