Work

Graphene oxide incorporated cellulose acetate beads for efficient removal of methylene blue dye; isotherms, kinetic, mechanism and co-existing ions studies

Year: 2022

Type: article

Abstract: In this investigation, new porous adsorbent beads were formulated via the incorporation of graphene oxide (GO) into cellulose acetate beads (CA) for the adsorptive removal of methylene blue (MB) dye. The experimental results signified that the adsorption of MB dye increased with the increase in the GO ratio from 10 to 25%. In addition, the adsorption process obeyed PSO kinetic model and Langmuir isotherm model with a maximum adsorption capacity reaching 369.85 mg/g. More importantly, it was proposed that the adsorption mechanism of MB dye onto GO@CA proceeded via electrostatic interactions, H-bonding, van der Waals forces, n-π and π -π interactions. Besides, the fabricated beads exhibited an excellent ability to recycle and reuse after five successive cycles. In addition, there was a high selectivity of GO@CA beads towards MB molecules in the presence of co-existing cations such as Fe 2+ , Zn 2+ , Cu 2+ and Ni 2+ .

Source: Journal of Porous Materials

DOI: 10.1007/s10934-022-01347-6

Authors: Abdelazeem S. Eltaweil, Eman M. Abd El-Monaem, Gehan M. El-Subruiti, Bassma M. Ali, Mona M. Abd El-Latif, Ahmed M. Omer

Institutions: Alexandria University, Arab Academy for Science, Technology, and Maritime Transport, City of Scientific Research and Technological Applications

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: hybrid

Estimated APC paid: $3,190