HFCAS OpenIR  > 中科院固体物理研究所
Temperature regulation growth of Au nanocrystals: from concave trisoctahedron to dendritic structures and their ultrasensitive SERS-based detection of lindane
Zhou, Xia4,5,6; Zhao, Qian4,5; Liu, Guangqiang4; Zhang, Hongwen4; Li, Yue4; Cai, Weiping4,5
2017-10-21
发表期刊JOURNAL OF MATERIALS CHEMISTRY C
卷号5期号:39页码:10399-10405
摘要A facile temperature regulation strategy is developed for fabrication of Au concave nanocrystals with specific shapes via seed-assisted growth at 25 degrees C or lower. It has been found that the reaction temperature, even with minor changes, can significantly influence the shape of the nanocrystals, which evolves from the concave trisoctahedral to calyptriform, coral and dendritic structures with the decrease of temperature from 25 degrees C to 5 degrees C. The size and optical absorbance spectra of the nanocrystals can be determined just by the addition amount of Au seeds. The formation of the Au concave nanocrystals is attributed to the preferential growth of the nuclei in < 110 > and < 111 > directions, along which the growth rates are of different temperature dependences. Importantly, the concave trisoctahedral and calyptriform Au nanocrystal-built films have exhibited strong surface enhanced Raman scattering (SERS) activity towards the lindane molecules, with the enhancement factor higher than 107, due to their high density of sharp corners/edges or the tip effect. The Raman peak intensity versus lindane concentration is subject to a linear double logarithmic relation from 30 ppb to 300 ppm, which is attributed to the Freundlich adsorption of lindane molecules on the Au nanocrystals. This work provides not only a simple route for the fabrication of the Au nanocrystals with various specific structures but also efficient SERS substrates for trace detection of organochlorine pesticide residues.
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
资助者National Key Research and Development Program of China(2017YFA0207101) ; Natural Science Foundation of China(51531006 ; CAS/SAF International Partnership Program for Creative Research Teams ; 11574313 ; 11374300 ; 51571188) ; National Key Research and Development Program of China(2017YFA0207101) ; Natural Science Foundation of China(51531006 ; CAS/SAF International Partnership Program for Creative Research Teams ; 11574313 ; 11374300 ; 51571188)
DOI10.1039/c7tc03808a
关键词[WOS]ENHANCED RAMAN-SPECTROSCOPY ; SHAPE-CONTROLLED SYNTHESIS ; HIGH-INDEX FACETS ; HOLLOW MICROSPHERE ARRAYS ; HOT-SPOTS ; METAL NANOPARTICLES ; GOLD NANORODS ; CORE-SHELL ; ORGANOCHLORINE PESTICIDES ; ELECTROCATALYTIC ACTIVITY
收录类别SCI
语种英语
资助者National Key Research and Development Program of China(2017YFA0207101) ; Natural Science Foundation of China(51531006 ; CAS/SAF International Partnership Program for Creative Research Teams ; 11574313 ; 11374300 ; 51571188) ; National Key Research and Development Program of China(2017YFA0207101) ; Natural Science Foundation of China(51531006 ; CAS/SAF International Partnership Program for Creative Research Teams ; 11574313 ; 11374300 ; 51571188)
WOS研究方向Materials Science ; Physics
WOS类目Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000412827500035
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33805
专题中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Suzhou Univ, Sch Chem & Chem Engn, Suzhou 234000, Anhui, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
5.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
6.Suzhou Univ, Sch Chem & Chem Engn, Suzhou 234000, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Zhou, Xia,Zhao, Qian,Liu, Guangqiang,et al. Temperature regulation growth of Au nanocrystals: from concave trisoctahedron to dendritic structures and their ultrasensitive SERS-based detection of lindane[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(39):10399-10405.
APA Zhou, Xia,Zhao, Qian,Liu, Guangqiang,Zhang, Hongwen,Li, Yue,&Cai, Weiping.(2017).Temperature regulation growth of Au nanocrystals: from concave trisoctahedron to dendritic structures and their ultrasensitive SERS-based detection of lindane.JOURNAL OF MATERIALS CHEMISTRY C,5(39),10399-10405.
MLA Zhou, Xia,et al."Temperature regulation growth of Au nanocrystals: from concave trisoctahedron to dendritic structures and their ultrasensitive SERS-based detection of lindane".JOURNAL OF MATERIALS CHEMISTRY C 5.39(2017):10399-10405.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Temperature regulati(2283KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhou, Xia]的文章
[Zhao, Qian]的文章
[Liu, Guangqiang]的文章
百度学术
百度学术中相似的文章
[Zhou, Xia]的文章
[Zhao, Qian]的文章
[Liu, Guangqiang]的文章
必应学术
必应学术中相似的文章
[Zhou, Xia]的文章
[Zhao, Qian]的文章
[Liu, Guangqiang]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Temperature regulation growth of Au nanocrystals_ from concave trisoctahedron to dendritic structures and their ultrasensitive SERS-based detection of lindane.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。