In this study, we report the synthesis of a novel α-Fe 2 O 3 decorated g-C 3 N 4 /ZnO (g-C 3 N 4 /ZnO@α-Fe 2 O 3 ) ternary Z-scheme photocatalyst for degradation of organic dye. The g-C 3 N 4 /ZnO@α-Fe 2 O 3 ternary nanocomposite was synthesized by using the direct pyrolysis and sol-gel methods. Different physicochemical methods were used to confirm the as-synthesized nanomaterials including Transmission electron microscopy, high-resolution field-emission scanning electron microscopy, Fourier Transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The as-synthesized different nanocomposite materials were used to investigate the photodegradation of tartrazine (Acid Yellow 23). Photoluminescence spectra revealed that the g-C 3 N 4 /ZnO@α-Fe 2 O 3 ternary nanocomposite has lower recombination rate than pristine g-C 3 N 4 . The as-synthesized nanocomposite showed high photocatalytic activity towards degradation of tartrazine than that of g-C 3 N 4 , ZnO, ZnO@α-Fe 2 O 3 . Also, g-C 3 N 4 /ZnO@α-Fe 2 O 3 nanocomposite can able to degrade 99.34% of tartrazine within 35 min under visible light irradiation. The g-C 3 N 4 /ZnO@α-Fe 2 O 3 nanocomposite has a higher rate constant and excellent cyclic stability towards the photodegradation of tartrazine. The electrochemical impedance spectra results confirmed that the g-C 3 N 4 /ZnO@α-Fe 2 O 3 nanocomposite has faster electron-transfer ability towards the electrode surface than that of g-C 3 N 4, ZnO, and ZnO@α-Fe 2 O 3 composite.
|دورية||Journal of the Taiwan Institute of Chemical Engineers|
|المعرِّفات الرقمية للأشياء|
|حالة النشر||Published - 2019|
ASJC Scopus subject areas