A study on the interaction between molybdenum disulfide and rhodamine B by spectroscopic methods

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• 作者：Jyoti Shakya ; Harekrushna Sahoo ; Tanuja Mohanty
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：52
• 期：7
• 页码：3831-3840
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics;
• 出版者：Springer US
• ISSN：1573-4803
• 卷排序：52

文摘

This work reports the confluence of static and dynamic fluorescence quenching of rhodamine B (RhB) by chemically exfoliated molybdenum disulfide (MoS₂) nanosheets. Both steady state and time-resolved fluorescence quenching measurements were carried out to elucidate the process of energy transfer from RhB to MoS₂. The interactive forces investigated through evaluation of thermodynamic parameters from temperature dependent fluorescence measurements are found to be hydrophobic in nature. The negative value of Gibbs free energy (∆G) indicates spontaneity of the adsorption process of RhB–MoS₂ system. The binding affinity of RhB–MoS₂ system is also investigated using UV/Vis spectrophotometer.