Micro-crystalline PbWO_4 was sonochemically produced using Pb(CH_3COO)_2 ? 3H_2O and Na_2WO_4 ? 2H_2O in aqueous solutions with and without anionic surfactant (sodium dodecyl sulphate or sodium lauryl sulphate). The product morphologies were influenced by the pH values and the surfactant. Micro-crystalline PbWO_4 composing of Pb, W and O, and W—O stretching vibration band of WO_4 tetrahe-drons were detected using XRD, SEM, EDX, TEM, SAED and FTIR. Photoluminescent intensities, caused by the electronic transition from ~1T_2 to ~1A_1 states, shown to increase with the increase in the pH values of the solutions.
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