Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, 130118, China.
College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou, 121001, China.
Environ Sci Pollut Res Int. 2023 Sep;30(43):96782-96794. doi: 10.1007/s11356-023-29312-z. Epub 2023 Aug 15.
In this study, the visible light-responsive catalysts FeO/BiWO were prepared and characterized by BET, SEM, EDS, XRD, XPS, and MPMS. The performances of five catalysts (0.05 Fe/Bi, 0.13 Fe/Bi, 0.17 Fe/Bi, 0.21 Fe/Bi, and 0.30 Fe/Bi) for photocatalytic degradation of bisphenol A under visible light (300-W Xe lamp) were compared. Among five catalysts, 0.17 Fe/Bi (the molar ratio of FeO to BiWO was 0.17) acquired the highest BPA photocatalytic removal of 90.2% at 120 min. With the synergistic effect between Vis/0.17 Fe/Bi and peroxymonosulfate (PMS), the BPA removal obtained was as high as 100% at 90 min ([BPA] = 100 mg/L, [0.17 Fe/Bi] = 1.25 g/L, [PMS] = 2.0 g/L, and T = 25 °C). After five times reused of 0.17 Fe/Bi, its removal of BPA dropped by 13.4% in presence of PMS, which demonstrated 0.17 Fe/Bi possessed relatively stable performance. High BPA degradation was attributed to the attacking effects of various oxide species (SO, •OH, h, O) generated in the FeO/BiWO/PMS system under the cooperation of photocatalyst FeO/BiWO and oxidizing agent PMS.
在这项研究中，制备了可见光响应催化剂 FeO/BiWO，并通过 BET、SEM、EDS、XRD、XPS 和 MPMS 进行了表征。比较了五种催化剂（0.05Fe/Bi、0.13Fe/Bi、0.17Fe/Bi、0.21Fe/Bi 和 0.3Fe/Bi）在可见光（300-W Xe 灯）下光催化降解双酚 A 的性能。在五种催化剂中，0.17Fe/Bi（FeO 与 BiWO 的摩尔比为 0.17）在 120 分钟内获得了最高的 BPA 光催化去除率，为 90.2%。在 Vis/0.17Fe/Bi 和过一硫酸盐（PMS）的协同作用下，在 90 分钟内，BPA 的去除率高达 100%（[BPA]=100mg/L，[0.17Fe/Bi]=1.25g/L，[PMS]=2.0g/L，T=25°C）。在五次重复使用 0.17Fe/Bi 后，在 PMS 存在下，其对 BPA 的去除率下降了 13.4%，这表明 0.17Fe/Bi 具有相对稳定的性能。高 BPA 降解归因于在光催化剂 FeO/BiWO 和氧化剂 PMS 的合作下，在 FeO/BiWO/PMS 体系中生成的各种氧化物物种（SO、•OH、h、O）的攻击效应。
