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Progress in Color, Colorants and Coatings، جلد ۹، شماره ۱، صفحات ۱-۱۶
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عنوان انگلیسی Synthesis, Characterization and Application of Nano-composite Silica Aerogel- Egg Shell for Dye Removal of Colored Wastewater
چکیده انگلیسی مقاله In the present study, silica aerogel- egg shell was synthesized for dye removal of colored wastewater. The nano composite structure was characterized by Fourier transform infrared spectra FTIR and scanning electron microscope SEM.The ability of nano composite absorption was assessed for removal basic violet 16BV16 dye from aqueous solutions and was compared with two other adsorbents such as egg shell and silica aerogel. The adsorbents evaluated for removal of dye under different pH, temperature, adsorbent dosage and contact time. The optimum pH dye removal by nano composite was 8, while the optimum pH for two other adsorbents of BV16 was about 12. Optimum temperature, adsorbent dosage and contact time for dye removal was 35 °C, 0.1g and 90 min respectively. The experimental data were analyzed with Langmuir and Freundlich isotherm models and was observed that synthesized adsorbents are best fitted by Freundlich equation. The results suggest that this method is a beneficial procedure for dye removal of colored wastewater.
کلیدواژه‌های انگلیسی مقاله Basic violet 16,Eggshell,Nano composite,Silica Aerogel
نویسندگان مقاله M. E. Olya |
Department of Environmental Research, Institute for Color Science and Technology

M. Madadi |
Department of chemistry, Islamic Azad University

F. Tadayon |
Department of Chemistry, Islamic Azad University

نشانی اینترنتی http://pccc.icrc.ac.ir/article_75870_ae1ce535a9a3e3f11149b5e4c265c108.pdf
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