Reduction, aggregation and physicochemical properties of silver nanoparticles in propan-2-ol:cyclohexane mixtures induced by a high energy electron beam

Journal Article · Wed Nov 20 04:00:00 UTC 2002 · Materials Research Bulletin

DOI:https://doi.org/10.1016/S0025-5408(02)00970-4· OSTI ID:20883104

Rele, Medha; Kapoor, Sudhir; Mukherjee, Tulsi

Radiolytic reduction of silver and gold ions and subsequent formation of their aggregates have been studied in propan-2-ol:cyclohexane mixture using pulse radiolysis technique. The silver sol, produced on irradiation of Ag{sup +} solution with a train of electron pulses, has been characterized using XRD and TEM. The size of the particles has been found to be in the range of 30-50 nm. The silver sol emit light with a maximum at 340 nm on irradiation with a high energy electron beam. The intensity of emission has been found to decrease with decrease in concentration of Ag particles. Formation of colloidal gold has also been observed on irradiation of NAuCl{sub 4} solution in propan-2-ol:cyclohexane by train of electron pulses. The particles so formed are oxidized on exposure to air. No light emission has been observed from Au sol.

• OSTI ID: 20883104
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 14 Vol. 37; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AGGLOMERATION
CYCLOHEXANE
ELECTRON BEAMS
ELECTRON MICROSCOPY
GOLD
GOLD IONS
IRRADIATION
NANOSTRUCTURES
OPTICAL PROPERTIES
RADIOLYSIS
SILVER
SILVER IONS
SOLS
X-RAY DIFFRACTION