| 摘要: |
| 针对涂料中氧化亚铜纳米颗粒作为防污剂在海水中存在释放速率不稳定的问题，采用化学还原法，通过控制溶液中葡萄糖的浓度和pH值制备出具有不同形状和粒径的氧化亚铜纳米颗粒，利用扫描电子显微镜（SEM）、X射线衍射仪（XRD）以及动态光散射粒度分析仪（DLS）表征所合成的氧化亚铜纳米颗粒的形状、粒径以及物相，利用电感耦合等离子体发射光谱仪（ICP）考察多种形状和粒径的氧化亚铜纳米颗粒在人工海水中的释放速率。结果表明：对于形状而言，球形释放速率最快，其次为正八面体，立方形释放速率最慢；在同一形状下，粒径越小释放速率越快，其中球形粒径在398.5 nm的释放速率最快，立方形粒径在801.5 nm的氧化亚铜释放速率最慢。 |
| 关键词: 氧化亚铜 形状 粒径 释放速率 |
| DOI：10.11933/j.issn.1007-9289.2015.02.017 |
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| Preparation of Cu2O Nanoparticles and Their Release Rate Determination |
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WANG Jiaxing, ZHANG Jianfeng, ZHAO Wenjie, LI Yuan, LI He, ZENG Zhixiang, WU Xuedong1,2
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1a. Key Laboratory of Marine Materials and Related Technologies, 1b. Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang;2. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang
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| Abstract: |
| To resolve the problem that the release rate of cuprous oxide is not constant in seawater when used as antifouling reagent, a chemical reduction method was used to prepare the cuprous oxide nanoparticles with various shapes and sizes by controlling the concentration of glucose and pH. SEM, XRD and dynamic light scattering (DLS) particle size analyzer were used to characterize the shape, size and composition of the synthesized cuprous oxide nanoparticles. The release rate of cuprous oxide nanoparticles in the artificial seawater was monitored by inductively coupled plasmaatomic(ICP) emission spectrometer. The results show that the release rate of spherical shape is the greatest, followed by octahedral shape, and then cubic shape; for the same shape, the smaller the particle size is, the greater the release rate is. The spherical cuprous oxide with a size of 398.5 nm releases copper ions the fastest, and cubic shape with a size of 801.5 nm releases copper ions the slowest. |
| Key words: cuprous oxide(Cu2O) shape particle size release rate |
