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PEO-b-P4VP/Yttrium Hydroxide Hybrid Nanotubes as Supporter for Catalyst Gold Nanoparticles
Qian Yang,Dao-yong Chen*
Author NameAffiliationE-mail
Qian Yang The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Sci-ence, Fudan University, Shanghai 200433, China  
Dao-yong Chen* The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Sci-ence, Fudan University, Shanghai 200433, China chendy@fudan.edu.cn 
Abstract:
The adsorption of poly (ethylene oxide)-b-poly(4-vinylpyridine)(PEO-b-P4VP) micelles onto the surface of yttrium hydroxide nanotubes (YNTs) resulted in the hybrid nanotubes with a dense P4VP inner layer and a stretched PEO outer layer surrounding YNTs. The dense P4VP layer was further stabilized by the crosslinking using 1,4-dibromobutane as the crosslinker. Then, the crosslinked hybrid nanotubes (CHNTs) were used as a novel nano supporter for loading the catalyst gold nanoparticles (GNPs) within the crosslinked P4VP layer. The resultant GNPs/CHNTs (GNTs loaded on CHNTs) were applied to catalyze the reduction reaction of p-nitrophenol. The results indicate that this novel nano supporter has advantages such as good dispersity in the suspension, high capacity in loading GNPs (0.87 mmol/g), high catalytic activity of the loaded GNPs (12.9 μmol-1min-1), and good reusability of GNTs/CHNTs.
Key words:  Gold nanoparticle catalyst, Block copolymer, Hybrid nanotube, Reusable, p-Nitrophenol
FundProject:
聚乙二醇-b-聚(4-乙烯基吡啶)/氢氧化钇杂化纳米管在金纳米粒子负载方面的应用
杨倩,陈道勇*
摘要:
利用聚乙二醇-b-聚(4-乙烯基吡啶)(PEO-b-P4VP)胶束在氢氧化钇纳米管(YNTs)表面上的吸附,制备出被致密的P4VP内层和伸展的PEO外层包裹的杂化纳米管. 通过小分子交联剂1,4-二溴丁烷交联P4VP层可进一步稳定其结构. 然后将交联的杂化纳米管(CHNTs)作为金纳米粒子(GNPs)催化剂的新型纳米载体. 金纳米粒子被负载在交联杂化纳米管的P4VP层中(GNPs/CHNTs),并应用于催化对硝基苯酚的还原反应. 结果表明,这种新型的纳米载体在水溶液中具有良好的分散性, 对金纳米粒子有很高的负载效率(0.87 mmol/g),负载的金纳米粒子保持了很高的催化活性(12.9 μmol-1min-1),且GNPs/CHNTs有较好的可重复使用性.
关键词:  金纳米粒子催化剂,嵌段共聚物,杂化纳米管,对硝基苯酚,重复使用
DOI:10.1088/1674-0068/25/03/352-358
分类号: