Citation:

Al-Anazi, A., W. Abdelraheem, K. Scheckel, M. Nadagouda, K. O'Shea, AND D. Dionysiou. Novel Franklinite-like Synthetic Zinc-Ferrite Redox Nanomaterial: synthesis and evaluation for Degradation of Diclofenac in Water. APPLIED CATALYSIS B: ENVIRONMENTAL. Elsevier Science Ltd, New York, NY, 275:119098, (2020). https://doi.org/10.1016/j.apcatb.2020.119098

Impact/Purpose:

A novel redox technology based on synthetic franklinite-like zinc-ferrite nanomaterial with magnetic properties and redox nature for potential use in water treatment. The redox activity of nanoparticles was tested for degradation of diclofenac (DCF) pharmaceutical in water, without added external oxidant and under dark experimental conditions.

Description:

The current study investigates a novel redox technology based on synthetic franklinite-like zinc-ferrite nanomaterial with magnetic properties and redox nature for potential use in water treatment. Physicochemical characterization revealed the nanoscale size and AB2O4 spinel configuration of the zinc-ferrite nanomaterial. The redox activity of nanoparticles was tested for degradation of diclofenac (DCF) pharmaceutical in water, without added external oxidant and under dark experimental conditions. Results revealed ~90% degradation in diclofenac (10 µM) within 2 min of reaction using 0.17 g/L Zn1.0Fe2.0O4. Degradation of DCF was due to chemical reduction by surface electrons on zinc-ferrite and oxidation by oxygen-based radicals. Three byproducts from reduction route and eight from oxidation pathways were identified in the reaction system. Reaction pathways were suggested based on the identified byproducts. Results demonstrated the magnetic zinc-ferrite is a standalone technology that has a great promise for rapid degradation of organic contaminants, especially DCF in water.

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