Synthesis of new modified magnetic nanocomposite and it’s application for effective removal of metallic ions

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 240

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شناسه ملی سند علمی:

NSCEI09_154

تاریخ نمایه سازی: 19 آبان 1398

چکیده مقاله:

Heavy metal pollution has become a serious threat to human health. Development of analytical methods and Synthesis powerfull sorbents for pollution determination has been Effective. In this research, a simple and inexpensive method for the synthesis of a magnetic mesoporous nanocomposite sorbents using agarose gel as a template was developed. The prepared adsorbent was immobilized with a Schiff‟s base of sulfonyl derivatives as a ligand. The synthesized sorbent was characterized by Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Flame atomic absorption spectroscopy (AAS) for metallic ions removing were used. The applicability of the new nanoporous material was examined as an extracting medium to isolate heavy metals from aqueous samples. The influence of three parameters pH, temperature and contact time on the removal of metallic ions by a Central Composite Design (CCD) under Response Surface Methodology (RSM), were optimized. Under these optimize conditions maximum metallic ions removal efficiency was obtained about 99.66%. The sorbent could be easily regenerated by a 0.01 mol.L-1 HCl solution and it‟s recycling also show more than 95% removal of heavy metals.

نویسندگان

Kh. Hamzehei

Department of Chemistry, Lorestan University, Khorramabad, ۴۴۳۱۶-۶۸۱۵۱, Iran

K. Alizadeh

Department of Chemistry, Lorestan University, Khorramabad, ۴۴۳۱۶-۶۸۱۵۱, Iran