Pharma-products are mostly single or multiple cyclic compounds. They pollute surface water and are persistent in the aquatic ecosystem. When irradiated by UV light, TiO₂ catalysts cleave or degrade organic contaminants in water. Removal of organics by photocatalysis results from a synergistic effect of adsorption and photocatalysis. Synthesis of catalysts by ultrasound (US) produces high surface area and porous solids. Here, we synthesized Mn-doped TiO₂ with a US-assisted sol-gel method. Compared to the classical synthesis, US increased the BET surface area from 83 m² g^-1 to 90 m² g^-1 in the Mn-TiO₂ sample and from 9.0 m² g^-1 to 53 m² g^-1 in the control TiO₂. Accordingly, acetaminophen and amoxicillin adsorption increased from 44% to 52%, and from 34% to 94% for the Mn-TiO₂ obtained in absence and presence of US, respectively. When in a mixture, the two drugs strongly compete for adsorption on TiO₂.

药品主要是单环或多环化合物。它们污染地表水，并在水生生态系统中持久存在。当用紫外线照射时，TiO ₂催化剂裂解或降解水中的有机污染物。通过光催化去除有机物的原因是吸附和光催化的协同作用。通过超声（US）合成催化剂可产生高表面积和多孔固体。在这里，我们用美国辅助溶胶-凝胶法合成了锰掺杂的TiO ₂。与经典合成方法相比，US将Mn-TiO ₂样品中的BET表面积从83 m ² g ^-1增大到90 m ² g ^-1，从9.0 m ² g增大了在对照TiO ₂中为^-1至53m ² g ^-1。因此，对于在不存在和存在US的情况下获得的Mn-TiO ₂，对乙酰氨基酚和阿莫西林的吸附分别从44％增加到52％，并且从34％增加到94％。当在混合物中时，两种药物强烈竞争在TiO ₂上的吸附。