Abstract
By using natural bamboo as biotemplate, we synthesized mesoporous silica by Hydrothermal method followed by calcination at 650°C. And it was functionalized with aminopropyltriethoxysilane (APTS) in dry toluene under nitrogen atmosphere. As-synthesized Amino-functionalized mesoporous silica (NH2-MS) were characterized by scanning electron microscope (SEM), nitrogen adsorption/desorption (BET), Fourier transform infrared spectra (FT-IR).The results indicated that the obtained particles retained the morphology of bamboo and possessed mesoporous structrure. Adsorption measurement results indicates the Pb (II) adsorption isotherm fits Freundlich model and maximum adsorption capacity of 143.4mg/g, the pseudo second-order kinetic model provided the best fit to the experimental data.
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