Kowalczyk Agata, Zgardzińska Bożena, Osipiuk Karol, Jędruchniewicz Katarzyna, Tyszczuk-Rotko Katarzyna, Goździuk Magdalena, Wang Haitao, Czech Bożena
Institute of Physics, Maria Curie-Sklodowska University, 20-031 Lublin, Poland.
Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland.
Materials (Basel). 2023 Jan 27;16(3):1094. doi: 10.3390/ma16031094.
Water is the most important life-giving resource on earth. Nowadays, intensive growth of the world population has resulted in increased water consumption and the production of wastewater. Additionally, the presence of pharmaceuticals in treated conventional wastewater or even in the environment is strictly indicating that present techniques of wastewater treatment are not efficient enough and are not designed to remove such pollutants. Scarce water resources in the world are the main driving force for the innovation of novel techniques of water and wastewater treatment. Photocatalysis, as one of the advanced oxidation processes, enables the transformation of recalcitrant and toxic pollutants into CO, water, and inorganic salts. In the present paper, the photocatalytic oxidation of β-blockers-metoprolol and propranolol-are described. For photocatalytic oxidation, novel TiO photocatalysts modified with biochar were used. Photocatalysts were prepared by sol-gel method and the effect of photocatalysts type, presence of inorganic ions, dissolved organic matter, and different water matrix was established. The results indicate that using only the decrease in the tested pollutant concentration is not effective enough in establishing the treatment method's safety. There is a need to use additional testing such as ecotoxicity tests; however, the key parameter is the properly chosen tested organism.
水是地球上最重要的赋予生命的资源。如今，世界人口的密集增长导致了用水量的增加和废水的产生。此外，经过处理的传统废水中甚至环境中存在药物，这严格表明目前的废水处理技术效率不够高，且并非设计用于去除此类污染物。世界上稀缺的水资源是创新水和废水处理新技术的主要驱动力。光催化作为高级氧化过程之一，能够将难降解和有毒污染物转化为二氧化碳、水和无机盐。在本文中，描述了β受体阻滞剂——美托洛尔和普萘洛尔的光催化氧化。对于光催化氧化，使用了用生物炭改性的新型二氧化钛光催化剂。光催化剂通过溶胶 - 凝胶法制备，并确定了光催化剂类型、无机离子的存在、溶解有机物和不同水基质的影响。结果表明，仅使用测试污染物浓度的降低来确定处理方法的安全性是不够有效的。需要使用额外的测试，如生态毒性测试；然而，关键参数是正确选择测试生物。
