Tổng hợp chiếu xạ gamma của các hạt nano bạc cố định trong gốm xốp cho các ứng dụng trong xử lý nước

• Ngôn ngữ: vie
• Thông tin xuất bản: Tạp chí hóa học, 2013
• Mô tả vật lý: 653-657
• Bộ sưu tập: Metadata
• ID: 483795

Tóm tắt

The Ag nanoparticles in polyvinylpyrrolidone solution with concentration of 500 mg/L and their diameter of 10-15 nm were synthesized on a large scale up to 100 L/batch by gamma irradiation route. Porous ceramic candle samples were functionalized by treatment with a 3-amino-propyltriethoxysilane coupling agent and then impregnated in Ag nanoparticles solution for fixing Ag nanoparticles. The load Ag nanoparticles content on porous ceramic was of about 200-250 mg/kg. The average pore size of porous ceramic/Ag nanoparticles was about 48.2 A. Owing to strong bonding of silver atoms to the wall of porous ceramic functionalized by 3-amino-propyltriethoxysilane, the contents of silver released from porous ceramic/Ag nanoparticles into filtrated water by flow test at a flow rate of about 5 L/h were less than 10 ug/L and was far below the required standard limit ( 100 ug/L) for drinking water. Thus, porous ceramic/Ag nanoparticles candles can be potentially applied for point-of-use drinking water treatment.