Synthesis and isotherm studies of nGO@nFe3O4 decorated with ZIF-8 for methylene blue removal
Year: 2025
Type: article
Abstract: As the use of dyes in various industries has increased, environmental pollution has also increased due to the discharge of their wastewater into the waters. Here, the nanographene oxide@nano Fe3O4 (nGO@nFe3O4) decorated with ZIF-8 was synthesized to remove methylene blue from aqueous solutions. Physicochemical, thermal, morphological, and magnetic properties of ZIF-8@nGO@nFe3O4 nanocomposite adsorbent were characterized by standard analyses. SEM analysis show a porous structure and superposition of the layered structure of nGO@nFe3O4 which ZIF-8 was dispersed uniformly on or between the layers. Fine synthesis of the adsorbent was also confirm by FTIR. Results demonstrate the suitable growth of ZIF-8 on the surface of nGO@nFe3O4. The adsorbent possessed the appropriate magnetic ability and easily separated by a magnet. In addition, isotherm models of Langmuir, Freundlich, Temkin, and Redlich-Peterson were studied. Results show that Langmuir isotherm is the better model for describing the adsorption process, so, the adsorbent possesses a homogeneous surface, and the adsorption process is monolayer.
Source: OICC Press Journals
Authors: Pezeshk, Kaveh, Khavarpour, Maryam, Vahdat, Seyed Mohammad, Baghbanian, Seyed Meysam, Esfahanian, Mehri
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7092665400
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