Abstract Nitrogen and sulfur doped TiO2 was coated on polycarbonate (NS-TiO2@PC) by simple deposition method. The coated film was characterized by field emission scanning electron microscope and atomic force microscope. The photocatalytic activity of the NS-TiO2@PC was evaluated through degradation of ibuprofen and naproxen under visible light irradiation. Optimization results showed that the maximal degradation efficiencies of 83% and 100% were achieved for ibuprofen and naproxen, respectively. In addition, the possible photodegradation intermediates were identified by liquid chromatography–mass spectrometry. This study proved that the NS-TiO2@PC had excellent stability during photodegradation of pollutants and will have practical applications for environmental remediation.

中文翻译：

---

聚碳酸酯上 NS-TiO2 涂层上布洛芬和萘普生在水中的光催化降解：过程建模和中间体鉴定

摘要 采用简单沉积法将氮硫掺杂的TiO2包覆在聚碳酸酯(NS-TiO2@PC)上。用场发射扫描电子显微镜和原子力显微镜对涂膜进行了表征。通过在可见光照射下降解布洛芬和萘普生来评估 NS-TiO2@PC 的光催化活性。优化结果表明，布洛芬和萘普生的最大降解效率分别为 83% 和 100%。此外，通过液相色谱-质谱法鉴定了可能的光降解中间体。该研究证明NS-TiO2@PC在光降解污染物过程中具有优异的稳定性，将在环境修复中具有实际应用。