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ORIGINAL RESEARCH article

Front. Chem.
Sec. Nanoscience
Volume 12 - 2024 | doi: 10.3389/fchem.2024.1484610

Nitrogen-doped reduced graphene oxide for high efficient adsorption of methylene blue

Provisionally accepted
Maoping Kang Maoping Kang Yongli Pei Yongli Pei Ying Zhang Ying Zhang Lihong Su Lihong Su Yuxiang Li Yuxiang Li Hongyu Wang Hongyu Wang *
  • Shanxi Institute of Energey, Jinzhong, China

The final, formatted version of the article will be published soon.

    A highly efficient and widely applicable adsorbent for the removal of methylene blue (MB) was created using nitrogen-doped and reduced graphene oxide (NRGO). The effects of NRGO mass, pH, contact time, and the initial MB concentration on the adsorption properties of MB onto NRGO were investigated. The results showed that the adsorption behavior remained stable within the pH range of 2.0 to 10.0, and the adsorption process gradually reached equilibrium after 24 hours. Additionally, the adsorption kinetics and adsorption isotherms were discussed to propose a theoretical adsorption mechanism. Meanwhile, some characterizations including Scanning Electron Microscopy, Energy Disperse X-ray Spectroscopy, X-ray Photoelectron Spectroscopy, X-ray Powder Diffraction, Fourier Transform Infrared Spectroscopy, etc. were used to explore potential adsorption mechanism, which indicated the physisorption caused by π-π bonds was the main adsorption mechanism. NRGO exhibits efficient MB absorption and holds significant potential application for the wastewater treatment.

    Keywords: Nitrogen-doped reduced graphene oxide (NRGO), Methylene blue (MB), adsorption mechanism, Potential application, wastewater treatment

    Received: 22 Aug 2024; Accepted: 16 Dec 2024.

    Copyright: © 2024 Kang, Pei, Zhang, Su, Li and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Hongyu Wang, Shanxi Institute of Energey, Jinzhong, China

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