Details

Autor(en) / Beteiligte

• Tran, Thi-Giang
• Ly, Nguyễn Hoàng
• Nguyen, Thi Trang
• Son, Sang Jun
• Vasseghian, Yasser
• Joo, Sang-Woo
• Luque, Rafael

Titel

Subppb level monitoring and UV degradation of triclosan pollutants using ZnO multipod and Ag nanocomposites

Ist Teil von

• Environmental pollution (1987), 2023-05, Vol.325, p.121441-121441, Article 121441

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2023

Quelle

MEDLINE

Beschreibungen/Notizen

• A unique nanomaterial platform was developed for trace detection and efficient degradation of triclosan (TCS). A facile spectroscopic technique for surface-enhanced Raman scattering (SERS)-supported identification and ultraviolet (UV) degradation of TCS using a SERS template based on silver spherical nanoparticle (AgNP)-modified ZnO multipods (ZnO@Ag) is reported. Core-shell composite materials of ZnO multipods with a dimension of around 3 μm and AgNPs with an average diameter of ∼27 nm was designed not only as a substrate for TCS degradation up to ∼92% upon UV irradiation (λ = 365 mm, 300 μW/cm2) but also as a monitoring platform sensitive to TCS at a detection limit as low as 10−9 M (≈0.3 ppb). Herein, the first investigation into ZnO@Ag bimetallic composites is established for both the SERS-based detection and UV-assisted degradation of environmental TCS pollutants. The calibration curve was estimated to be linear at R2 > 0.97. The validated technology was successfully used to determine the antibacterial agent and TCS in distilled or river water. The advantages of the ZnO@Ag template are highlighted over conventional detection and excellent degradation. [Display omitted] •Triclosan pollutant levels could be monitored using a spectroscopic technique.•Ag nanoparticle-decorated ZnO multipod composites were introduced as a substrate.•Subppb level detection limit was reached for triclosan (10−9 M ≈ 0.3 ppb).•UV irradiation at 365 nm could remove up to ∼92% of triclosan on glass surfaces.