Mechanochemical synthesis of colloidal sulfur particles in the Na2S2O3–H2(C4H4O4)–Na2SO3 system

Аннотация

Elemental sulfur nanoparticles (nanosulfur, S_n⁰) have been obtained in a matrix consisting of sodium sulfite (diluent and a final reaction product) and succinic acid (catalyst) by mechanochemical syntheses via the reaction Na₂S₂O₃ · 5H₂O + H₂(C₄H₄O₄) + zNa₂SO₃ = (z + 1)Na₂SO₃ + H₂(C₄H₄O₄) + 5H₂O+ S_n⁰, at z = 19.6. It has been shown that free nanodispersed sulfur can be obtained by dissolving the matrix in water. The prepared samples have been characterized using a set of physical and physicochemical methods.