In this work, the use of Fe₃O₄ magnetic nanoparticles in the adsorption of rhodamine 6G solution was evaluated via absorbance and fluorescence spectroscopy using the UV-Vis spectrometer. The adsorption mechanism of rhodamine 6G on Fe₃O₄ was determined with respect to the adsorbent dosage (2.5–10 mg/L) and treatment time (0–150 min). The experimental data revealed that the fluorescence quantum yield of rhodamine 6G was inversely proportional to the percentage of dye removal. The highest efficiency of dye removal was obtained at 10 mg/L Fe₃O₄, and the adsorption capacity was about 150 mg/g, together with a reduced treatment time of 30 min, owing to active adsorption of Fe₃O₄. We believe that our study makes a significant contribution to the literature because Fe₃O₄ magnetic nanoparticles were found to be able to quench rhodamine 6G dye molecules, which will aid in eliminating toxic and hazardous pollutants from dye wastewater, which are otherwise detrimental to the environment and human health.

中文翻译：

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罗丹明6G染料溶液在Fe3O4磁性纳米粒子中的吸附特性对荧光量子产率的影响

在这项工作中，使用UV-Vis光谱仪通过吸光度和荧光光谱法评估了Fe ₃ O ₄磁性纳米粒子在若丹明6G溶液吸附中的使用。根据吸附剂量（2.5-10 mg / L）和处理时间（0-150分钟）确定了若丹明6G在Fe ₃ O ₄上的吸附机理。实验数据表明，若丹明6G的荧光量子产率与染料去除率成反比。当Fe ₃ O ₄为10 mg / L时，去除染料的效率最高，由于对Fe的主动吸附，吸附量约为150 mg / g，处理时间减少了30分钟。₃ O ₄。我们相信我们的研究为文献做出了重大贡献，因为发现Fe ₃ O ₄磁性纳米颗粒能够淬灭若丹明6G染料分子，这将有助于消除染料废水中的有毒有害污染物，否则会对污染物产生不利影响。环境与人类健康。