Abstract
Bi2WO6 nanoplates were successfully synthesized at 200 °C with bismuth citrate (C6H13BiN2O7·H2O) and sodium tungstate dihydrate (Na2WO4·2H2O) as raw materials in hydrothermal environment. The phase composition and morphology were characterized by x-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy (TEM) and high-resolution TEM. The average sizes of the Bi2WO6 nanoplates were ca. 300 ∼ 400 nm in lateral size and ca. 30 nm in thickness, respectively, and the nanoplates were parallel to (010) planes. To completely understand the growth mechanism of the Bi2WO6 nanoplates, a series of time-dependent tests were applied, and a possible mechanism was proposed. Additionally, Rhodamine (RhB) degradation testing was carried out to investigate the photocatalytic activity.
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