首页|Ag3PO4/Ag/ZIF-8复合光催化剂的合成及其光催化性能研究

Ag3PO4/Ag/ZIF-8复合光催化剂的合成及其光催化性能研究

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以ZIF-8,NaH2PO4和AgNO3为原料,在室温条件下成功制备出一系列Ag3PO4/Ag/ZIF-8复合光催化剂。采用X射线衍射(XRD)、X射线光电子能谱(XPS)、紫外可见漫反射光谱(DRS)以及扫描电子显微镜(SEM)等手段对Ag3PO4/Ag/ZIF-8复合催化剂进行了表征分析。通过模拟太阳光下罗丹明B(RhB)降解实验来评价样品的光催化活性。结果表明:Ag3PO4/Ag/15%ZIF-8复合光催化剂的光催化活性最好,经过四次循环实验后RhB的降解率仍能达到87%,这归因于Ag3PO4与ZIF-8构成的异质结结构的协同作用以及单质Ag的电子传递作用。
Synthesis and Research on Photocatalytic Activity of Ag3PO4/Ag/ZIF-8 Composites Photocatalyst
A series of Ag3PO4/Ag/ZIF-8 composite photocatalysts were successfully synthesized with ZIF-8,NaH2PO4and AgNO3as raw materials at room temperature.Products were characterized by X-ray diffraction,X-ray photoelectron spectroscopy, UV-Vis diffuse reflectance spectra and scanning electron microscopy.The photocatalytic activity of the samples were evaluated by degradation of rhodamine B under simulated sunlight irradiation.The experiments show that Ag 3PO4/Ag/15%ZIF-8 composite has the best activity and the degradation of RhB rate still reached 87%after four recycle experiments,which are attributed to the synergistic effect of Ag 3PO4and ZIF-8 heterostructure and the electron transfer effect of the elementary substance Ag.

Ag3PO4/Ag/ZIF-8photocatalyticsilver phosphateZIF-8

李东昶、刘建新、樊彩梅、李双志

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太原理工大学化学化工学院,太原030024

Ag3PO4/Ag/ZIF-8 光催化 磷酸银 ZIF-8

国家自然科学基金

21676178

2018

人工晶体学报
中材人工晶体研究院

人工晶体学报

CSTPCD北大核心
影响因子:0.554
ISSN:1000-985X
年,卷(期):2018.47(4)
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