Series of MxWO3/ZnO (M = K, Rb, NH4) nanocomposites: Combination of energy saving and environmental decontamination functions
Series of MxWO3/ZnO (M = K, Rb, NH4) nanocomposites: Combination of energy saving and environmental decontamination functions
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DOI：
10.1016/j.apcatb.2016.08.030
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发表时间：
2017-02
影响因子：
22.1
通讯作者：
Xiaoyong Wu;Junting Wang;Gaoke Zhang;Ken‐ichi Katsumata;K. Yanagisawa;Tsugio Sato;S. Yin
中科院分区：
文献类型：
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作者：
Xiaoyong Wu;Junting Wang;Gaoke Zhang;Ken‐ichi Katsumata;K. Yanagisawa;Tsugio Sato;S. Yin
采用简单的两步法在温和条件下成功制备了一系列新型MxWO 3/ZnO（M = K，Rb，NH 4）纳米复合材料。所制备的MxWO 3/ZnO复合薄膜具有良好的紫外光阻挡性能、维斯光透过性能和近红外光屏蔽性能。此外，通过调节MxWO 3含量和薄膜厚度，可以调节复合材料的光学性能。特别是，少量RbxWO 3的RbxWO 3/ZnO显示出良好的光学性能和优异的热稳定性。从实际应用的角度来看，模拟实验发现，用样品膜作为智能窗装饰的模拟房屋具有良好的近红外光诱导隔热节能效果，其中RbxWO 3/ZnO装饰的效果甚至优于ITO。此外，粉末和薄膜样品在紫外光照射下均表现出较高的连续有毒NO气体分解能力。样品的多功能性机制与极化子跃迁、局域表面等离子体共振（LSPR）和合适的带隙有关。因此，新型MxWO 3/ZnO复合材料及其薄膜不仅具有良好的紫外光吸收、高维斯亮度、优异的近红外光诱导隔热性能，而且具有良好的光分解有毒NO气体的性能，在节能减排和环境治理方面具有广阔的前景。
Series of new MxWO3/ZnO (M = K, Rb, NH4) nanocomposites were successfully prepared by simple two-steps method in a mild condition. The as-prepared MxWO3/ZnO composite films showed nice UV light blocking, VIS light transmittance and NIR light shielding properties. Furthermore, the optical properties of the composites could be tuned by adjusting the MxWO3content and film thickness. Particularly, the RbxWO3/ZnO with small amounts of RbxWO3contents exhibited the promising optical properties and also excellent thermal stability. From the practical application viewpoint, the simulated experiment found that the simulated house decorated with sample film as smart window presented nice NIR light induced heat insulation for energy saving, and the RbxWO3/ZnO decorated one was even better than that of ITO. In addition, both the powder and film samples displayed high continuously toxic NO gas decomposing ability under the UV light irradiation. The mechanisms for the multifunctionality of the samples were related to the polaron transition, localized surface plasma resonance (LSPR) and suitable band gaps. Therefore, the new MxWO3/ZnO composites and relevant films not only showed promising harmful UV light absorption, high VIS light brightness, excellent NIR light induced heat insulation, but also nice toxic NO gas photodecomposition property, indicating their brilliant prospect in both of energy saving and environmental cleanup.