Faculty Publications

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Scholarly Publications by Integral Academia

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    ZnO-BASED NANOCOMPOSITES AS EFFICIENT PHOTOCATALYSTS FOR DYE- CONTAMINATED WATER TREATMENT
    (Zenodo, 2026) Ekhlakh Veg, Nashra Fatima, Tahmeena Khan
    Industrial wastewater containing synthetic dyes poses a major environmental and health concern because these pollutants are toxic, stable, and difficult to remove using conventional treatment methods. Among various photocatalysts, zinc oxide (ZnO) is extensively studied due to its low cost, chemical stability, non-toxic nature, and strong oxidative potential. Nevertheless, its practical application is restricted by a wide band gap and fast recombination of photo-generated charge carriers, which reduce activity under visible light. Recent progress shows that forming ZnO- based nanocomposites effectively overcomes these limitations by improving light absorption, suppressing charge recombination, and increasing reactive surface sites.
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    Visible-Light-Induced Photocatalytic Degradation of Fast Green FCF and Orange II Dye by Yb2O3 Nanoparticles †
    (MDPI, 2026) Nashra Fatima, Ekhlakh Veg, Tahmeena Khan
    The quest for efficient photocatalytic materials for eliminating synthetic dyes like Orange II Sodium Salt and Fast Green FCF (For Coloring Food) has been spurred by the mounting environmental problems associated with these dyes. Due to their excellent electrical characteristics, thermal stability, and potential to reduce electron–hole recombination, ytterbium oxide (Yb2O3) and other rare-earth metal oxides are gaining popularity. This study synthesized Yb2O3 nanoparticles and assessed their photocatalytic activity when exposed to visible light. Significant degradation efficiencies were revealed by the spectrophotometric analysis, suggesting that Yb2O3 is an effective nanocatalyst for dye remediation applications. The results demonstrate how rare-earth-based nanomaterials can improve environmentally friendly and sustainable wastewater treatment methods, supporting ongoing environmental cleanup initiatives.