Formation of Group 11 Bismuth Sulfide Nanoparticles Using Bismuth Dithioates under Mild Conditions

5 years ago

Formation of Group 11 Bismuth Sulfide Nanoparticles Using Bismuth Dithioates under Mild Conditions

Victoria L. Blair, Dimuthu C. Senevirathna, Leone Spiccia, Melissa V. Werrett, Philip C. Andrews, Narendra Pai

The formation of mixed-metal sulfides with the general structure AgBiS2 and Cu3BiS2 by a simple two-step process utilizing bismuth dithiocarboxylates as Bi and S precursors is described. A sonochemical reaction of Bi2O3 with six different aryl dithioic acids: dithiobenzoic acid (BDT-H), 4-methoxydithiobenzoic acid (4-MBDT-H), 3-methyldithiobenzoic acid (3-MBDT-H), 2-mesitylenedithioic acid (2-MDT-H), 4-fluorodithiobenzoic acid (4-FBDT-H), and 2-thiophenedithioic acid (2-TDT-H) resulted in the corresponding complexes: [Bi(BDT)3] 1, [Bi(4-MBDT)3] 2, [{Bi(3-MBDT)3}2⋅C7H8] (32⋅C7H8), [Bi(2-MDT)3] 4, [Bi(4-FBDT)3] 5 and [Bi(2-TDT)3] 6. Microwave irradiation of these bismuth(III)aryldithioate complexes with AgNO3 or CuCl under mild reaction conditions (140 °C) resulted in the respective mixed-metal sulfides. Attempt to synthesize AuBiS2 using similar reaction protocols were unsuccessful, resulting only in the formation of elemental Au0, S8 and BiOCl. Bismuth mixed metal sulfides: The formation of AgBiS2 and Cu3BiS2 mixed-metal sulfides through a simple two-step process utilizing bismuth dithioates as single source Bi and S precursors is described. Microwave irradiation of bismuth(III)aryldithioate complexes with AgNO3 or CuCl under mild reaction conditions (140 °C) resulted in the respective mixed-metal sulfides.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201701952