摘要
采用一步水热法制备了具有多面体形貌的Ag_3PO_4。利用X射线衍射(XRD)、扫描电子显微镜(SEM)及紫外-可见漫反射光谱(UV-vis DRS)对样品的晶相结构、形貌及吸光性能进行表征。在可见光照下,Ag_3PO_4多面体催化降解水中四环素的活性高于沉淀法制备的不规则Ag_3PO_4。自由基捕获证实Ag_3PO_4多面体催化去除四环素的主要反应活性物种是光生空穴。
Polyhedron Ag_3PO_4 was synthesized by a hydrothermal method.The phase structure,morphology and optical property of the as-obtained samples were characterized by X-ray powder diffraction(XRD),scanning electron microscopy(SEM) and UV-Vis diffuse reflectance spectroscopy(UV-vis DRS).The photocatalytic activity of Ag_3PO_4 polyhedron for tetracycline degradation is higher than that of irregular Ag_3PO_4 synthesized by the direct precipitation method.The active species trapping experiments confirmed that photogenerated holes are the main reactive species for tetracycline degradation in Ag_3PO_4 polyhedron system.
出处
《山东化工》
CAS
2018年第2期7-9,共3页
Shandong Chemical Industry
基金
华北理工大学2017年大学生创新创业训练计划项目(X2017133)
河北省教育厅青年基金项目(QN2017115)
关键词
Ag3PO4多面体
水热法
光催化
四环素
Ag3PO4 polyhedron
hydrothermal method
photocatalysis
tetracycline
