Department of Chemical Engineering, Jami Institute of Technology, Isfahan, Iran.
Department of Chemical Engineering, Jami Institute of Technology, Isfahan, Iran; Alavi Educational and Cultural Complex, Shiraz, Iran.
Environ Res. 2023 Jul 15;229:115915. doi: 10.1016/j.envres.2023.115915. Epub 2023 Apr 17.
Pharmaceutical compounds are among the environmental contaminants that cause pollution of water resources and thereby threaten ecosystem services and the environmental health of the past decades. Antibiotics are categorized as emerging pollutants due to their persistence in the environment that are difficult to remove by conventional wastewater treatment. Ceftriaxone is one of the multiple antibiotics whose removal from wastewater has not been fully investigated. In this study, TiO/MgO (5% MgO) the efficiency of photocatalyst nanoparticles in removing ceftriaxone was analyzed by XRD, FTIR, UV-Vis, BET, EDS, and FESEM. The results were compared with UVC, TiO/UVC, and HO/UVC photolysis processes to evaluate the effectiveness of the selected methods. Based on these results, the highest removal efficiency of ceftriaxone from synthetic wastewater was 93.7% at the concentration of 400 mg/L using TiO/MgO nano photocatalyst with an HRT of 120 min. This study confirmed that TiO/MgO photocatalyst nanoparticles efficiently removed ceftriaxone from wastewater. Future studies should focus on the optimization of reactor conditions and improvements of the reactor design to obtain higher removal of ceftriaxone from wastewater.
药物化合物是造成水资源污染的环境污染物之一，它们威胁着生态系统服务和过去几十年的环境健康。抗生素由于在环境中难以去除而被归类为新兴污染物。头孢曲松是一种抗生素，其从废水中的去除尚未得到充分研究。在这项研究中，通过 XRD、FTIR、UV-Vis、BET、EDS 和 FESEM 分析了 TiO/MgO（5%MgO）纳米光催化剂在去除头孢曲松方面的效率。结果与 UVC、TiO/UVC 和 HO/UVC 光解过程进行了比较，以评估所选方法的有效性。根据这些结果，在浓度为 400mg/L 的条件下，使用 TiO/MgO 纳米光催化剂，HRT 为 120min，头孢曲松在合成废水中的去除效率最高可达 93.7%。本研究证实了 TiO/MgO 光催化剂纳米粒子能够有效地从废水中去除头孢曲松。未来的研究应侧重于优化反应器条件和改进反应器设计，以从废水中获得更高的头孢曲松去除率。
