Preparation and photocatalytic performance of g-C3N4 composite photocatalysts loaded with rice husk ash

Inhalt:
At present, photocatalysis has become one of the effective methods to solve the energy crisis and environmental pollution. In response to the problem that graphite-phase carbon nitride (g-C3N4) has serious photogenerated carrier complexation during the photocatalytic degradation of pollutants, resulting in its poor photocatalytic activity, the biochar-modified g- C3N4 composite photocatalyst was constructed in the study using the biochar material rice husk ash and g-C3N4 as raw materials. The introduction of rice husk ash material can act as a good photogenerated electron transfer channel to promote the separation and transport of photogenerated carriers in the composites, and thus improve the efficiency of photocatalytic degradation of methyl orange MO as well as formaldehyde HCHO.