Chế tạo vàng nano và điều chỉnh tăng kích thước sử dụng hạt mầm bằng phương pháp chiếu xạ gamma co-60

• Tác giả: Duy Du Bùi, Văn Phú Đặng, Quốc Hiếu Nguyễn
• Ngôn ngữ: vie
• Ký hiệu phân loại: 620.5 Nanotechnology
• Thông tin xuất bản: Hóa học, 2013
• Mô tả vật lý: 740-743
• Bộ sưu tập: Metadata
• ID: 556769

Tóm tắt

Gold nanoparticles with the size in the range 8-20 nm were synthesized by gamma-irradiation of Au3+ solution containing polyvinyl pyrrolidone as stabilizer. The size of gold nanoparticles was increasingly further regulated from 20 up to about 60 nm using seed enlargment method. The gold nanoparticles were characterized by UV-vis spectroscopy and transmission electron microscopy (TEM). The colloidal gold nanoparticles with the size from 8 to 60 nm have a plasmon absorption band with maximum wavelength in the range 517.5-543.0 nm. The colloidal gold nanoparticles solutions storaged at room temperature were stable for months.