The application of photocatalytic degradation process in the removal of methyl orange dye using magnetic nanocomposite from aqueous solutions
- سال انتشار: 1402
- محل انتشار: مجله چالش های نانو و مقیاس خرد در علوم و فناوری، دوره: 11، شماره: 1
- کد COI اختصاصی: JR_CHAL-11-1_005
- زبان مقاله: انگلیسی
- تعداد مشاهده: 79
نویسندگان
Sistan and Baluchestan
University of Birjand
چکیده
This research focuses on the removal of the dye methyl orange from aqueous solutions, a common environmental pollutant found in textile and dyeing industries. For this purpose, the efficiency of the photocatalytic degradation process using Fe۲O۳@ZnO core-shell nanocomposite was investigated in order to remove dye pollutant methyl orange from aqueous solutions using the response surface method (RSM) in the central composite design (CCD). Scanning electron microscopic (SEM), X-ray diffraction (XRD) and X-ray energy diffraction (EDX) analyzes were used to investigate the structural characteristics of the synthesized nanocomposite. Then, in order to investigate the efficiency of the synthesized nano photocatalyst in the process of photocatalytic degradation, the effect of important functional variables such as photocatalyst dose, pH, temperature and time were investigated to optimize the maximum dye removal. Based on the statistical results, the optimal efficiency of dye removal was ۴۹.۸۰% with a catalyst dose of ۳ g/L, pH = ۴, temperature ۴۴.۱۲ °C and irradiation time ۱۴۸.۳۴ min. Among the investigated parameters, temperature and pH had a significant effect on the photocatalytic degradation process. Also, the recovery of Fe۲O۳@ZnO photocatalyst during five consecutive cycles showed that the synthesized nanocomposite has good recovery capability for removing methyl orange from aqueous solutions. The experimental results indicate that the use of Fe۲O۳@ZnO nanoparticles has a high efficiency in removing dye pollutants and can also be an ideal method for treating dye-polluted wastewater, due to their excellent selective absorption and good recovery.کلیدواژه ها
Core-shell nanocomposite, methyl orange dye, photocatalytic degradation, optimization of surface response methodاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.