| 摘要 |
A water purification composition is disclosed. Said composition comprises porous granules of a particulate material, silver nanoparticles and polyvinyl alcohol matrix, wherein the silver nanoparticles and the particulate material are embedded in the polyvinyl alcohol matrix, the particulate material, polyvinyl alcohol and silver nanoparticles being present in a ratio of 100: 4.5: 0.7 to 100: 10: 0.7 on weight basis, and the porous granules having a size in a range of 0.1 mm to 3 mm. A method for preparing a water purification composition is also disclosed. |
