摘要
利用NaBH_4和L-半胱氨酸(L-Cys),采用一种简单的还原方法合成了L-Cys-β-CD@A NPs纳米粒子.研究了L-Cys-β-CD@AuNPs对4-硝基苯酚和4-硝基-1-萘酚的还原催化活性,结果表明:L-Cys-β-CD@AuNPs纳米粒子对4-硝基苯酚和4-硝基-1-萘酚的还原活性不同,由于β-环糊精(β-CD)与不同客体分子的选择性结合,对不同底物具有不同的催化活性.实验结果表明, L-Cys-β-CD@AuNPs对4-硝基-1-萘酚的还原反应效率优于对硝基苯酚.
L-Cys-β-CD@AuNPs nanoparticles were synthesized by a simple method of the reduction of HAuCl4 with NaBH4 and L-Cys-CD.The catalytic activity of L-Cys-β-CD@AuNPs nanoparticles for the catalytic reductions of 4-nitrophenol and 4-nitro-1-naphthol was researched in detail.Because of the selective binding of β-cyclodextrin(β-CD) to different guest molecules,L-Cys-β-CD@AuNPs exhibits diverse catalytic activities for different substrates.The experimental results prove that L-Cys-β-CD@Au NPs shows better catalytic efficiency for the reduction of 4-nitro-1-naphthol than p-nitrophenol.
作者
张薇
邓维
Zhang Wei;Deng Wei(Sehool of Materials Science and Engineering,Shanghai University,Shanghai 200444;School of Chemical and Engineering,Shanghai Institute of Technology,Shanghai 201418)
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2018年第11期3002-3008,共7页
Chinese Journal of Organic Chemistry
基金
Project supported by the Shanghai Municipal Education Commission(Plateau Discipline Construction Program)
the Shuguang Scholar of Shanghai Municipal Education Commission(No.16SG49)
the National Science Foundation of China(Nos.21601125,21174081)
the Natural Science Foundation of Shanghai City(No.16ZR1435700)
the Shuguang Scholar Project
Start-up Funding of Shanghai Institute of Technology(No.YJ-201610)~~
关键词
Β-环糊精
催化
金纳米粒子
分子选择性
有机-无机杂化材料
β-cyclodextrin
catalysis
gold nanoparticles
molecular selectivity
organic-inorganic hybrid materials
