(AgBr)核·(Ag)壳纳米粒子的制备及其共振散射光谱研究

doi:10.7517/j.issn.1674-0475.2002.06.429

影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (6): 429-434.DOI: 10.7517/j.issn.1674-0475.2002.06.429

(AgBr)_核·(Ag)_壳纳米粒子的制备及其共振散射光谱研究

凌绍明, 谭历生, 沈文闻, 隆金桥

广西右江民族师范高等专科学校, 化学系, 百色, 533000

收稿日期:2002-02-25 修回日期:2002-06-12 出版日期:2002-11-23 发布日期:2002-11-23
通讯作者: 谭历生,Tel:0776-2848090

THE PREPARATION OF(AgBr)_core·(Ag)_shell NANOPARTICLE AND ITS RESONANCE SCATTERING SPECTROSCOPIC STUDY

LING Shao-ming, TAN Li-sheng, SHEN Wen-wen, LONG Jin-qiao

Department of Chemistry, Guangxi You Jiang Teachers College for Nationalities, Baise 533000, P. R. China

Received:2002-02-25 Revised:2002-06-12 Online:2002-11-23 Published:2002-11-23

摘要/Abstract

摘要： 以(AgBr)_m团簇作晶种,在柠檬酸钠存在条件下,(AgBr)_m团簇表面结合的Ag⁺被光化学还原而获得土红色的液相(AgBr)_核·(Ag)_壳纳米粒子.研究了(AgBr)_核·(Ag)_壳纳米粒子的光谱特性,在512 nm处有最强共振散射峰,在410 nm处产生一个吸收峰.结果表明,(AgBr)_核·(Ag)_壳纳米粒子的形成是导致512 nm共振光散射的根本原因.

关键词: 液相(AgBr)_核·(Ag)_壳纳米粒子, 光化学制备, 共振散射光谱

Abstract: Under the conditions of (AgBr)_m crystal seed and tri sodium citrate photoreducer,the Ag⁺ ions on the surface of (AgBr)_m crystal seed reduce to Ag photochemically.And thus soil red (AgBr)_core·(Ag)_shell nanoparticles were obtained.The mean diameter is 25 nm for (AgBr)_core·(Ag)_shell and 100 nm for (AgBr)_m .It exhibits a strongest resonance scattering peak at 512 nm,and an absorption peak at 410 nm.The effect of illumination time,AgNO₃,NaBr and tri sodium citrate concentration on the I_{512 nm},and A_{410 nm} has been studied.The results indicate that the formation of (AgBr)_core·(Ag)_shell nanoparticle is the fundamental cause for the appearence of resonance scattering peak at 512 nm.

Key words: liquid(AgBr)_core·(Ag)_shell nanoparticle, potochemical approach, resonance scattering spectrum

中图分类号:

凌绍明, 谭历生, 沈文闻, 隆金桥. (AgBr)_核·(Ag)_壳纳米粒子的制备及其共振散射光谱研究[J]. 影像科学与光化学, 2002, 20(6): 429-434.

LING Shao-ming, TAN Li-sheng, SHEN Wen-wen, LONG Jin-qiao. THE PREPARATION OF(AgBr)_core·(Ag)_shell NANOPARTICLE AND ITS RESONANCE SCATTERING SPECTROSCOPIC STUDY[J]. Imaging Science and Photochemistry, 2002, 20(6): 429-434.

