نوع مقاله : مقاله پژوهشی
نویسندگان
1 مرکز تحقیقات مواد پیشرفته، دانشکده مهندسی مواد، واحد نجفآباد، دانشگاه آزاد اسلامی، نجفآباد، ایران
2 گروه مهندسی ایمنی بهداشت و محیط زیست، واحد نجفآباد، دانشگاه آزاد اسلامی، نجفآباد، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Water pollution is one of the recent problems of societies. In recent years, there has been a lot of focus on finding new ways to purify water. In addition, the usual and old purification methods cannot effectively remove new chemical pollutants from water. Therefore, these pollutants inflict lots of problems including different diseases. Thus, new methods and materials that can effectively remove these chemicals from water are important. New absorbents have been one of the hot topics for researchers in recent years. In this research, alumina particles were coated with zinc oxide via hydrothermal method. The produced nanocomposites were utilized to remove organic pollutants from water. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Zeta potential were used to characterize the nanocomposites. X-ray diffraction results showed that an alumina-zinc oxide nanocomposite was well formed. The formation reactions of nanostructured zinc oxide on the alumina were also discussed. Microstructural studies showed that the size of zinc oxide particles was about 45 nm and zinc oxide particles were composed of nano-size layers. The adsorption results exhibited that the dye removal efficiency of the nanocomposite was significantly increased compared to the pure single-phase alumina. 98% of the methyl orange was removed by the nanocomposite sample within 15 minutes.
کلیدواژهها [English]