Ag_(3)PO_(4)/MIL-125光催化剂的制备与四环素降解性能研究  

Synthesis of Ag_(3)PO_(4)/MIL-125 photocatalyst and its performance in tetracycline degradation

作　　者：任百祥[1] 陈畴 周奕行 任楚奇 孙玉伟[1] REN Bai-xiang;CHEN Chou;ZHOU Yi-xing;REN Chu-qi;SUN Yu-wei(College of Engineering,Jilin Normal University,Siping 136000,China;School of Material Science and Technology,China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]吉林师范大学工程学院,吉林四平136000 [2]中国地质大学(北京)材料科学与技术学院,北京100083

出　　处：《吉林师范大学学报（自然科学版）》2024年第3期8-13,共6页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(52202238)。

摘　　要：通过将Ag_(3)PO_(4)颗粒原位沉积在圆饼状MIL-125的表面,成功制备了Ag_(3)PO_(4)/MIL-125系列光催化剂.分别采用XRD、SEM、紫外可见漫反射光谱测试了催化剂的晶相结构、形貌特征、光吸收性能.研究在模拟太阳光照射下,Ag_(3)PO_(4)沉积量不同时,Ag_(3)PO_(4)/MIL-125光催化剂降解四环素类抗生素的性能,并探究了pH和催化剂投加量对体系降解效果的影响.实验表明Ag_(3)PO_(4)的沉积有效提高了MIL-125的光催化性能,在pH=2,投加量为0.2 g/L,光照60 min后,Ag_(3)PO_(4)(20%)/MIL-125对四环素类抗生素的降解率可以达到94%.The present study successfully prepared a series of Ag_(3)PO_(4)/MIL-125 photocatalysts through the in-situ deposition of Ag_(3)PO_(4)particles onto the surface of pristine MIL-125.The crystal phase structure,morphological characteristics,and light absorption properties of the catalysts were investigated using XRD,SEM,and UV-vis diffuse reflectance spectroscopy,respectively.The photocatalytic performance of the Ag_(3)PO_(4)/MIL-125 catalysts in degrading tetracyclines under simulated solar light irradiation was studied with varying amounts of Ag_(3)PO_(4)deposition,along with an exploration of the effects of pH and catalyst dosage on the degradation efficiency of the system.The results demonstrate that the deposition of Ag_(3)PO_(4)effectively enhances the photocatalytic performance of MIL-125.Specifically,at pH=2 and a dosage of 0.2 g/L,Ag_(3)PO_(4)(20%)/MIL-125 achieves a degradation rate of 94%for tetracyclines after 60 min of light exposure.

关 键 词：MOFS Ag_(3)PO_(4) 光催化 四环类抗生素 

分 类 号：X52[环境科学与工程—环境工程]