参考文献

[1] 朱梓华,朱涛,刘忠范.大粒径单分散金钠米粒子的水相合成[J].物理化学学报,1999,11:966-969.Zhu Z H,Zhu T,Liu Z F.Preparation of gold sols of large size particles[J].Acta Physico-Chimca Sinica,1999,11:966-969.
[2] 黄黎中,王瑛,王永立.贵金属胶体及其应用[J].贵金属,1997,18(3):58-61.Huang L Z,Wang Y,Wang Y L.Colloidal precious metals and its application[J].Precious Metals,1997,18(3):58-61.
[3] Garrell R L.Surface-enhanced Raman spectrascopy[J].Anal.Chem.,1989,61:401R-418R.
[4] 李亚东,贺蕴普,钱逸泰.银纳米粒子的制备及表面特征研究[J].化学物理学报,1999,12:465-470.Li Y D,He Y P,Qian Y T.Studying of the surface phenomenon of nanocrystalline[J].Chinese J.of Chem.Phys.,1999,12:465-470.
[5] 徐相凌,倪永红.水溶液中银团簇的生长,稳定与物化性质[J].化学进展,1999,11:239-246.Xu X L,Ni Y H.The formation,stabilization and physico-chemical properties of silver clusters in aqueous solution[J].Progress in Chemistry,1999,11:239-246.
[6] 王柳萍,蒋治良.银(I)-苯羟乙酸光化学反应的共振散射光谱研究[J].分析测试技术与仪器,2000,6(1):21-24.Wang L P,Jiang Z L.Resonance scattering spectroscopic study on the photochemical system of Ag(I)-benzinic acid[J].Analytical Testing Technology and Instruments,2000,6(1):21-24.
[7] 钟福新,蒋治良,梁宏,等.纳米银胶的光化学制备及其共振散射光谱研究[J].光谱学与光谱分析,2000,20(5):724-726.Zhong F X,Jiang Z L,Liang H,et al.The preparation of nanometer silver colloid by photochemical method and its resonance scattering spectroscopic study[J].Spectroscopy and Spectral Analysis,2000,20(5):724-726.
[8] 蒋治良,钟福新,等.绿色银纳米粒子的共振散射光谱研究[J].化学学报,2001,59(3):438-441.Jiang Z L,Zhong F X,et al.Study on the resonance scattering spectra of green silver nanoparticles[J].Acta Chimica Sinica.2001,59(3):438-441.
[9] 冯忠伟,蒋治良,等.Ag/Au复合纳米粒子的制备[J].贵金属,2001,22(1):17-20.Feng Z W,Jiang Z L,et al.The Preparation of Ag/Au compound nanoparticles[J].Precious Metals,2001,22(1):17-20.
[10] 凌绍明,蒋治良,等.Ag/AgCl纳米粒子的制备及其共振散射光谱研究[J].光谱学与光谱分析,2001,21(6):819-821.Ling S M,Jiang Z L,et al.The preparation of Ag/AgCl nanoparticles and its resonance scattering spectroscopic study[J].Spectroscopy and Spectral Analysis,2001,21(6):819-821.
[11] Liang H,Shen X C,Jiang Z L.The photochemical reaction of HAS and its resonance scattering spectral study[J].Chinese Chemical Letters,2000,11(2):247-250.
[12] 蒋治良,李芳,梁宏.磷钼杂多酸-罗丹明S体系的共振散射光谱研究[J].化学学报,2000,58(8):1059-1062.Jiang Z L,Li F,Liang H.Resonance scattering spectroscopic study of the system of PMo₁₂ and Rhodamin S[J].Acta Chimica Sinica,2000,58(8):1059-1062.
[13] 钟福新,蒋治良,李芳,等.绿色和黄色银胶的光化学制备及其共振散射光谱研究[J].感光科学与光化学,2001,19(1):13-18.Zhong F X,Jiang Z L,Li F,et al. Photochemical preparation of green silver and yellow silver colloid and their resonance scattering spectroscopic study[J].Photographic Science and Photochemistry,2001,19(1):13-18.
[14] 蒋治良,李芳,梁宏.Ag-结晶紫的表面增强共振散射光谱研究[J].分析测试技术与仪器,2000,6(2):98-100.Jiang Z L,Li F,Liang H.Surface-enhanced resonance scattering spectroscopic study of the Ag-crystal violet[J].Analytical Testing Technology and Instruments,2000,6(2):98-100.
[15] Jiang Z L,Liu X H,et al.Novel photochemical voltammetric method for the determination of iron in tea[J].Anal Chim.Acta,1997,354:359-364.
[16] 蒋治良,冯忠伟,李廷盛等.金纳米粒子的共振散射光谱[J].中国科学,B辑,2001,31(2):183-188.Jiang Z L,Feng Z W,Li T S,et al.Resonance scattering spectra of gold nanoparticle[J].Science in China,series B,2001,31(2):183-188.
[17] Jiang Z L,Feng Z W,Jiang Y M,et al.Microwave high-pressure synthesis of titania nanoparticles and its resonance scattering spectroscopic study[J].Chemical Journal on Internet,2001,3(4):17-20.
[18] 蒋治良,刘绍璞,刘庆业.碳纳米微粒的共振散射光谱研究[J].应用化学,2002,19(1):22-25.Jiang Z L,Liu S P,Liu Q Y.Resonance scattering spectroscopy of fluid carbon nanoparticle[J].Chin.J.Appl.Chem.,2002,19(1):22-25.
[19] 蒋治良,李芳,李廷盛.共振散射光强度与金粒子粒径的关系[J].高等学校化学学报,2000,21(10):1488-1490.Jiang Z L,Li F,Li T S.The relationship between resonance scattering intensity and the size of Au particles[J].Chem.J.Chin.Universities,2000,21(10):1488-1490.

(AgBr)_核·(Ag)_壳纳米粒子的制备及其共振散射光谱研究

THE PREPARATION OF(AgBr)_core·(Ag)_shell NANOPARTICLE AND ITS RESONANCE SCATTERING SPECTROSCOPIC STUDY

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(AgBr)_核·(Ag)_壳纳米粒子的制备及其共振散射光谱研究

THE PREPARATION OF(AgBr)_core·(Ag)_shell NANOPARTICLE AND ITS RESONANCE SCATTERING SPECTROSCOPIC STUDY