Citation: Yong-Yan GUO, Yan-Fei TIAN, Ming-Ming DANG, Ping YANG, Yun-Fei LONG. Preparation of Thiourea Coordinated Chromium Black T Stabilized Silver Nanoclusters under Alkaline Environment[J]. Chinese Journal of Applied Chemistry, ;2021, 38(2): 195-201. doi: 10.19894/j.issn.1000-0518.200174 shu

Preparation of Thiourea Coordinated Chromium Black T Stabilized Silver Nanoclusters under Alkaline Environment

1.
Public Education Department, Hu'nan Nonferrous Metals Vocational and Technical College, Zhuzhou 412006, China
2.
School of Chemistry and Chemical Engineering, Hu'nan University of Science and Technology, Xiangtan 411201, China

Corresponding author: Yun-Fei LONG, l_yunfei927@163.com
Received Date: 8 June 2020
Accepted Date: 30 September 2020

Fund Project: the National Natural Science Foundation of China 21275047the Natural Science Foundation of Hu′nan Province 2016JJ5005

Figures(9)

Silver nanoclusters have a wide range of application prospects because they have special physical and chemical properties. Since they are prone to agglomeration, it is of great significance to explore the method of preparing silver nanoclusters with strong fluorescence, high stablility and small particle sizes. A method for the rapid preparation of silver nanoclusters in alkaline environment with chromium black T as stabilizer and thiourea as coordination stabilizer was developed in this paper. Under the optimal conditions, the average particle size of the prepared silver nanoclusters is 1.67 nm, the particle size is mainly in the range of 0.74~3.33 nm, the lattice spacing is 0.2157 nm, and the lattice type is (102). The maximum excitation wavelength is 380 nm, the maximum emission wavelength is 463 nm, and the quantum yield is 1.64%.
- Silver nanoclusters,
- Alkaline environment,
- Thiourea,
- Chromium black T
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沈阳化工大学材料科学与工程学院沈阳 110142