Tailoring CuO<i><sub>x</sub></i> loading on CoFe<sub>2</sub>O<sub>4</sub> nanocubes photocatalyst for superior photocatalytic degradation of triclosan pollutants under VL irradiation and toxicological evaluation
- Authors
- Subash, Velu; Manikandan, Velu; Song, Kwang Soup; Sethuraman, Veeran; Elango, Duraisamy; Muthusamy, Govarthanan; Kim, Woong; Jayanthi, Palaniyappan
- Issue Date
- Oct-2024
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- CuOx(3 wt%)/CoFe2O4 NCs; TCS degradation; Nanocubes structure; Degradation mechanism: C. elegans; Reactive oxygen species
- Citation
- ENVIRONMENTAL RESEARCH, v.258
- Journal Title
- ENVIRONMENTAL RESEARCH
- Volume
- 258
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/28830
- DOI
- 10.1016/j.envres.2024.119395
- ISSN
- 0013-9351
1096-0953
- Abstract
- In this study, we report the development of a novel CuOx(3 wt%)/CoFe2O4 nanocubes (NCs) photocatalyst through simple co-precipitation and wet impregnation methods for the efficient photocatalytic degradation of triclosan (TCS) pollutants. Initially, rod-shaped bare CoFe2O4 was synthesized using a simple co-precipitation technique. Subsequently, CuOx was loaded in various percentages (1, 2, and 3 wt%) onto the surface of bare CoFe2O4 nanorods (NRs) via the wet impregnation method. The synthesized materials were systematically characterized to evaluate their composition, structural and electrical characteristics. The CuOx(3 wt%)/CoFe2O4 NCs photocatalyst exhibited superior photocatalytic degradation efficiency of TCS (89.9%) compared to bare CoFe2O4 NRs (62.1 %), CuOx(1 wt%)/CoFe2O4 (80.1 %), CuOx(2 wt%)/CoFe2O4 (87.0 %) under visible light (VL) irradiation (lambda = 420 nm), respectively. This enhanced performance was attributed to the improved separation effectiveness of photogenerated electron (e) and hole (h(+)) in CuOx(3 wt%)/CoFe2O4 NCs. Furthermore, the optimized CuOx(3 wt%)/CoFe2O4 NCs exhibited strong stability and reusability in TCS degradation, as demonstrated by three successive cycles. Genetic screening on Caenorhabditis elegans showed that CuOx(3 wt %)/CoFe2O4 NCs reduced ROS-induced oxidative stress during TCS photocatalytic degradation. ROS levels decreased at 30, 60, and 120-min intervals during TCS degradation, accompanied by improved egg hatching rates. Additionally, expression levels of stress-responsible antioxidant proteins like SOD-3GFP and HSP-16.2GFP were significantly normalized. This study demonstrates the efficiency of CuOx(3 wt%)/CoFe2O4 NCs in degrading TCS pollutants, offers insights into toxicity dynamics, and recommends its use for future environmental remediation.
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