Biomimetic Synthesis of Hydroxyapatite in Presence of Imidazole-4,5-dicarboxylic Acid Grafted Chitosan for Removing Chromium(VI)

Figure 1

FT-IR spectra of HAP particles obtained by using IDACS as an organic matrix with different molar ratios of chitosan to imidazole-4,5-dicarboxylic acid. a: 3 : 1; b: 2 : 1; c: 1 : 1; d: 1 : 2; e: 1 : 3.