Competitive Adsorption of Cadmium(II) and Mercury(II) Ions from Aqueous Solutions by Activated Carbon from Xanthoceras sorbifolia Bunge Hull

Figure 1

(a) Nitrogen adsorption (circle) and desorption (square) isotherms at −196°C on the activated carbon (XLAC) samples. (b) Pore size distribution of XLAC samples. (c) SEM microphotograph of XL at 2000x magnification. (d) SEM microphotograph of XLAC at 2000x magnification. (e) FTIR spectra of XL and XLAC after adsorption of Cd(II) and Hg(II).

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