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ZnO/Al2O3复合纳米颗粒的制备与表征

CHINA POWDER SCIENCE AND TECHNOLOGY(2005)

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Abstract
为研究ZnO/Al2O3复合纳米颗粒在涂料、化妆品等领域的应用,采用直接沉淀法制备了纳米ZnO,用硫酸铝水解生成的Al2O3对纳米ZnO进行了表面改性.采用IR、TEM、SEM、XRD等手段对改性前后的粉体进行表征.分析结果表明,改性后粉体颗粒的团聚现象减轻.粉体的光催化降解甲基橙的实验研究表明,改性后ZnO粉体的光催化活性明显下降,进一步证明纳米ZnO颗粒表面存在Al2O3的包覆层.
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