Synthesis of g-C3N4/C induced by stem template and photocatalytic degradation of tetracycline
To solve the great harm and potential threat caused by antibiotics left in the environment,Artemisic stalk(high cellulose content)and bean bud(low cellulose content)stalk were used as biological templates to synthesis g-C3N4/C photocatalytic materials.The uneven structure of the stem surface was used as a micro-reac-tion space to control the amount of local dicyandiamide and as a crystalline nucleus to induce the synthesis of sheet graphite phase carbon nitride(g-C3N4)and the photocatalytic degradation of tetracycline was investigated.The material was characterized by X-ray diffraction,scanning electron microscopy,transmission electron mi-croscopy and fluorescence spectroscopy.The results showed that g-C3N4 was successfully loaded on the surface of biochar matrix,and the dispersion of g-C3N4 on biochar matrix is higher and the agglomeration is lower.Un-der simulated visible light irradiation for 30 min,g-C3N4/C synthesized at the mass ratio of stem template to di-cyandiamide 1∶2 showed highest degradation efficiency for tetracycline(TC),which was 31.7％and 26.1％,re-spectively.After four cycles,the TC degradation efficiency of ACN-2 decreased from 31.7％to 27.2％,indica-ting the good photocatalytic cycle stability of the material.
NETL
NSTL
万方数据
