Quantification of Adsorption of Azo Dye Molecules on Graphene Oxide Using Optical Spectroscopy

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• 作者：Raghvendra Pratap Chaudhary ; Pranav Bhagwan Pawar ; Kumar Vaibhav ; Sumit Saxena…
• 刊名：JOM
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：69
• 期：2
• 页码：236-240
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Engineering, general; Chemistry/Food Science, general; Physics, general; Environment, general; Earth Sciences, general;
• 出版者：Springer US
• ISSN：1543-1851
• 卷排序：69

文摘

The presence of azo dye molecules in effluents is a source of water pollution and an environmental hazard. Thus, it is very important to separate out such dye molecules. We have investigated the use of graphene oxide (GO) for the purification of dye-contaminated water. The adsorption efficiency of GO in the degradation of azo dye molecules and the interaction mechanism has been estimated using Ultra Violet-Visible absorption spectroscopy. The charge on the dye molecules along with steric hinderance due to their molecular structure is understood to be detrimental in the adsorption and removal of such dyes. Spectroscopic studies suggest that GO can be used as a potential candidate for efficient removal of cationic azo-dye molecules by adsorption.