Department of Environmental and Safety Engineering, Ajou University, Suwon, 16499, Republic of Korea.
Environmental Functional Materials and Water Treatment Laboratory, Seoul National University, Republic of Korea.
Chemosphere. 2021 Aug;276:130218. doi: 10.1016/j.chemosphere.2021.130218. Epub 2021 Mar 13.
This study investigated the applicability of waste antivirus copper film (CF) as a Fenton-like catalyst. The reaction activity of HO and CF in combination was significantly enhanced by ultrasound (US) irradiation, and the synergy factor calculated from bisphenol A (BPA) degradation using CF-HO-US was 9.64 compare to that of dual factors. Photoluminescence analyses were conducted to compare the generation of hydroxyl radicals during both processes. In this sono-Fenton-like process, BPA degradation was affected by solution pH, temperature, ultrasound power, CF size, HO dose, and initial BPA concentration. The BPA degradation curves showed an induction period (first stage) and a rapid degradation period (second stage). Process efficiency was totally and partially enhanced in the presence of chloride and carbonate ions, respectively. Chemical scavenger tests showed that both free and surface-bound hydroxyl radicals participate in BPA degradation under the sono-Fenton-like process using CF. The functional groups and copper crystals on the CF surface remained unchanged after five consecutive reuses, and the BPA degradation efficiency of CF was maintained over 80% during the reuse processes as a sono-Fenton-like catalyst.
本研究考察了废杀毒铜膜 (CF) 作为类芬顿催化剂的适用性。超声 (US) 辐射显著增强了 HO 和 CF 的反应活性，并且使用 CF-HO-US 从双酚 A (BPA) 降解中计算出的协同因子与双因素相比为 9.64。进行了光致发光分析以比较两种过程中羟基自由基的生成。在该超声类芬顿过程中，溶液 pH 值、温度、超声功率、CF 尺寸、HO 剂量和初始 BPA 浓度都会影响 BPA 的降解。BPA 降解曲线显示出诱导期（第一阶段）和快速降解期（第二阶段）。在存在氯离子和碳酸根离子的情况下，处理效率分别得到了完全和部分提高。化学清除剂测试表明，在使用 CF 的超声类芬顿过程中，游离和表面结合的羟基自由基都参与了 BPA 的降解。CF 表面的官能团和铜晶体在连续五次重复使用后保持不变，并且 CF 作为超声类芬顿催化剂的 BPA 降解效率在重复使用过程中保持在 80%以上。
