磷酸银催化剂的控制合成及其光催化性能  

Controlled synthesis and photocatalytic performance of silver phosphate catalyst

作　　者：石瑛 孙慧萍[2] 王元元 刘金库[2] Shi Ying;Sun Huiping;Wang Yuanyuan;Liu Jinku(School of Public Utilities and Road Bridge Engineering,Shanghai Communications Polytechnic,Shanghai 200030;College of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237)

机构地区：[1]上海交通职业技术学院公用事业和路桥工程学院,上海200030 [2]华东理工大学化学与分子工程学院,上海200237

出　　处：《化工新型材料》2025年第3期229-234,239,共7页New Chemical Materials

基　　金：2023年度中国建设教育协会教育教学科研重点课题项目(2023054);上海市职业教育协会课题项目(YB202409);上海交通职业技术学院校级科研创新团队项目(2024T01)。

摘　　要：磷酸银作为理想的光催化材料,在降解水中氨氮的过程中,有极高的光催化活性。采用蛋膜法、直接沉淀法和水热合成这3种方法制备了Ag_(3)PO_(4)半导体材料。采用X射线衍射仪、扫描电子显微镜、紫外-可见分光光度计等方法分析Ag_(3)PO_(4)晶体结构和性能,并对氨氮溶液和罗丹明B染料进行光催化降解实验。结果表明:3种方法中以直接沉淀法制备的Ag_(3)PO_(4)晶体的光催化活性最好。其磷酸银(110)晶面的暴露程度较高,所产生的光生电子氧化能力更强,同时,纳米粒径较小,比表面积更大,能够吸附更多污染物,更利于光催化过程的进行。因此,通过控制制备条件,可以调控Ag_(3)PO_(4)光催化剂的形貌与晶面结构,对促进其在工业污水处理中的应用具有参考价值。Silver phosphate,as an ideal photocatalytic material,exhibits extremely high photocatalytic activity in the degradation of ammonia nitrogen in water.Ag_(3)PO_(4) semiconductor materials were prepared using three methods:egg membrane method,direct precipitation method,and hydrothermal synthesis.The crystal structure and properties of Ag_(3)PO_(4) were analyzed using X-ray diffraction,scanning electron microscopy,and UV visible spectrophotometer.Photocatalytic degradation experiments were conducted on ammonia nitrogen solution and Rhodamine B dye.The results indicated that the Ag_(3)PO_(4)-Z crystal prepared by direct precipitation method had the best photocatalytic activity among the three methods.The exposure degree of its silver phosphate(110) crystal surface was relatively high,and the oxidation ability of photogenerated electrons generated was stronger.At the same time,the nanoparticle size was smaller,the specific surface area was larger,and it could adsorb more pollutants,which was more conducive to the photocatalytic process.Therefore,by controlling the preparation conditions,the morphology and crystal structure of Ag_(3)PO_(4) photocatalysts could be regulated,providing valuable insights for promoting the application in industrial wastewater treatment.

关 键 词：合成制备 Ag_(3)PO_(4)晶体 催化剂 光催化性能 

分 类 号：TB32[一般工业技术—材料科学与工程]