One-dimensional nanocrystalline semiconductors have been comprehensively studied because of their fascinating properties and practical applications in various fields. However, exploring a facile preparation technique and improving and optimizing current performance remain big challenges. In this work, zinc oxide (ZnO) nanocrystals with different one-dimensional structures, ranging from multi-armed nanorods and rough nanorods to nanowires, have been successfully synthesized via a facile solvothermal strategy in a hexalene glycol–H₂O reaction system. The variations in the crystal phase and the structure of the ZnO nanocrystals are investigated in detail by using powder X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The effects of different ZnO structures on the catalytic ability were evaluated through the photodegradation of an antibiotic, ciprofloxacin, and an organic dye, Rhodamine B, under simulated solar light irradiation. The photocatalysis system constructed from the multi-armed ZnO nanorod photocatalyst shows superior efficiency compared to the ZnO nanorods and nanowires. This enhancement in the photocatalytic ability of the ZnO multi-armed nanorods compared to other nanostructures is attributed mainly to their unique structure, efficient electron–hole separation, and faster charge transport, on the basis of photoluminescence spectra, and photocurrent, and electrochemical impedance spectroscopy measurements.

中文翻译：

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对简单设计的一维氧化锌纳米晶体对光催化水净化的结构诱导催化依赖性的见解

一维纳米晶体半导体因其引人入胜的性能和在各个领域的实际应用而得到了广泛的研究。然而，探索一种简便的制备技术并改善和优化当前性能仍然是巨大的挑战。在这项工作中，已经通过一种容易的溶剂热策略在六烯二醇H _2中成功合成了具有不同一维结构的氧化锌（ZnO）纳米晶体，其范围从多臂纳米棒，粗糙纳米棒到纳米线。O反应系统。使用粉末X射线衍射，扫描电子显微镜和透射电子显微镜详细研究了ZnO纳米晶体的晶相和结构变化。在模拟太阳光照射下，通过抗生素环丙沙星和有机染料若丹明B的光降解作用，评估了不同ZnO结构对催化能力的影响。与ZnO纳米棒和纳米线相比，由多臂ZnO纳米棒光催化剂构建的光催化系统显示出更高的效率。与其他纳米结构相比，ZnO多臂纳米棒的光催化能力增强主要归因于其独特的结构，有效的电子-空穴分离以及更快的电荷传输，