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Fabrication and characterization of Ag/AgCl@ZIF-8 hybrid nanostructure and used its as photocatalyst for degradation of rhodamine B under visible light
Journal of Porous Materials ( IF 2.5 ) Pub Date : 2019-10-24 , DOI: 10.1007/s10934-019-00815-w
Guihong Zuo , Anqi Wang , Ying Yang , Hailiang Huang , Fangbiao Wang , Hongwei Jiang , Lei Zhang , Youjin Zheng

Recently, Ag/AgCl has been widely researched by various methods and used as photocatalyst to degrade organic dyes due to its excellent photocatalytic properties under visible light. In this paper, a novel visible-light-driven plasmonic photocatalyst Ag/AgCl@ZIF-8 was successfully prepared by depositing AgCl nanoparticles into the ZIF-8 crystals, and then reducing partial Ag+ ions of AgCl nanoparticles to Ag0 species under UV light irradiation. All as-synthesized samples were characterized by XRD, SEM, TEM, BET and UV–Vis diffuse reflectance spectra. The photocatalytic activity of all as-synthesized samples was evaluated by degradation RhB solution under visible light irradiation. The results show that AgCl nanoparticles are well dispersed and inlaid in the body of ZIF-8 crystals, and partial Ag+ ions of AgCl nanoparticles are reduced into Ag0 species after 30 min of UV light irradiation.The as-synthesized Ag/AgCl@ZIF-8 keeps the high surface area of ZIF-8 and holds the excellent photo-properties of Ag/AgCl. The photocatalytic activity of all as-synthesized sample were evaluated by degradation RhB solution under visible light irradiation. Ag/AgCl@ZIF-8 exhibited the highest photocatalystic activity, which could degrade 99.12% RhB. The synergistic effect of Ag/AgCl and ZIF-8 makes Ag/AgCl@ZIF-8 possible to be used for the degradation of organic dye by using sunlight.

中文翻译:

Ag / AgCl @ ZIF-8杂化纳米结构的制备与表征,并用作可见光降解罗丹明B的光催化剂

近年来,由于Ag / AgCl在可见光下的优异的光催化性能,因此已经通过各种方法进行了广泛的研究,并被用作降解有机染料的光催化剂。通过将AgCl纳米颗粒沉积到ZIF-8晶体中,然后将AgCl纳米颗粒的部分Ag +离子还原为Ag 0,成功制备了新型可见光驱动的等离激元光催化剂Ag / AgCl @ ZIF-8。物种在紫外线照射下。所有合成样品均通过XRD,SEM,TEM,BET和UV-Vis漫反射光谱进行表征。在可见光照射下,通过降解RhB溶液评估所有合成样品的光催化活性。结果表明,AgCl纳米粒子在ZIF-8晶体中良好分散并镶嵌,AgCl纳米粒子的部分Ag +离子被还原为Ag 0紫外光照射30分钟后,该物种得以合成。合成后的Ag / AgCl @ ZIF-8保持了ZIF-8的高表面积,并具有出色的Ag / AgCl的光性能。在可见光照射下,通过降解RhB溶液评估所有合成样品的光催化活性。Ag / AgCl @ ZIF-8表现出最高的光催化活性,可降解99.12%的RhB。Ag / AgCl和ZIF-8的协同作用使Ag / AgCl @ ZIF-8可以用于利用阳光降解有机染料。
更新日期:2019-11-04
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