Use of Valine Amino Acid Functionalized α-MnO2/Chitosan Bionanocomposites as Potential Sorbents for the Removal of Lead(II) Ions from Aqueous Solution
2016
Mallakpour, Shadpour | Madanī, Maryam
In this work, α manganese dioxide nanorods (α-MnO₂) have been successfully functionalized with valine amino acid by a solvothermal method. The α-MnO₂-valine was characterized with field emission scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis (TGA). The amount of valine grafted onto α-MnO₂ was found to be 39 wt % by TGA. The α-MnO₂-valine nanorods were used as filler for preparation of chitosan bionanocomposites (BNCs). The results showed that with increasing the α-MnO₂-valine content, the thermal stability of BNCs was increased. The chitosan/α-MnO₂-valine BNC was used as adsorbent for the efficient removal of lead ions. Our results indicate that the BNC has good prospects for application as an adsorbent in wastewater processing.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
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