Dr Mohammed Mahmoud Youssif

Citation:

[Anonymous] (2025).  Silica/magnetite core-shell nanostructures as pH-dependent quartz crystal microbalance sensors for nickel ion detection in aqueous solutions. Physica Scripta. 100, 035961. copy at www.tinyurl.com/2xthckpx

Date Published:

Abstract:

Herein, we report the controlled formation of silica/magnetite core–shell nanostructures and their potential utilization as sensors for the real-time detection of nickel ions with different concentrations in aqueous solutions. Nickel ions were presented in this work as example of contaminants. When coupled with quartz crystal microbalance (QCM) technology, the prepared core–shell nanostructures were found to exhibit high sensitivity and a prompt response toward the presence of nickel ions in an aqueous environment. The robust structure of the silica core and the increased surface area provided by the magnetite shell enhance the adsorption of metal ions. The pH of the solution was found to have a strong impact on the sensing performance of the core–shell structure. Optimal sensor performance was observed at neutral pH, demonstrating the potential of this system for continuous environmental monitoring of nickel ions pollutants.

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