The silver phosphate (Ag3PO4) sample was synthesized using Na3PO4, AgNO3 and PEG-10000 as raw materials by the hydrothermal method. Its different morphologies were obtained by changing temperature and surfactant. And its structures and morphology were characterized by X-ray diffraction and field emission scanning electron microscopy. The result of the study indicated that after the heat treatment at 150°C, the as-obtained Ag3PO4 polyhedral microcrystal’s diameter was about 4 μm. Meanwhile, it showed that using Ag3PO4 polyhedral microcrystals as photocatalysts, the photocatalytic degradation rate of methylene blue in aqueous solution was close to 98.5% after 25 min of sunlight.

中文翻译：

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Ag3PO4多面体微晶的合成及光催化研究

以Na3PO4、AgNO3和PEG-10000为原料，采用水热法合成了磷酸银(Ag3PO4)样品。其不同的形貌是通过改变温度和表面活性剂获得的。并通过X射线衍射和场发射扫描电子显微镜对其结构和形貌进行了表征。研究结果表明，经过150℃热处理后，所得到的Ag3PO4多面体微晶的直径约为4μm。同时表明，使用Ag3PO4多面体微晶作为光催化剂，在阳光照射25分钟后，亚甲基蓝在水溶液中的光催化降解率接近98.5%。