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以十六烷基三甲基溴化铵(CTAB)为Br源,采用水热法一步合成球状AgBr/Ag_3PO_4复合光催化剂,利用XRD、SEM、DRS及PL等对其结构和形貌进行分析,以水中微污染物甲基橙(MO)的降解评价AgBr/Ag_3PO_4复合物可见光催化活性。结果表明:产物是球状的AgBr/Ag_3PO_4复合物,AgBr/Ag_3PO_4复合物较纯相的AgBr或Ag_3PO_4都有更好的可见光催化活性,当Br/P的质量比为1∶10时所得复合物的催化活性最好,0.08g该复合物经过可见光催化降解MO(200mL,8mg/L)溶液10min后降解率达到95.52%,是相同条件下沉淀法产物降解率的1.5倍,循环降解3次后降解率达85.62%。
The photocatalyst spherical AgBr / Ag_3PO_4 was synthesized by hydrothermal method using cetyltrimethylammonium bromide (CTAB) as Br source. The structure and morphology of the composites were analyzed by XRD, SEM, DRS and PL. The photocatalytic activity of AgBr / Ag_3PO_4 composite was evaluated by degradation of methyl orange (MO). The results show that the product is spherical AgBr / Ag_3PO_4 complex, AgBr / Ag_3PO_4 complex is better than the pure phase of AgBr or Ag_3PO_4 have better visible photocatalytic activity, when the mass ratio of Br / P of the resulting composite The best catalytic activity was 0.08g. After degradation of MO (200mL, 8mg / L) for 10min, the degradation rate reached 95.52%, which was 1.5 times that of the precipitation under the same conditions. Rate of 85.62%.