Mechanochemical synthesis of colloidal silver bromide particles in the NaBr–AgNO3–NaNO3 system

Resumo

X-ray diffraction and thermal analyses, electron microscopy, and dynamic light scattering have been employed to study silver bromide nanoparticles obtained by the mechanochemical exchange reaction NaBr + AgNO₃ + zNaNO₃ = (z + 1)NaNO₃ + AgBr in sodium nitrate matrix (diluent and side reaction product) at z = z₁ = 8.06 and z = z₂ = 4.31. AgBr nanoparticles have been obtained in the free form by dissolving the matrix in water, and their activity in the photodegradation of methylene blue dye has been studied.