دانلود مقاله Synthesis of Nano Magnetic composites And Use of it For Dye Removal (AR 138) Form Aqueous Solutions
سال انتشار: ۱۳۸۷
محل انتشار: دومین کنگره بین المللی علوم و فناوری نانو
تعداد صفحات: ۲
Saeedeh Hashemian – Islamic Azad University, Yazd Brunch, Chemistry Department, Iran, Yazd
Rohola Behzadfar –
Dyes are widely used by textile industries to color their products. One of the major problems concerning textile wastewaters is color effluent. This wastewater contains a variety of organic compound and toxic substances, which are harmful to fish and other aquatic organism .Adsorption process is one of the effective methods with the advantages of high treatment efficiency and no harmful by-product to treat water . To achieve higher water treatment efficiency, the properties of adsorbent/catalyst are very important, including significant organic pollutant adsorption from solution and high catalytic activity for oxidation. Many researchers have investigated low-cost, locally available, biodegradable substitutes made from natural sources to remove dyes from wastewater [3,4]. There is a growing interest in inexpensive high surface area materials, especially metal oxides, and in their unique applications including adsorption and chemical catalysis . Powder metal oxides have relatively high surface area and catalytic activity . Recently, considerable attention has been focused on the application of magnetic separation technology to solve environmental problems. Examples of this technology are the use of magnetic CuFe2O4, MnO-Fe2O3 composite for the adsorption of organic dyes . The present work investigates the catalytic adsorption of Acid Red 138 (AR 138) dye with natural rice bran and synthesized nano magnetic composite of CuFe2O4 , COFe2O4 and MgFe2O4 in aqueous medium. The applied adsorbents were characterized by XRD, SEM and IR analyses.