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Dithiocarbamate functionalized A l( OH ) 3 ‐polyacrylamide adsorbent for rapid and efficient removal of C u(II) and P b(II)
Author(s) -
Liu Ya,
Qian Peng,
Yu Yang,
Xiao Li,
Wang Yongliang,
Ye Shufeng,
Chen Yunfa
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.45431
Subject(s) - adsorption , fourier transform infrared spectroscopy , thermogravimetric analysis , metal ions in aqueous solution , polyacrylamide , dithiocarbamate , nuclear chemistry , chemistry , hydroxide , metal , scanning electron microscope , inorganic chemistry , materials science , polymer chemistry , chemical engineering , organic chemistry , engineering , composite material
ABSTRACT Heavy metal ions such as Cu 2+ and Pb 2+ impose a significant risk to the environment and human health due to their high toxicity and non‐degradable characteristics. Herein, Al(OH) 3 ‐polyacrylamide chemically modified with dithiocarbamates (Al‐PAM‐DTCs) was synthesized using formaldehyde, diethylenetriamine, carbon disulfide, and sodium hydroxide for rapid and efficient removal of Cu 2+ and Pb 2+ . The synthesized adsorbent was characterized by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis, scanning electron microscopy–energy dispersive X‐ray spectroscopy analysis, and transmission electron microscope measurements. Al‐PAM‐DTCs showed rapid removal of Cu 2+ (<30 min) and Pb 2+ (<15 min) with high adsorption capacities of 416.959 mg/g and 892.505 mg/g for Cu 2+ and Pb 2+ respectively. Al‐PAM‐DTCs also had high capacities in removing suspended solids and metal ions simultaneously in turbid bauxite suspensions. FTIR, thermodynamic study, and elemental mapping were used to determine the adsorption mechanism. The rapid, convenient, and effective adsorption of Cu 2+ and Pb 2+ indicated that Al‐PAM‐DTCs has great potential for practical applications in purification of other heavy metal ions from aquatic systems. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45431.