Dual Z-Scheme g-C3N4/GQDs/ZnIn2S4 Composite with Enhanced Photocatalytic Degradation of Xanthate under Visible Light Irradiation

Key Points

• This research aims to enhance the photocatalytic degradation of xanthate using a dual Z-scheme composite material.
• A ternary composite of g-C3N4, graphene quantum dots, and ZnIn2S4 was synthesized.
• Photocatalytic experiments were conducted under visible light irradiation.
• The efficiency of the composite was assessed by measuring the degradation rate of xanthate.
• The g-C3N4/GQDs/ZnIn2S4 composite resulted in over 90% degradation of xanthate after 150 minutes.
• Charge separation efficiency was significantly improved, leading to enhanced photocatalytic performance.