Abstract：
Environmental pollution is increasing worldwide due to population and industrialization. Among the various forms of pollution, water pollution poses a significant challenge in contemporary times. In this study, we synthesized CuO-decorated montmorillonite K30 (MK30) nanosheets via a simple ultrasonication technique. The structural, morphological, compositional, and optical properties of the synthesized nanocomposites were evaluated using advanced instrumentation techniques. The morphology of CuO was cubic and cubic CuO evenly designed on the MK30, which was proved by Field Emission Scanning Electron Microscopy (FESEM). The adsorption photocatalytic activity of the synthesized cubic CuO/MK30 composites was examined through the degradation of MB under visible light irradiation. The apparent reaction rate constant of 20% CuO/MK30 was 12.5 folds higher than that of CuO. These conditions included a catalyst dosage ranging from 5 to 15 mg, a pH level ranging from to 3-11, and a pollutant concentration ranging from 5 to 20 mg/L. The optimal conditions for MB dye removal were determined using response surface methodology (RSM). A scavenger study of the composite was conducted and verified that •O2- and •OH radicals play an important role in the degradation process. This investigation addressed the process of adsorption and potential removal pathways, with a particular emphasis on the role of functional groups. The environmentally friendly CuO/MK30 nanocomposites exhibited potential as photocatalysts for efficiently absorbing and degrading MB dye and TC drug pollutants. They represent promising candidates for the treatment of industrial wastewater, aiming to mitigate the environmental threats posed by organic pollutants.
摘要：
由于人口和工业化，环境污染在世界范围内日益严重。在各种形式的污染中，水污染在当代构成了重大挑战。在这项研究中,我们通过简单的超声技术合成了CuO修饰的蒙脱石K30（MK30）纳米片。结构,形态学,组成,使用先进的仪器技术评估合成的纳米复合材料的光学性能。通过场发射扫描电子显微镜（FESEM）证明了在MK30上均匀设计的CuO形貌为立方和立方CuO。通过在可见光照射下降解MB，研究了合成的立方CuO/MK30复合材料的吸附光催化活性。20%CuO/MK30的表观反应速率常数比CuO高12.5倍。这些条件包括5至15mg的催化剂剂量，pH值范围为3-11，污染物浓度范围为5-20mg/L。使用响应面法（RSM）确定了去除MB染料的最佳条件。对复合材料进行了清除剂研究，并验证了•O2-和•OH自由基在降解过程中起着重要作用。这项研究探讨了吸附过程和潜在的去除途径，特别强调功能组的作用。环境友好的CuO/MK30纳米复合材料具有作为有效吸收和降解MB染料和TC药物污染物的光催化剂的潜力。它们代表了工业废水处理的有希望的候选人，旨在减轻有机污染物对环境的威胁。
