光谱学与光谱分析 |
|
|
|
|
|
UV-Vis Studies on the Course of Reaction of Au/Ag Alloy Colloid with Hydrogen Tetrachloroaurate(Ⅲ) Hydrate |
JIN Yi-liang, YAO Jian-lin, GU Ren-ao* |
School of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215123, China |
|
|
Abstract Using citrate as protector, Au-Ag alloy nanoparticles with different molar ratios were prepared with hydrazine as the reducer. One plasmon band between monometallic Ag and Au was observed in their UV-Vis spectra. And the peak of alloy shifted linearly with the ratio of Au changing in the alloy. By UV-Vis spectra, the course of reaction of the alloy colloid with HAuCl4 was studied. The result shows that the UV-Vis spectra of the alloy colloid changed regularly with the adding volume of HAuCl4 increasing. And there is a linear interval in it with the change in the calculated ratio of Au. With the former studies, the course can be attributed to the dealloy of Au/Ag alloy.
|
Received: 2008-08-26
Accepted: 2008-11-28
|
|
Corresponding Authors:
GU Ren-ao
E-mail: ragu@suda.edu.cn
|
|
[1] Wang A Q, Chang C M, Mou C Y. J. Phys. Chem. B., 2005, 109:18860. [2] Endo T, Yoshimura T, Esumi K. J. Coll. Interf. Sci.,2005, 286:602. [3] Atwan Mohammed H, Northwood Derek O, Gyenge Elod L. International Journal of Hydrogen Energy,2005, 12: 22. [4] Sun Y G, Xia Y N. J. Am. Chem. Soc., 2004, 126:3892. [5] Hao E, Li S Y, Bailey R C, et al. J. Phys. Chem. B., 2004, 108: 1224. [6] Cui Y, Ren B, Yao J L, et al. J. Phys. Chem. B., 2006, 110:4002. [7] Freeman R G, Hommer M B, Grabar K C,et al. J. Phys. Chem., 1996, 100:718. [8] CUI Yan, GU Ren-ao(崔 颜,顾仁敖). Chem. J. Chinese Universities(高等学校化学学报),2005, 26: 2092. [9] WANG Mei, YAO Jian-lin, GU Ren-ao(王 梅,姚建林,顾仁敖). Chem. J. Chinese Universities(高等学校化学学报),2006, 27(8): 1518.
|
[1] |
YANG Xin1, 2, XIA Min1, 2, YE Yin1, 2*, WANG Jing1, 2. Spatiotemporal Distribution Characteristics of Dissolved Organic Matter Spectrum in the Agricultural Watershed of Dianbu River[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2983-2988. |
[2] |
ZHANG Jiao1, 2, WANG Yuan-zhong1, YANG Wei-ze1, ZHANG Jin-yu1*. Data Fusion of ATR-FTIR and UV-Vis Spectra to Identify the Origin of Polygonatum Kingianum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(05): 1410-1416. |
|
|
|
|