1. A high-flux, photocatalytic wood-derived filter for high-efficiency water purification.
- Author
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Fang H, Yu Q, Jiang Y, Cai Y, Sun J, Chen B, Huang H, Li X, Dai S, Shi S, Wu Y, and Cheng F
- Subjects
- Catalysis, Rhodamines chemistry, Rhodamines isolation & purification, Tetracycline chemistry, Tetracycline isolation & purification, Bismuth chemistry, Photochemical Processes, Carbon chemistry, Water Purification methods, Wood chemistry, Filtration methods, Water Pollutants, Chemical chemistry, Water Pollutants, Chemical isolation & purification
- Abstract
Wastewater purification has evolved into a global problem in the face of increasing scarcity of freshwater resources. Photocatalysis technology possesses prominent advantages in treating pollutants in water because of its low cost and mild reaction conditions, which provides an effective way to treat multiple pollutants and reduce membrane fouling. Herein, we combine photocatalysis technology with filtration technology via in situ reduction Bi
0 with Bi2 SiO5 strategy incorporating a carbonized wood filter to synthesize carbon/Bi2 SiO5 @Bi bi-functional composite. Thus, simultaneous filtration and photocatalytic degradation of Rhodamine B and tetracycline were achieved. After filtrating for 30 min, the degradation rate of RhB and TC were 94.23 % and 81.39 %, respectively. Especially, the flux of RhB and TC were up to 2162.16 L m-2 h-1 and 1811.32 L m-2 h-1 . In addition, the composite filter also has good recyclability and reusability, after 5 cycles, the degradation efficiency of RhB remains at 91 %. This study utilized photocatalytic technology combined with membrane filtration technology to successfully solve the contradiction between catalytic efficiency and water flux, which realized rapid and dynamic removal of organic pollutants from water. Besides, the use of carbonized wood-based materials provides a potential biomass technology for the preparation of bifunctional photocatalytic filters., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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