采用逐次插层氧化石墨烯(GO)的方法成功制备了Ag/AgBr-TiO2/GO复合光催化剂,利用XRD、TEM、SEM对复合光催化剂进行了表征.以氙灯模拟太阳光,甲基橙为目标污染物,考察Ag/AgBr-TiO2/GO光催化降解甲基橙的效果.研究结果显示TiO2及Ag/AgBr纳米粒子较好地负载在GO表面上.在甲基橙为20 mg/L,催化剂为0.05 g的条件下,光源照射20 min后甲基橙的降解率即达到92 %以上.%Ag/AgBr-TiO2/GO photocatalyst was successfully was fabricated via a method of layer intercalation of GO, and this photocatalyst was characterized by XRD, TEM, and SEM. The photocatalytic performance of Ag/AgBr-TiO2/GO was investigated under Xenon arc light irradiation by using methyl orange as target pollutant. The results show that the TiO2and Ag/AgBr nanoparticles were well anchored on the surface of GO sheet. After being irradiated for 20 min, more than 92% of methyl orange dyes were photodegraded at the presence of 0.05 g Ag/AgBr-TiO2/GO photocatalyst.
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