Adsorption profile of Cd(II) (a) and Langmuir adsorption isotherm model of Cd(II) adsorption (b). On 25 mg of ZnO nanosheets at pH 5.0 and 25°C. Adsorption experiments were obtained at different concentrations (0 to 150 mg L−1) under static conditions.
Khan et al. Nanoscale Research Letters 2013 8:377 doi:10.1186/1556-276X-8-377