Photocatalytic synergistic biofilms enhance tetracycline degradation and conversion.

Autor: Xiao C; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China., Yuan J; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China., Li L; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China., Zhong N; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China., Zhong D; School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China., Xie Q; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China., Chang H; School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China., Xu Y; School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China., He X; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China., Li M; Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education, Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, Chongqing Key Laboratory of Fiber Optic Sensor and Photodetector, Chongqing University of Technology, Chongqing, 400054, China.
Jazyk: angličtina
Zdroj: Environmental science and ecotechnology [Environ Sci Ecotechnol] 2022 Dec 30; Vol. 14, pp. 100234. Date of Electronic Publication: 2022 Dec 30 (Print Publication: 2023).
DOI: 10.1016/j.ese.2022.100234
Abstrakt: Tetracyclines are refractory pollutants that cause persistent harm to the environment and human health. Therefore, it is urgently necessary to develop methods to promote the efficient degradation and conversion of tetracyclines in wastewater. This report proposes a photobiocatalytic synergistic system involving the coupling of GeO 2 /Zn-doped phosphotungstic acid hydrate/TiO 2 (GeO 2 /Zn-HPW/TiO 2 )-loaded photocatalytic optical hollow fibers (POHFs) and an algal-bacterial biofilm. The GeO 2 /Zn-HPW/TiO 2 photocatalyst exhibits a broad absorption edge extending to 1000 nm, as well as high-efficiency photoelectric conversion and electron transfer, which allow the GeO 2 /Zn-HPW/TiO 2 -coated POHFs to provide high light intensity to promote biofilm growth. The resulting high photocatalytic activity rapidly and stably reduces the toxicity and increases the biodegradability of tetracycline-containing wastewater. The biofilm enriched with Salinarimonas, Coelastrella sp., and Rhizobium , maintains its activity for the rapid photocatalytic degradation and biotransformation of intermediates to generate the O 2 required for photocatalysis. Overall, the synergistic photocatalytic biofilm system developed herein provides an effective and efficient approach for the rapid degradation and conversion of water containing high concentrations of tetracycline.
(© 2022 The Authors.)
Databáze: MEDLINE
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