Bayode Ajibola Abiodun, Osti Andrea, Glisenti Antonella
Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University, P.M.B. 230, Ede, 232101, Nigeria.
Department of Chemical Sciences, University of Padova, Via F. Marzolo, 1, 35131, Padua, Italy.
BMC Chem. 2025 Jul 4;19(1):203. doi: 10.1186/s13065-025-01578-z.
Investigating the interaction between tribocatalysis and photocatalysis using the flexoelectric catalyst shows promising potential for water treatment. However, there is a lack of research on the combined effects of photocatalysis and tribocatalysis, especially when utilizing the flexoelectric catalyst. In this research, we synthesized the LaMnO modified with acid-activated porous Graphitic carbon nitride (APCNS) (LaMnO@APCNS). We examined it using various methods such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The tribocatalytic and tribo-photocatalytic performance of the LaMnO@APCNS for degrading Rhodamine blue (RhB) and Methylene blue (MB) was explored. The results showed the PTFE magnetic bar, grinding wheel and LaMnO@APCNS achieved degradation rates of 83.33% for RhB and 84.78% for MB within 360 min. When combining tribocatalysis and photocatalysis, the efficiency increased to 100% for RhB and 95.5% for MB within 90 min. Experimental evidence confirms the significant synergistic effects of combining both techniques. The scavenger test revealed that hydroxyl and superoxide radicals played a major role in degrading both dyes. The performance of the LaMnO@APCNS remained consistent through the fifth cycle, for both dyes. This demonstrates effectiveness and underscores the potential practical and environmentally friendly aspects of tribo-photocatalytic techniques for purifying water.
利用挠曲电催化剂研究摩擦催化与光催化之间的相互作用，在水处理方面显示出有前景的潜力。然而，关于光催化和摩擦催化的联合效应，尤其是在使用挠曲电催化剂时，缺乏相关研究。在本研究中，我们合成了用酸活化的多孔石墨相氮化碳（APCNS）改性的LaMnO（LaMnO@APCNS）。我们使用傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）和扫描电子显微镜（SEM）等各种方法对其进行了研究。探索了LaMnO@APCNS对罗丹明B（RhB）和亚甲基蓝（MB）的摩擦催化和摩擦光催化性能。结果表明，PTFE磁棒、砂轮和LaMnO@APCNS在360分钟内对RhB的降解率达到83.33%，对MB的降解率达到84.78%。当将摩擦催化和光催化结合时，在90分钟内，RhB的效率提高到100%，MB的效率提高到95.5%。实验证据证实了这两种技术结合的显著协同效应。清除剂测试表明，羟基和超氧自由基在降解两种染料中起主要作用。对于两种染料，LaMnO@APCNS在第五个循环中的性能保持一致。这证明了其有效性，并强调了摩擦光催化技术在净化水方面潜在的实际应用和环境友好性。
