Nano- and micro-oxides are promising materials due to several interesting characteristics such as photocatalytic and antimicrobial role. In this work, zinc oxide nanorods were obtained by microwave-assisted solvothermal process and their photocatalytic performance and action for wood protection against wood-decay fungus was studied. The morphological (scanning electron microscopy and transmission electron microscopy analyses), microstructural (X-ray powder diffraction analysis) and chemical (infrared spectroscopy) characteristics of the oxide-based nanostructures were investigated. Moreover, photocatalytic performance was evaluated using methylene blue and methyl orange. The nanostructured zinc oxide was impregnated to pinewood samples at 1–5% content and tested for decay resistance using a white-rot fungus. Zinc oxide nanorods agglomerated as urchin-like structures presented high crystallinity, high purity, and high photocatalytic activity. Zinc oxide impregnation was effective in improving pinewood decay resistance, yielding similar protection compared to traditional wood preservative.

中文翻译：

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来自微波辅助溶剂热工艺的氧化锌纳米颗粒：光催化性能和用于木材抗木霉真菌的保护

由于光催化和抗菌作用等几个有趣的特性，纳米和微氧化物是很有前途的材料。在这项工作中，通过微波辅助溶剂热法获得氧化锌纳米棒，并研究了它们的光催化性能和对木材腐烂真菌的保护作用。研究了基于氧化物的纳米结构的形态（扫描电子显微镜和透射电子显微镜分析）、微观结构（X 射线粉末衍射分析）和化学（红外光谱）特性。此外，使用亚甲蓝和甲基橙评估光催化性能。将纳米结构的氧化锌以 1-5% 的含量浸渍到松木样品中，并使用白腐真菌测试其抗腐性。团聚为海胆状结构的氧化锌纳米棒具有高结晶度、高纯度和高光催化活性。氧化锌浸渍可有效提高松木的抗腐性，与传统木材防腐剂相比，可提供类似的保护。