@article { author = {Hosseini Asl, Seyed Mostafa and Masomi, mojtaba and Tajbakhsh, Mahmood}, title = {Removal of Benzene, Toluene and m-Xylene from aqueous solution by Fe-ZSM-5 nano-zeolite synthesized from coal fly ash}, journal = {Nashrieh Shimi va Mohandesi Shimi Iran}, volume = {41}, number = {4}, pages = {179-196}, year = {2023}, publisher = {Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR}, issn = {1022-7768}, eissn = {}, doi = {}, abstract = {In this study, a meso-porous Fe-ZSM-5 nano-zeolite (SiO2/Al2O3=40) was synthesized from a type of coal fly ash (CFA) containing high amount of muscovite plates by hydrothermal treatment and then the physicochemical characterization of CFA and Fe-ZSM-5 was examined using various techniques. The final product (Fe-ZSM-5) was applied in the simultaneous removal of benzene (B), toluene (T) and m-xylene (X) from aqueous solutions. The effect of adsorption parameters including pH solution, amount of dosage, contact time, initial concentration of BTX and temperature versus BTX removal efficiency was assessed under batch experiments. The maximum adsorption capacity of BTX (qmax) was obtained at optimum condition of pH=7 and 90 min (qmax; B=9.16 57/9 T=  > 16/9B=  ; ). مطالعات سینیتک و هم­ دمای جذب نشان دادند که داده ­های تعادلی جذب به خوبی با مدل های شبه درجه دوم و فروندلیچ متناسب می­ باشند. به علاوه، بررسی‌های ترمودینامیکی نشان داد که واکنش جذب BTX در دماهای کم‌تر بر روی نانو­زئولیت Fe-ZSM-5 شدنی، گرمازا و خود­به­ خودی است. بر اساس نتایج تجربی به‌دست آمده، نانو­زئولیت Fe-ZSM-5 می‌تواند به عنوان یک جاذب سبز و کارآمد برای حذف هیدروکربن­ های خطرناک از محلول­ های آبی به کار گرفته شود.}, keywords_fa = {CFA,Fe-ZSM-5 nano-zeolite,BTX,Adsorption}, url = {https://www.nsmsi.ir/article_245384.html}, eprint = {https://www.nsmsi.ir/article_245384_4ae904f9c3ac468f947a22094a7af851.pdf} }