| PVA软模板法制备纳米硒 |
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| 引用本文： | 史洪伟,王红艳,张莉.PVA软模板法制备纳米硒[J].安徽大学学报(自然科学版),2009,33(5). |
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| 作者姓名： | 史洪伟 王红艳 张莉 |
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| 作者单位： | 宿州学院,化学与生命科学系,安徽,宿州,234000 |
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| 基金项目： | 国家自然科学基金资助项目，安徽省教育厅自然科学研究计划基金资助项目，安徽省高校青年教师科研基金资助项目 |
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| 摘 要： | 采用维生素C还原亚硒酸的方法,在聚乙烯醇(PVA)作软模板的水溶液中制备出不同形貌的纳米硒.分别讨论纳米硒制备过程中的主要影响因素,如还原剂浓度、模板剂用量、超声作用等条件对纳米硒形貌的影响.室温条件下,无超声作用产物的主要形貌是球形;而在超声条件下,产物的形貌是棒形.温度稍高时,一般反应条件下就可以得到棒状的纳米硒.实验研究表明,制备稳定的纳米硒的条件为:溶液中亚硒酸与还原剂的物质的量之比为1∶5;控制不同的反应温度可制得不同形貌的纳米硒.
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| 关 键 词： | 纳米硒 软模板 PVA |
Synthesis of Se-nonaparticals by PVA soft template |
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| SHI Hong-wei,WANG Hong-yan,ZHANG Li.Synthesis of Se-nonaparticals by PVA soft template[J].Journal of Anhui University(Natural Sciences),2009,33(5). |
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| Authors: | SHI Hong-wei WANG Hong-yan ZHANG Li |
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| Institution: | SHI Hong-wei,WANG Hong-yan,ZHANG Li(Department of Chemistry , Biology,Suzhou College,Suzhou 234000,China) |
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| Abstract: | In the paper, we reported on the preparation of Se-nonapaticals by using H_2SeO_3 as precursor, Vc as reducing reagent and PVA as soft template. The effect of the Vc and the PVA on the prize and shape of the Se-nonapaticals was discussed. Different shapes of Se-nonapaticals could be formed by controlling temperature. Under low temperature, the shape of Se-nonapaticals was sphere and under higher temperature, the shape of the Se-nonapaticals was rod. The best reaction ratio of Vc and H_2SeO_3 was 5:1. |
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| Keywords: | PVA Se-nonapaticals soft template PVA |
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