In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

Figure 8

Congo red removal efficiencies of ZnO nanoparticles, chitosan and ZnO/chitosan nanocomposite (volume: 40 mL; adsorbent dose: 0.02 g; initial concentrations: 100 mg·L^−1; pH values at equilibrium: about 6.5).