A strong adsorbent TEA-GO for Cu2+ is prepared using TEA modified GO nanosheets. FT-IR and XPS results show that epoxy groups on GO are eliminated, and simultaneously hydroxyl groups and C–N dominate the surface groups of TEA-GO. The increased equilibrium capacity of TEA-GO for a high initial concentration of Cu2+ makes it a promising adsorbent for heavy metal ions.
G. Liu, S. Gui, H. Zhou, F. Zeng, Y. Zhou and H. Ye, Dalton Trans., 2014, 43, 6977 DOI: 10.1039/C4DT00063C
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