| 초록 |
Heavy metal pollution from the miscellaneous industrial processes could cause serious environmental and carcinogenic problems due to its toxicity to all forms of life. In this study, we demonstrate how PP surface can be modified with desirable functional groups for removing metal ions. The hydrophobic PP fibers have been treated with plasma or electron beam irradiation to introduce hydroxyl groups on the surface. The pretreated PP fibers were then modified with 3-mercaptopropyl trimethoxysilane (MPTMS) by a conventional silanization reaction. The resulting thiol-modified PP fibers showed a great performance of removing metal ions such as silver and gold ions. Contact angle measurement, SEM, UV-vis., FTIR and ICP-MS have been applied to characterize surface reactions and adsorption properties of modified PP fibers (This work is financially supported by the Ministry of Trade, Industry & Energy (MOTIE) through the fostering project of the Innovation for Engineering Education.). |
