ArticleACS omega2026
Sustainable Voltammetric Sensors Based on Rice-Husk-Derived Biosilica for Rapid, Low-Cost, and Selective Determination of Diuron in Water.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Diuron is a widely used herbicide that frequently contaminates soils and surface waters, posing risks to aquatic ecosystems and human health. Reliable and selective monitoring of diuron in environmental waters is therefore essential. In this work, we design carbon paste electrodes modified with rice-husk-derived biosilica and mesoporous MCM-41 as sustainable platforms for the voltammetric determination of diuron, and we benchmark their performance against commercial silica modifiers. Conventional carbon paste sensors (CPS) offer a versatile electroanalytical platform but often exhibit sluggish electron transfer and moderate sensitivity. The incorporation of biomass-derived silica promotes diuron preconcentration at the electrode-solution interface and markedly enhances the oxidation current. CPS containing 10% rice husk biosilica (rice husk
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