Research Article

Aminopropyl Functionalised MCM-41: Synthesis and Application for Adsorption of Pb(II) and Cd(II)

Figure 2

The FT-IR spectra: (a) calcined MCM-41; (b) extracted MCM-41; (c) direct-NH2-MCM-41; (d) post-NH2-calcined MCM-41; (e) post-NH2-extracted MCM-41.