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صفحه اصلی
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بیست و نهمین کنفرانس شیمی آلی ایران
Synthesis, characterization and adsorption study of dyes on melamine-formaldehyde microspheres
نویسندگان :
مینا محمدی ( دانشگاه شهید مدنی آذربایجان ) , فهیمه فرشی ازهر ( دانشگاه شهید مدنی آذربایجان ) , معصومه باقری ( دانشگاه شهید مدنی آذربایجان )
کلید واژه ها :
Melamine-formaldehyde resin،Microspheres،Dyes،Adsorption
چکیده مقاله :
Water pollution caused by colors from diverse industries such as textiles, leather, paper, medications, beauty products, printing, and dye production has become a global issue that has harmed both human and aquatic life [1]. Porous polymer, especially resin microsphere, has gained heightened attention as the adsorption material for their characteristics of high dispersibility in solvents and large surface area of network] 2, 3[. Melamine-formaldehyde (MF) resin microspheres were synthesized from melamine and formaldehyde solution via dispersion polymerization method. The chemical structure, thermal properties and the surface morphology of adsorbent were investigated by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Furthermore, the effects of initial pH value and ionic strength in dye solution, contact time and initial concentration of dyes on the adsorption capacities of dyes on the adsorbent have been also investigated. In addition, the adsorption isotherm and kinetics were also studied to evaluate the behavior of the adsorbent. The prepared adsorbent exhibited excellent elution effect and recovery efficiency in five cycle
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