سنتز، مشخصه يابي و كاربرد فوتوكاتاليستي نانوكامپوزيت ZrO2/GO/CuS براي تخريب رنگ‌هاي متيلن بلو و متيل اورانژ تحت تابش نور خورشيد

Knowledge expansion an‎d its practical application by humans have led to an increased reliance on natural resources an‎d industrial products. This trend has resulted in a rise in harmful environmental pollutants that can pose irreparable risks. Dyes are considered one of the major pollutants in water sources. Given the growing deman‎d for clean water an‎d the limited availability of treatable water sources, their purification has become one of the most critical current issues. Advanced oxidation processes are among the most efficient methods for removing organic pollutants. Therefore, designing the most efficient, economical, an‎d least harmful catalyst for pollutant removal is highly regarded. In this study, the ternary nanocomposite ZrO2/GO/ CuS was synthesized through a two-step process. Its chemical, physical, structural, optical, an‎d morphological properties were identified using XRD, TEM, DRS, FE-SEM, EDX, MAP, BJH an‎d BET methods. The photocatalytic activity of the ZrO2/GO/ CuS nanocomposite for methylene blue an‎d methyl orange dyes was eva‎luated under sunlight. The results showed that under specific conditions: 5 mg of ZrO2/GO/ CuS nanocomposite, 10 mg/L concentration, pH = 10, an‎d an irradiation time of 20 minutes 97% of methylene blue dye could be removed within 33 minutes. At pH = 3, 99% of methyl orange dye could be removed. Furthermore, a mixture of both methylene blue an‎d methyl orange dyes was removed by 98% within a 45 minute period. The reusability an‎d reaction kinetics were also investigated. After three cycles of reuse, the removal efficiency for methylene blue an‎d methyl orange dyes was approximately 90% an‎d 91%, respectively, indicating successful synthesis.

علي حسين كيانفر

محمد ديناري

حسن حداد زاده , غلامحسين محمدنژاد شيرازي