| 吸附法制备CuO-Ag/SiO2纳米复合物 |
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| 引用本文： | 邓 辉,蒋 新. 吸附法制备CuO-Ag/SiO2纳米复合物[J]. 无机化学学报, 2011, 27(1): 119-124 |
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| 作者姓名： | 邓 辉 蒋 新 |
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| 作者单位： | 浙江大学化学工程与生物工程学系,杭州,310027 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 利用吸附法原位制备CuO/SiO2、CuO-Ag/SiO2纳米复合物,研究了不同吸附质体系中预负载的纳米Ag粒子对CuO的影响。结果表明:Ag粒子对CuO的影响因吸附质的不同而不同。以Cu(Ac)2为吸附质,纳米Ag几乎没有影响;以NaOH为吸附质,纳米Ag使得CuO的晶粒粒径增大。这一结果与铜物种对Ag晶粒粒径的影响规律完全不同。通过比较不同吸附质的吸附行为,Cu(OH)2与硅胶表面的相互作用被认为是导致这一现象的原因。
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| 关 键 词： | 吸附相反应 CuO/SiO2 CuO-Ag/SiO2 |
Preparation of CuO-Ag/SiO2 Nano-Composites via Adsorption Phase Reaction Technique |
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| DENG Hui and JIANG Xin. Preparation of CuO-Ag/SiO2 Nano-Composites via Adsorption Phase Reaction Technique[J]. Chinese Journal of Inorganic Chemistry, 2011, 27(1): 119-124 |
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| Authors: | DENG Hui and JIANG Xin |
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| Affiliation: | Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China and Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | CuO/SiO2, CuO-Ag/SiO2 nanocomposites were in-situ synthesized via adsorption phase reaction technique. The influence of pre-doped nano-Ag on the preparation of CuO was discussed in different reaction systems. The results showed that the influence of Ag nanoparticles on the synthesis of CuO depended on the species of the adsorbent. Using Cu(Ac)2 as adsorbent, nano Ag showed little effect on the synthesis of CuO, while using NaOH as adsorbent, nano Ag promoted the grain size of CuO. This was absolutely different from the influence of copper species on the grain size of Ag. Via comparing the adsorption behavior of different adsorbents, the interaction between Cu(OH)2 and silica surface was considered to be responsible for this phenomena. |
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| Keywords: | adsorption phase reaction technique CuO/SiO2 CuO-Ag/SiO2 |
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