What is it about?
It is about the electrochemical sensor for the detection of Rose Bengal Dye and its Removal of from Wastewater by adsorption method. It demonstrates picomolar-level electrochemical detection of Rose Bengal using Fe- doped ZnO/MWCNT-modified glassy carbon electrode. Moreover, it presents BiOCl nanoparticles for the effective removal of Rose Bengal from wastewater.
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Why is it important?
It is important for water purification. Rose bengal (RB), a synthetic xanthene dye widely used in cosmetics, textiles, pharmaceuticals, and the food industry, poses significant environmental and health hazards due to its carcinogenic nature and toxic metabolic by-products. Prolonged exposure to RB has been linked to severe ocular effects and damage to vital organs such as the liver, kidneys, and lungs. Furthermore, its oxidative transformation in aquatic environments leads to the formation of harmful by-products, threatening marine ecosystems and compromising drinking water quality. Given its persistence and toxicity, efficient detection and removal strategies for RB are crucial.
Perspectives
This work presents a dual-functional approach for the detection and removal of RB. A modified glassy carbon electrode incorporating Fe-doped ZnO nanoparticles and MWCNTs was developed for highly sensitive voltammetric detection of RB at picomolar concentrations. Additionally, the removal of RB was carried out using BiOCl NPs which were synthesized via a wet chemical coprecipitation method. The BiOCl NPs enabled highly efficient wastewater purification by facilitating near-complete adsorption of RB under optimized conditions.
Dr Afzal Shah
Quaid-i-Azam University, Iislamabad
Read the Original
This page is a summary of: Electrocatalytic detection and adsorptive removal of rose bengal dye from wastewater, Discover Electrochemistry, August 2025, Springer Science + Business Media,
DOI: 10.1007/s44373-025-00044-8.
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