2D TiO 2 Nanosheets Decorated Via Sphere-Like BiVO 4 : A Promising Non-Toxic Material for Liquid Phase Photocatalysis and Bacterial Eradication.

Autor: Hanif MB; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia., Bacova J; Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, 532 10, Czechia., Berezenko V; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.; Department of Environmental Ecology and Landscape Management, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia., Zeng Y; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.; Department of Environmental Ecology and Landscape Management, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia., Paluch E; Department of Microbiology, Faculty of Medicine, Wroclaw Medical University, 50-368, Wroclaw, Poland., Seniuk A; Department of Microbiology, Faculty of Medicine, Wroclaw Medical University, 50-368, Wroclaw, Poland., Khan MZ; Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China., Rauf S; College of Electronics and Information Engineering, Shenzhen University, Shenzhen, Guangdong Province, 518000, China., Hussain I; Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China., Motlochova M; Institute of Inorganic Chemistry, Czech Academy of Sciences, Husinec-Rez 1001, Rez, 250 68, Czechia., Plesch G; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia., Monfort O; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia., Capek J; Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, 532 10, Czechia., Dworniczek E; Department of Microbiology, Faculty of Medicine, Wroclaw Medical University, 50-368, Wroclaw, Poland., Rousar T; Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, 532 10, Czechia., Motola M; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2024 Sep 09; Vol. 17 (17), pp. e202400027. Date of Electronic Publication: 2024 Aug 07.
DOI: 10.1002/cssc.202400027
Abstrakt: An in-depth investigation was conducted on a promising composite material (BiVO 4 /TiO 2 ), focusing on its potential toxicity, photoinduced catalytic properties, as well as its antibiofilm and antimicrobial functionalities. The preparation process involved the synthesis of 2D TiO 2 using the lyophilization method, which was subsequently functionalized with sphere-like BiVO 4 through wet impregnation. Finally, we developed BiVO 4 /TiO 2 S-scheme heterojunctions which can greatly promote the separation of electron-hole pairs to achieve high photocatalytic performance. The evaluation of concentration- and time-dependent viability inhibition was performed on human lung carcinoma epithelial A549 cells. This assessment included the estimation of glutathione levels and mitochondrial dehydrogenase activity. Significantly, the BiVO 4 /TiO 2 composite demonstrated minimal toxicity towards A549 cells. Impressively, the BiVO 4 /TiO 2 composite exhibited notable photocatalytic performance in the degradation of rhodamine B (k=0.135 min -1 ) and phenol (k=0.016 min -1 ). In terms of photoinduced antimicrobial performance, the composite effectively inactivated both gram-negative E. coli and gram-positive E. faecalis bacteria upon 60 minutes of UV-A light exposure, resulting in a significant log 6 (log 10 CFU/mL) reduction in bacterial count. In addition, a 49 % reduction of E. faecalis biofilm was observed. These promising results can be attributed to the unique 2D morphology of TiO 2 modified by sphere-like BiVO 4 , leading to an increased generation of (intracellular) hydroxyl radicals, which plays a crucial role in the treatments of both organic pollutants and bacteria. This research has significant potential for various applications, particularly in addressing environmental contamination and microbial infections.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: