Journal
APPLIED CLAY SCIENCE
Volume 25, Issue 3-4, Pages 149-159Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.clay.2003.08.007
Keywords
silver nanoparticles; kaolinite; intercalation; XRD; SAXS
Ask authors/readers for more resources
Ag nanoparticles were synthesized in the interlamellar space of a layered kaolinite. Disaggregation of the lamellae of the nonswelling kaolinite was achieved by the intercalation of dimethyl sulfoxide (DMSO). The kaolinite was suspended in aqueous AgNO3 solution and the adsorbed Ag+ ions were reduced on the surface of kaolinite lamellae with NaBH4 or UV light irradiation. The silver nanoparticles formed were characterized by X-ray diffraction (XRD), small angle X-ray scattering (SAXS), and transmission electron microscopy (TEM). We studied the effects of the two reduction methods on the size and the size distribution of Ag nanoparticles and how clay mineral structure is altered as a consequence of particle formation. It was established that the size of Ag nanoparticles depends on both silver content and the reduction method. Photoreduction of silver led to the formation of relatively large Ag nanoparticles (diameter 8-14 nm). (C) 2003 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available