نوع مقاله : مقاله پژوهشی
نویسندگان
گروه شیمی، دانشکده علوم پایه، دانشگاه آزاد اسلامی واحد سنندج، سنندج، ایران، صندوق پستی: 6616935391
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study used thermochemical and Fe particle co-precipitation methods to prepare a magnetic-activated carbon composite. The hard nutshell of Baneh from the Oraman region of Kurdistan province was used as raw material. The structural properties of the prepared adsorbent were investigated using SEM, FT-IR, EDAX, BET, and VSM analysis methods. The SEM images clearly showed the formation of a porous adsorbent with porosity in the range of micro- and mesopores. The results of the FT-IR and EDAX analyses proved the presence of Fe in the absorbent structure. The specific surface area of the adsorbent before and after the deposition of iron particles was determined to be 229.6 and 179.37 m2/g, respectively. Under the optimized conditions, the removal amount of the investigated dyes from the model solutions was 91.2 and 98.6 % for acid blue 113 and acid orange 10, respectively. The kinetic study revealed that the pseudo-second-order model best fits the obtained adsorption data. In addition, the Freundlich model was the best model to describe the adsorption process.
کلیدواژهها [English]