Background: Fenton reaction has been used for wastewater treatment. Photo-
Fenton-like reaction which utilizes light irradiation is an alternative for Fenton reaction to
enhance the degradation of pollutants.
Objective: To synthesize a photo-Fenton-like catalyst of high catalytic activity.
Methods: The heterojunction photo-Fenton-like catalysts of Cu2S-TiO2/multi-walled carbon
nanotubes (MWCNTs) were prepared by incorporating photocatalyst TiO2 into Fenton-like
catalyst Cu2S-loaded MWCNTs (Cu2S/MWCNTs). The morphologies and structures of the
samples were studied by means of transmission electron microscopy (TEM), X-ray diffraction
(XRD), and nitrogen adsorption/desorption at 77 K. The photo-Fenton-like catalytic activity
of TiO2-Cu2S/MWCNTs was investigated with degradation of methylene blue under
Results: TiO2-Cu2S/MWCNTs nanocomposites were prepared by incorporating TiO2 into
Cu2S/MWCNTs. The XRD results showed the coexistence of anatase TiO2 and Cu2S in the
samples. The nanocomposites had a nanoporous structure with BET specific surface area of
105 m2g-1 and main mesopores with pore volume of 0.71 cm3g-1, showing photo-Fenton-like
catalytic efficiency much higher than only Cu2S/MWCNTs under solar light.
Conclusion: The novel Cu2S-TiO2/MWCNTs exhibited high photo-Fenton-like catalytic efficiency
under solar light. It could be explored as a catalyst for wastewater treatment.