The growth of the textile industry is responsible for the increasing pollution, mainly in the water environment. The GO maximum adsorption capacity increases with higher pH, that is ascribed to the facile interaction of negatively charged GO with positively charged MB structure. The experimental adsorption equilibrium data were analyzed using Langmuir, Langmuir-Freundlich, Freundlich, and Temkin isotherms. The quality of prepared GO was evaluated by Raman spectroscopy, XRD, and atomic force microscope (AFM). Suitability of zeta-potential measurement and acid-base titration method was briefly discussed. The GO surface functional groups and point of zero charge (PZC) were determined by acid-base titration. The π- π and electrostatic interaction of MB with GO surface are the main types of interactions, and the XRD data show the monomeric arrangement of MB cation with GO. The mutual interaction of MB with GO surface was studied and evaluated by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.The graphene oxide (GO) interaction with methylene blue (MB) cationic dye was studied in an aqueous solution at different pH during MB adsorption. Original Assignee Calgon Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Fink Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Application number EP84306814A Other languages German ( de) Google Patents Méthode de détermination colorimétrique des polycarboxylates et des sulfonates dans des systèmes aqueuxĭownload PDF Info Publication number EP0144130B1 EP0144130B1 EP84306814A EP84306814A EP0144130B1 EP 0144130 B1 EP0144130 B1 EP 0144130B1 EP 84306814 A EP84306814 A EP 84306814A EP 84306814 A EP84306814 A EP 84306814A EP 0144130 B1 EP0144130 B1 EP 0144130B1 Authority EP European Patent Office Prior art keywords dye absorbency concentration acid groups sample portion Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
Google Patents EP0144130B1 - Méthode de détermination colorimétrique des polycarboxylates et des sulfonates dans des systèmes aqueux
EP0144130B1 - Méthode de détermination colorimétrique des polycarboxylates et des sulfonates dans des systèmes aqueux
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