Akademik Veri Yönetim Sistemi
International Refereed Journal of Engineering and Science , cilt.1, sa.1, ss.1-13, 2024 (Hakemli Dergi)
This
study investigates the efficiency of Bi2O3-ZnO nanocomposites
in the photodegradation of two endocrine disruptors: polybrominated diphenyl
ether (PBDE) and benzophenone (BP). Bi2O3 particles
coated on ZnO (ZNRs) were synthesized through the integration of a hydrothermal
technique with a chemical precipitation method. The synthesized nanocomposites
were extensively characterized using X-ray diffraction (XRD), field
emission-scanning electron microscopy (FE-SEM), transmission electron
microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and UV–Vis
absorption studies. The characterization results confirmed the successful
co-existence of Bi2O3 and ZnO within the nanocomposite
and highlighted the chemical interaction between the two components. The Bi2O3
nanoparticles were observed to be uniformly distributed on the surfaces of the
ZNRs. Under sunligt power, the Bi2O3-ZNR nanocomposites
exhibited superior photocatalytic activity compared to pure ZNRs, particularly
in the degradation of two endocrine-disrupting chemicals: diphenyl ether and
benzophenone. This enhanced photocatalytic performance is attributed to the
improved separation efficiency of photogenerated electron-hole pairs
facilitated by the cooperative role of Bi2O3 loading on
the ZNRs. Furthermore, the Bi2O3-ZNR nanocomposite
demonstrated the advantage of easy recovery and reusability due to its
one-dimensional structure.