Metal oxide semiconductors for water remediation application | ||
| البحوث التطبيقية في العلوم والانسانيات | ||
| Volume 2, Issue 1, 2025, Pages 99-112 PDF (1.68 M) | ||
| Document Type: المقالة الأصلية | ||
| DOI: 10.21608/aash.2025.459894 | ||
| Authors | ||
| Hagar Ashraf Abdel Moneim; Hala Mahmoud Abdelsamee; Hayam Ramadan Abou El-Ela; Walaa Nabil Said; Yara Mohamed Abdel Moghny; Hanan Atef Soliman | ||
| Lecturer of physical chemistry Ain Shams University, Faculty of Education, Bachelor of Science and Education (preparatory and secondary), specializing in Chemistry | ||
| Abstract | ||
| The ZnO/CuO/ZnFe₂O₄ nanocomposite was successfully synthesized using the co-precipitation method and subjected to calcination at 800°C for 3 hours. The formation of the nanocomposite was confirmed through X-ray powder diffraction (XRD), while its optical properties were evaluated using UV-Vis diffuse reflectance spectroscopy. XRD analysis identified the presence of ZnO, ZnFe₂O₄, and CuO phases, which correspond to JCPDS cards 36–1451, 22–1012, and 45–0937, respectively, with an estimated crystal size of 30.58 nm. The UV-Vis diffuse reflectance spectrum demonstrated that the synthesized nanocomposite effectively absorbed both ultraviolet and visible light, exhibiting band gap energy of 1.87 eV. Furthermore, 0.1 g of the co-precipitated ZnO/CuO/ZnFe₂O₄ nanocomposite was applied in the photo-Fenton catalytic decolorization of a 50 mL remazol red solution (1.6 × 10⁻⁵ M) in the presence of 3% H₂O₂, achieving an apparent rate constant of 0.005 min⁻¹ and a decolorization efficiency of 79.5%. | ||
| Keywords | ||
| Photo-Fenton - ZnO - ZnFe₂O₄ - CuO; Co-precipitation - Remazol Red | ||
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