优化Ag修饰的ZnO/Zn(OH)2纳米颗粒用于RhB降解的结构和光催化性能,International Journal of Applied Ceramic Technology

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优化Ag修饰的ZnO/Zn(OH)2纳米颗粒用于RhB降解的结构和光催化性能
International Journal of Applied Ceramic Technology ( IF 1.8 ) Pub Date : 2024-01-09 , DOI: 10.1111/ijac.14675
Erman Erdogan ₁ , Cigdem Eden ₂ , Nurtac Canpolat ₃ , Cagri Cirak ₄ , Mehmet Yilmaz ₅

Affiliation

在这项研究中，使用溶胶-凝胶技术获得了所制备的Ag修饰的ZnO/Zn(OH) ₂复合纳米粒子(NPs)。首先，研究了老化对结构、光学和形态特征的影响。 Ag NPs 可以与 ZnO/Zn(OH) ₂ NPs的电子结构相互作用，导致其能级发生变化。 X射线衍射（XRD）测量发现，固溶老化6小时后获得的复合纳米粒子的半峰全宽增加，且结构结晶度良好。拉曼光谱支持从包含ZnO和Zn(OH) ₂的混合物的材料的XRD和傅里叶变换红外获得的实验数据。从形貌研究来看，Ag NPs成功修饰在ZnO/Zn(OH) ₂表面，并且复合NPs没有改变结构的形貌。其次，研究了样品的光催化性能。在实验设置中，采用紫外A光作为照射源，而罗丹明B（RhB）作为染料。对于老化 6 小时和 2 小时的样品，复合纳米粒子上的 RhB 染料的光降解率分别为 98.5% 和 92.5%。在Ag NPs上，180分钟后样品的催化性能提高至95%。

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Optimizing the structural and photocatalytic performance of Ag-decorated ZnO/Zn(OH)2 nanoparticles for RhB degradation

In this study, as-prepared and Ag-decorated ZnO/Zn(OH)₂ composite nanoparticles (NPs) were obtained using the sol–gel technique. First, the effect of aging on the structural, optical, and morphological features was examined. Ag NPs can interact with the electronic structure of ZnO/Zn(OH)₂ NPs, resulting in changes in their energy levels. It was found that the composite NPs obtained after 6 h solution aging increased in full width at half maximum and good crystallinity of the structures from the X-ray diffraction (XRD) measurements. The Raman spectrum supports the experimental data obtained from XRD and Fourier transform infrared, a material containing a mixture of ZnO and Zn(OH)₂. From the morphological study, Ag NPs were successfully decorated on the ZnO/Zn(OH)₂ surface, and composite NPs did not change the morphological appearance of the structure. Second, the photocatalytic performance of the samples was investigated. In the experimental setting, ultra-violet A light was employed as the irradiation source, whereas rhodamine B (RhB) was used as the dyestuff. The photo-degradation of the RhB dyestuff on composite NPs was observed to be 98.5% and 92.5% for 6 and 2 h aged samples, respectively. On Ag NPs, the catalytic performance of the sample was increased up to 95% after 180 min.

更新日期：2024-01-09

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