Imidazolium functionalized NT-Im-Au-Ag hybrids for surface-enhanced Raman scattering and catalytic reduction of 4-nitrophenol

doi:10.1016/j.apcata.2014.03.026

CORC > 化学研究所 > 中国科学院化学研究所

	Imidazolium functionalized NT-Im-Au-Ag hybrids for surface-enhanced Raman scattering and catalytic reduction of 4-nitrophenol
	Wu, Xiao 1; Qiu, Lihua 1; Yang, Zhenzhong2 ; Yan, Feng 1
刊名	APPLIED CATALYSIS A-GENERAL
	2014-05-20
卷号	478 页码:30-37
关键词	Au-ag Nanoparticles Sers 4-nitrophenol Oxygen Reduction
ISSN号	0926-860X
DOI	10.1016/j.apcata.2014.03.026
英文摘要	A facile and effective procedure for the preparation of poly(divinybenzene-co-chloromethylstyrene) (poly(DVB-co-VBC)) nanotube/Au-Ag nanoparticle composite (NT-Im-Au-Ag) via using covalently attached imidazolium as linkers was reported. The approach involves the surface functionalization of poly(DVB-co-VBC) NTs with imidazolium cation, anion-exchange with Au precursor (HAuCl4) and followed by the reduction of metal ions. The obtained NT-lm-Au nanoparticle composite was further used as the seeds to produce NT-Im-Au-Ag nanoparticle composite. The morphology and optical properties of the produced nanohybrids were characterized by transmission electron microscopy (TEM), energy dispersive X-ray (EDX) spectroscopy. The as-prepared NT-Im-Au-Ag nanohybrids show an extremely suitable substrate for surface-enhanced Raman spectroscopy (SERS) with a high enhancement factor of 6.7 x 10(7), enabling the detection of 10(-12) M Rhodamine 6G solution. The catalytic performance of NT-Im-Au-Ag nanohybrids was studied by the reduction of 4-nitrophenol with NaBH4 as a reducing agent. Their reaction rate constant was calculated according to the pseudo-first-order reaction equation. (C) 2014 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000336878800005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52135]
专题	中国科学院化学研究所
通讯作者	Yang, Zhenzhong
作者单位	1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Dept Polymer Sci & Engn, Jiangsu Key Lab Adv Funct Polymer Design & Applic, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xiao,Qiu, Lihua,Yang, Zhenzhong,et al. Imidazolium functionalized NT-Im-Au-Ag hybrids for surface-enhanced Raman scattering and catalytic reduction of 4-nitrophenol[J]. APPLIED CATALYSIS A-GENERAL,2014,478:30-37.
APA	Wu, Xiao,Qiu, Lihua,Yang, Zhenzhong,&Yan, Feng.(2014).Imidazolium functionalized NT-Im-Au-Ag hybrids for surface-enhanced Raman scattering and catalytic reduction of 4-nitrophenol.APPLIED CATALYSIS A-GENERAL,478,30-37.
MLA	Wu, Xiao,et al."Imidazolium functionalized NT-Im-Au-Ag hybrids for surface-enhanced Raman scattering and catalytic reduction of 4-nitrophenol".APPLIED CATALYSIS A-GENERAL 478(2014):30-37.