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氧化锌(ZnO)纳米材料因其在UV激光器、发光二极管、太阳能电池、稀磁半导体、生物荧光标示、靶向药物等领域中的广泛应用而成为最热门的研究课题之一.调节和优化ZnO纳米结构的性质是ZnO的实际应用迫切所需.在此,通过发展聚乙烯吡咯烷酮导向结晶法、微波加热强制水解法、表面活性剂后处理法,成功地制备出了尺寸、表面电荷或成分可调的球、半球、棒、管、T型管、三脚架、片、齿轮、两层、多层、带盖罐子、碗等一系列ZnO纳米结构.通过简单地改变ZnO纳米粒子的尺寸、形貌和表面电荷或成分,有效地调控ZnO本身的发光强度和位置,并近90倍地增强了荧光素染料的荧光强度;诱使了强度可调的室温铁磁性;实现了对ZnO纳米颗粒的细胞毒性的系统性调控.
Zinc oxide (ZnO) nanomaterials have become one of the hottest research topics because of their wide application in UV lasers, LEDs, solar cells, dilute magnetic semiconductors, bioluminescence labeling, and targeted drugs. The nature of the nanostructures is urgently needed for the practical application of ZnO, where the size, surface charge or composition can be successfully prepared by developing a polyvinylpyrrolidone-guided crystallization method, a microwave heating forced hydrolysis method, and a surfactant post-treatment method A series of ZnO nanostructures such as balls, hemispheres, rods, tubes, T-tubes, tripods, plates, gears, two layers, multiple layers, lidded jars, bowls, etc. By simply changing the size, morphology And surface charges or components, effectively controlling the emission intensity and position of ZnO itself, and nearly 90 times the fluorescence intensity of the fluorescein dye; inducing the intensity-adjustable room-temperature ferromagnetism; achieving the realization of the ZnO nanoparticles nanoparticles Systematic regulation of toxicity.