一步法制备C-Ni@SiO_2纳米复合材料及其在吸附和催化领域的应用
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- 英文论文题名：A Versatile Strategy of Controlling the nickel coating on Carbon@Silica for protein adsorption and catalytical performance
- 论文作者：丁磊 ; 张彦伟 ; 杨金博 ; 张敏 ; 郑静 ; 徐菁利
- 英文论文作者：Lei Ding ; Min Zhang ; Yanwei Zhang ; Jinbo Yang ; Jing Zheng ; Jingli Xu ; Shanghai University Of Engineering Science
- 年：2016
- 作者机构：上海工程技术大学;
- 论文关键词：核壳结构 ; 多巴胺 ; 镍颗粒 ; 蛋白吸附 ; 对硝基苯酚催化
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：TB33
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：270k
- 原文格式：D
- 会议级别：全国
摘要
在本文中,通过简便一步法制备可控二氧化硅包覆镍盐和多巴胺的聚合物的材料,无需加入任何还原剂经煅烧制得镍颗粒负载于微球C@Si O_2的磁性材料。还原出的镍颗粒粒径可通过改变多巴胺和镍盐的摩尔比和焙烧温度来控制,所制备的C-Ni@Si O_2可催化对硝基苯酚。其中微球C@Si O_2上所负载的镍颗粒不仅可提供磁性性能,而且对含有组氨酸的蛋白有很强的亲和作用,因此可应用于蛋白吸附领域。与传统的热分解方法相比,此合成方法更简便快捷,可有效控制且能应用于大多数模板甚至是多层复合材料。
In this study, a facile one-pot approach is utilized to construct nickel-ion–PDA complex thin coatings on silica spheres, which can be carbonized in inert atmosphere without using any extra reductant to produce robust hybrid nanocomposites with well-dispersed metallic nickel embedded in PDA-derived thin carbon layers on silica spheres. Moreover, the size and density of the nickel nanoparticles could be precisely contrejolled by adjusting the molar ratio of nickel salt to dopamine, or changing the different calcination temperature. The as-prepared C-Ni@SiO_2 was employed as the reaction catalyst to investigate the catalytic performance in the reduction of 4-NP; moreover, the nickel metal decorated on C@SiO_2 spheres was not only used for magnetic support, but also display a strong affinity for His-tagged proteins. The present coating strategy is more simple and precisely controllable compared to the conventional deposition method and it is suitable for most precursors and even for multi-component materials.
In this study, a facile one-pot approach is utilized to construct nickel-ion–PDA complex thin coatings on silica spheres, which can be carbonized in inert atmosphere without using any extra reductant to produce robust hybrid nanocomposites with well-dispersed metallic nickel embedded in PDA-derived thin carbon layers on silica spheres. Moreover, the size and density of the nickel nanoparticles could be precisely contrejolled by adjusting the molar ratio of nickel salt to dopamine, or changing the different calcination temperature. The as-prepared C-Ni@SiO_2 was employed as the reaction catalyst to investigate the catalytic performance in the reduction of 4-NP; moreover, the nickel metal decorated on C@SiO_2 spheres was not only used for magnetic support, but also display a strong affinity for His-tagged proteins. The present coating strategy is more simple and precisely controllable compared to the conventional deposition method and it is suitable for most precursors and even for multi-component materials.
引文
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[2]BARMATOVA M V.;IVANCHIKOVA I D.;KHOLDEEVA O A.;et al.Magnetically separable titanium-silicate mesoporous materials with core-shell morphology:synthesis,characterization and catalytic properties[J].Journal of Materials Chemistry.2009,19(39):7332-9.
[3]CHEN Z.;CAO Y.;QIAN J.;et al.Facile synthesis and stable lithium storage performances of Snsandwiched nanoparticles as a high capacity anode material for rechargeable Li batteries[J].Journal of Materials Chemistry.2010,20(34):7266-71.