Complex 3D architectures of ZnS microflowers have been successfully synthesized via a quick water-based precipitation synthesis method at moderate temperature (<100°C) using an inorganic capping agent K 2 S 2 O 7. The synthesized samples were characterized by SEM, XRD, FTIR and BET analysis. The as-synthesized ZnS microflowers are composed of numerous nanowires and has a cubic structure. Surface area is 42 m 2 .g-1 and the pore diameter is 3.7 nm. Comparison with equivalent synthesis with an organic capping agent (PVP) was performed.