Photocatalysis has been applied for the elimination or reduction concentration of emerging pollutants in water. One of them, is the moxifloxacin (MOX), a fluoroquinolone that have a potential to develop resistant bacteria and have been present toxicity. The MOX achieves the environment due to inefficient wastewater treatment and incorrect disposal. Aiming to find a sustainable solution for photocatalytic process, compound parabolic concentrator (CPC) reactors have been proposed. In this sense, the present study investigates the application of CPC reactor for the degradation of MOX using sunlight and artificial light (UV-A lamp). In addition, the acute toxicity for L. sativa seeds and A. cepa bulbs, as well as the MOX cytotoxicity and genotoxicity for A. cepa root were investigated before and after treatment. The MOX degradation was around 65% using the sunlight and 44% with the artificial light. This difference was due to the kind of incident radiation (direct and diffuse), as well as the type of radiation (visible and/or ultraviolet) used in the processes. For L. sativa the acute toxicity was eliminated after MOX treatment using sunlight. A. cepa root length increased before the treatment and reduced significantly after it, what can indicate hormesis occurrence. MOX cytotoxicity was not observed. In contrast, genotoxicity assays showed high frequency of chromosomal aberrations for MOX solution, indicating elevated genotoxicity that was eliminated after solar treatment. The transformation products of MOX after CPC reactor solar treatment did not show cytotoxicity and genotoxicity in A. cepa and acute toxicity in L. Sativa. The results indicates that photocatalysis in a CPC solar reactor is efficient for MOX toxicity removal in the treated solutions.

光催化已应用于消除或降低水中新出现的污染物浓度。其中之一是莫西沙星 (MOX)，它是一种氟喹诺酮类药物，有可能发展出耐药细菌，并且已经存在毒性。由于废水处理效率低下和处置不当，MOX 实现了环保。为了找到光催化过程的可持续解决方案，已经提出了复合抛物面浓缩器 (CPC) 反应器。从这个意义上说，本研究调查了 CPC 反应器在使用阳光和人造光（UV-A 灯）降解 MOX 中的应用。此外，对苜蓿种子和A. cepa鳞茎的急性毒性，以及对A. cepa的 MOX 细胞毒性和遗传毒性根系在处理前后进行调查。使用阳光的 MOX 降解率约为 65%，使用人造光的 MOX 降解率约为 44%。这种差异是由于入射辐射的种类（直接和漫射）以及过程中使用的辐射类型（可见光和/或紫外线）造成的。对于 L. sativa，在使用阳光进行 MOX 处理后消除了急性毒性。香菇根长在处理前增加，处理后显着减少，说明发生了毒副作用。未观察到 MOX 细胞毒性。相比之下，基因毒性试验显示 MOX 溶液的染色体畸变频率很高，表明在日光处理后基因毒性升高。CPC 反应器太阳光处理后 MOX 的转化产物在A. cepa 中没有表现出细胞毒性和遗传毒性，在L. Sativa 中没有表现出急性毒性。结果表明，CPC 太阳能反应器中的光催化对于去除处理溶液中的 MOX 毒性是有效的。