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Performance of Keratin Nanoparticle and Its Magnetic Nanocomposite For Zn(Ii) Removal From Its Aqueous Solution
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نویسنده
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Mousavi Zahra ,Manteghian Mehrdad ,Ahmadpoor Fatemeh
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منبع
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Advances In Environmental Technology - 2020 - دوره : 6 - شماره : 1 - صفحه:37 -45
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چکیده
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The comparative sorption studies were carried out to investigate the performance of keratin nanoparticles (knps) and magnetic knps (mknps) for zn(ii) uptake. mknps showed remarkably higher zn(ii) removal due to the lower keratin weight percent in its structure (8.4%). mknps revealed relatively uniform zn(ii) removal within ph range between 4.0 to 6.0 at the temperature of 25°c rather than knps. both knp and mknp exhibited two-stage kinetic behavior and reached to their equilibrium adsorption capacity within 30 min. the adsorption of zn(ii) on knps and mknps followed pseudo second order kinetic model. it was found that the experimental data were best fitted to sips or redlich-peterson isotherm when knp was used as biosorbent. unlike knp, mknp conformed better to langmuir model. the maximum adsorption capacity of mknp at two doses of 3.0 and 5.0 g/l was calculated to be 30 and 18 mg/g, respectively. as the dosage of mknp raised from 3.0 to 5.0 g/l, the value of kl increased from 0.045 l/mg to 0.154 l/mg, confirming more biosorbent tendency to adsorb metal ions.
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کلیدواژه
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Keratin Nanoparticles ,Magnetic Keratin ,Zn(Ii) Removal ,Adsorption Isotherm ,Adsorption Kinetic
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آدرس
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Tarbiat Modares University, Department Of Chemical Engineering, Iran, Tarbiat Modares University, Department Of Chemical Engineering, Iran, Tarbiat Modares University, Department Of Materials Engineering, Iran
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پست الکترونیکی
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zahra_che_poly85@yahoo.com
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Authors
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