Removal of pharmaceuticals in secondary effluent using magnetic particle containing TiO_2-Zeolite composite catalyst under solar light

我们合成了二氧化钛-沸石复合材料，并将其用于去除二级出水中的磺胺二甲嘧啶(SMT)。在复合材料中，SMT被选择性地吸附在高硅Y型沸石上。结果表明，与单独使用二氧化钛相比，共存材料对二级出水中SMT的抑制作用减弱，复合材料对SMT的去除效果更好。我们还合成了含有TiO2-沸石复合催化剂的磁性粒子，并证实了磁体回收复合材料，足够的吸附容量相当于HSZ-385，以及在模拟太阳光下对SMT的光催化降解。通过这些结果，我们评价了所开发的复合材料对SMT的处理性能。

We synthesized the TiO_2-zeolite composites and applied them to the removal of sulfamethazine (SMT) in secondary effluent. The SMT was selectively adsorbed onto high-silica Y-type zeolite in the composites. Resultantly, the inhibitory effect of the coexisting materials was reduced, and the composites could remove SMT more effectively compared with TiO_2 alone in the secondary effluent. We also synthesized magnetic particle containing TiO_2-Zeolite composite catalyst, and confirmed the recovery of the composites by a magnet, sufficient adsorption capacity equivalent to the HSZ-385, and photocatalytic decomposition of SMT under simulated solar light. Through these results, we evaluated the treatment performance of SMT by the developed composites.