Modifying Superparamagnetic Iron Oxide Nanoparticles as Methylene Blue Adsorbents: A Review

Author:

Doan Linh123ORCID

Affiliation:

1. Department of Chemical Engineering, International University—Vietnam National University, Ho Chi Minh City 70000, Vietnam

2. School of Chemical and Environmental Engineering, International University—Vietnam National University, Ho Chi Minh City 70000, Vietnam

3. Nanomaterials Engineering Research & Development (NERD) Laboratory, International University—Vietnam National University, Ho Chi Minh City 70000, Vietnam

Abstract

Methylene blue (MB) is a hazardous chemical that is widely found in wastewater, and its removal is critical. One of the most common methods to remove MB is adsorption. To enhance the adsorption process, magnetic adsorbents, particularly those based on superparamagnetic iron oxide nanoparticles (SPION), play a vital role. This study focuses on comparing recent novel SPION-based MB adsorbents and how to acquire the critical parameters needed to evaluate the adsorption and desorption mechanisms, including isotherms, kinetics, and thermodynamic properties. Moreover, the review article also discusses the future aspects of these adsorbents.

Publisher

MDPI AG

Subject

General Energy,General Engineering,General Chemical Engineering

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