High Efficient Cu₂O/TiO₂ Nanocomposite Photocatalyst to Degrade Organic Polluant under Visible Light Irradiation

Abstract

The enhanced photocatalytic properties of Cu 2 O/TiO 2 nanocomposites resulting from the synthesis of uniform p-type Cu 2 O and n-type TiO 2 via wet chemical method were studied. The nanocomposite also had been well characterized and tested for its photocatalytic activity. These results indicate that the photocatalytic performance of the composites is clearly improved. The degradation rate of methylene blue solution (10 mg/L) increased to 93.67% in 45 minutes. The p-n heterojunction theory was used to explain the enhanced photocatalytic properties. The photocatalytic performances of Cu 2 O/TiO 2 nanocomposites and its photoreaction mechanism were proposed and discussed in this work.

Enhancement of the photocatalytic response of Cu-doped TiO2 nanotubes induced by the addition of strontium

“…This morphological approach is successful to enhance the photocatalytic activity under UV illumination [9][10][11][12]. Other options to limit recombination include the addition of other semiconductors to obtain heterojunctions [13][14][15][16] or the doping with cations [17][18][19][20]. Among the various candidates for TiO2 doping, copper is a promising choice.…”

Highly efficient visible light active Cu–ZnO/S-g-C3N4 nanocomposites for efficient photocatalytic degradation of organic pollutants

“…These organic pollutants need to be degraded to lower their impact on the environment because they tend to be toxic. [1][2][3] Primarily, water pollution demands focus urgently. Semiconductor photocatalysis can be an excellent solution to the severe problem of pollution.…”

Layered Nanocomposite 2D-TiO2 with Cu2O Nanoparticles as an Efficient Photocatalyst for 4-Chlorophenol Degradation and Hydrogen Evolution

“…From the studies reported, n-type TiO 2 coupling with p-type Cu 2 O exhibits good prospects for photocatalytic applications under visible light. For example, it was used in different applications such as the removal of organic and inorganic pollutants [20,[25][26][27][28], CO 2 reduction [29,30], H 2 evolution [14,[31][32][33], polyester textiles [34], as well as for antibacterial activity [35,36].…”