氮化碳改性SnO_2复合光催化剂的制备及性能
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摘要
以五水合四氯化锡、葡萄糖和尿素为原料,采用煅烧法及水热法制备合成了SnO_2/C_3N_4复合光催化剂。通过XRD、SEM、DRS等方法对合成的SnO_2/C_3N_4复合光催化剂进行表征。在可见光下,以罗丹明B为模拟污染物进行光催化降解实验,探讨了C_3N_4的引入对SnO_2/C_3N_4复合光催化剂的光催化性能的影响。结果表明,C_3N_4可以提高SnO_2在可见光下光催化性能,降解率由30%提高至70%。
Hydrogen chloride and calcination method were used to synthesize SnO_2/C_3N_4 composite photocatalyst using tin tetrachloride pentahydrate, glucose and urea as raw materials. The synthesized SnO_2/C_3N_4 composite photocatalyst was characterized by XRD, SEM and DRS. The photocatalytic degradation of SnO_2/C_3N_4 was investigated using rhodamine B as simulated pollutant under visible light, and the effect of C_3N_4 on the photocatalytic activity of SnO_2/C_3N_4 composite photocatalysts was discussed. The results indicated that the introduction of C_3N_4 could improve the photocatalytic activity of SnO_2 under visible light, of which degradation rate increased from 30% to 70%.
Hydrogen chloride and calcination method were used to synthesize SnO_2/C_3N_4 composite photocatalyst using tin tetrachloride pentahydrate, glucose and urea as raw materials. The synthesized SnO_2/C_3N_4 composite photocatalyst was characterized by XRD, SEM and DRS. The photocatalytic degradation of SnO_2/C_3N_4 was investigated using rhodamine B as simulated pollutant under visible light, and the effect of C_3N_4 on the photocatalytic activity of SnO_2/C_3N_4 composite photocatalysts was discussed. The results indicated that the introduction of C_3N_4 could improve the photocatalytic activity of SnO_2 under visible light, of which degradation rate increased from 30% to 70%.
引文
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