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采用水热法合成羟基磷灰石(HAP)/BiPO_4复合光催化剂。XRD结果表明HAP/BiPO_4复合催化剂由结晶良好的单斜相独居石BiPO_4与HAP组成。光催化降解试验结果表明,HAP/BiPO_4复合材料中当HAP与纳米BiPO_4的质量比为1∶0.1时,在模拟太阳光下可实现提高亚甲基蓝光催化降解效率的最大化。同时,活性自由基捕获实验证明体系中起主导作用的自由基为羟基自由基。
Hydrothermal synthesis of hydroxyapatite (HAP) / BiPO_4 composite photocatalyst. XRD results show that the HAP / BiPO 4 composite catalyst consists of well-crystallized monoclinic BiPO 4 and HAP. The results of photocatalytic degradation showed that the maximum photocatalytic degradation efficiency of methylene blue photocatalysts could be achieved under simulated sunlight when the mass ratio of HAP to BiPO 4 was 1: 0.1 in HAP / BiPO 4 composites. At the same time, the active radical trapping experiments show that the free radical which plays a leading role in the system is hydroxyl radical.