| 초록 |
The modified periodic mesoporous organosilica(PMO) has the advantages of high specific surface area, regular pore canal structure, and uniform distribution of organic functional groups on the pore surface. We have successfully synthesized through bissilylated urea bridged PMO and modified using chlorosulphonic acid in chloroform. The PMO was used for the sorption of Li+ in wastewater solution. The effects of solution pH, sorption time, temperature and initial metal ion concentration onto metal ions sorption have been investigated. It was characterized by Fourier transform infrared spectroscopy, Energy Dispersive X-ray Spectroscopy, Scanning electron microscope, Transmission electron microscopy and X-ray diffraction. The sorption of metal ions onto sulphonic acid modified PMO were strongly dependent on the chemical interactions and chelating effects. |
