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A Study of Methylene Blue Dye Interaction and Adsorption by Monolayer Graphene Oxide
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SYSNO ASEP 0561008 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A Study of Methylene Blue Dye Interaction and Adsorption by Monolayer Graphene Oxide Author(s) Ederer, J. (CZ)
Ecorchard, Petra (UACH-T) SAI, RID, ORCID
Šrámová Slušná, Michaela (UACH-T) SAI
Tolasz, Jakub (UACH-T) RID, ORCID, SAI
Smržová, Darina (UACH-T) ORCID, SAI, RID
Lupínková, S. (CZ)
Janoš, P. (CZ)Number of authors 7 Article number 7385541 Source Title Adsorption Science & Technology - ISSN 0263-6174
Roč. 2022, AUG (2022)Number of pages 16 s. Language eng - English Country US - United States Keywords heavy-metal ion ; anionic dyes ; activated carbon Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry R&D Projects LM2018124 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) TH04030285 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Method of publishing Open access Institutional support UACH-T - RVO:61388980 UT WOS 000852897000001 EID SCOPUS 85136707703 DOI 10.1155/2022/7385541 Annotation The graphene oxide (GO) interaction with methylene blue (MB) cationic dye was studied in an aqueous solution at different pH during MB adsorption. The mutual interaction of MB with GO surface was studied and evaluated by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). 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 GO surface functional groups and point of zero charge (PZC) were determined by acid-base titration. Suitability of zeta-potential measurement and acid-base titration method was briefly discussed. The quality of prepared GO was evaluated by Raman spectroscopy, XRD, and atomic force microscope (AFM). The experimental adsorption equilibrium data were analyzed using Langmuir, Langmuir-Freundlich, Freundlich, and Temkin isotherms. 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. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0333758
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