Home

Citation: Wang Zhi-Lin, Zheng Qi-Ke, Wu Jie-Qiang. Bi-Exponential Decay of the Luminescence of Electronically Excited Uranyl Ions[J]. Acta Physico-Chimica Sinica, ;1990, 6(02): 139-145. doi: 10.3866/PKU.WHXB19900204 shu

Bi-Exponential Decay of the Luminescence of Electronically Excited Uranyl Ions

1.
Laser Chemistry Laboratory Fudan University

Received Date: 27 August 1988
Available Online: 15 April 1990

The bi-exponential decay of the luminescence of electronically excited uranyl ions in perchloric acid has been investigated with detailed study of the time resolved lu-minescence spectra and Raman spectra of uranium. While the U(Ⅵ) concentration is in the range of 0.01-0. 1 molL~(-1) and the pH is≤1.5, the luminescence decay is sin-gle exponential and the luminescence spectra are independent on the delay time and the U(Ⅵ) concentration with peaks at 488.0, 510.0, and 533.0 nm, which belong toaquo-uranyl ions. While the pH of the solution is increased to higher than 2.8, the luminescence under es bi-exponential decay and the luminescence spectra with 0.2 μs delay time change dramatically with increasing the pH and the U(VI) concentration, and are different from the spectra with 20 μs time delay, which consist of three peaks at 500.0, 518.0, and 538.0 nm. From the thermodynamic data of the hydrolysis of uranyl ions and the dependence of the Raman spectra of U(VI) on the pH and the uranium concentration the later spectra can be identified as the spectra of the dinuclear hydrolysis product of UO~(2+)_2 and (UO_2)_2(OH)~(2+)_2. All the measured time resolved spectra can be fitted to the linear combination of the spectra of aquo-uranyl ions and (UO_2)~(2+)_2(OH)~(2+)_2 satisfatorily. The conclusion that the bi-exponential decay is attributed to UO_2(H_2O)~(2+)_x and (UO_2)_2(OH)~(2+)_2 ions has been withdrawn.
1. [1]
  Cheng Zheng , Shiying Zheng , Yanping Zhang , Shoutian Zheng , Qiaohua Wei . Synthesis, Copper Content Analysis, and Luminescent Performance Study of Binuclear Copper (I) Complexes with Isomeric Luminescence Shift: A Comprehensive Chemical Experiment Recommendation. University Chemistry, 2024, 39(7): 322-329. doi: 10.3866/PKU.DXHX202310131
2. [2]
  Jia-He Li , Yu-Ze Liu , Jia-Hui Ma , Qing-Xiao Tong , Jian-Ji Zhong , Jing-Xin Jian . 洛芬碱衍生物的合成、化学发光与重金属离子检测. University Chemistry, 2025, 40(6): 230-237. doi: 10.12461/PKU.DXHX202407080
3. [3]
  Lin Song , Dourong Wang , Biao Zhang . Innovative Experimental Design and Research on Preparing Flexible Perovskite Fluorescent Gels Using 3D Printing. University Chemistry, 2024, 39(7): 337-344. doi: 10.3866/PKU.DXHX202310107
4. [4]
  Xuyang Wang , Jiapei Zhang , Lirui Zhao , Xiaowen Xu , Guizheng Zou , Bin Zhang . Theoretical Study on the Structure and Stability of Copper-Ammonia Coordination Ions. University Chemistry, 2024, 39(3): 384-389. doi: 10.3866/PKU.DXHX202309065
5. [5]
  Yu Guo , Zhiwei Huang , Yuqing Hu , Junzhe Li , Jie Xu . 钠离子电池中铁基异质结构负极材料的最新研究进展. Acta Physico-Chimica Sinica, 2025, 41(3): 2311015-. doi: 10.3866/PKU.WHXB202311015
6. [6]
  Zeqiu Chen , Limiao Cai , Jie Guan , Zhanyang Li , Hao Wang , Yaoguang Guo , Xingtao Xu , Likun Pan . 电容去离子提锂技术中电极材料的研究进展. Acta Physico-Chimica Sinica, 2025, 41(8): 100089-. doi: 10.1016/j.actphy.2025.100089
7. [7]
  Jianan Zhang , Mengzhen Xu , Jiamin Liu , Yufei He . 面向“双碳”目标的脱氯吸附剂开发研究型综合实验设计. University Chemistry, 2025, 40(6): 248-255. doi: 10.12461/PKU.DXHX202408068
8. [8]
  Yanyang Li , Zongpei Zhang , Kai Li , Shuangquan Zang . Ideological and Political Design for the Comprehensive Experiment of the Synthesis and Aggregation-Induced Emission (AIE) Performance Study of Salicylaldehyde Schiff-Base. University Chemistry, 2024, 39(2): 105-109. doi: 10.3866/PKU.DXHX202307020
9. [9]
  Wenkai Chen , Yunjia Shen , Xiangmeng Kong , Yanli Zeng . Quantum Chemistry Calculation of Key Physical Quantity in Circularly Polarized Luminescence: Introducing an Exploratory Computational Chemistry Experiment. University Chemistry, 2025, 40(3): 83-91. doi: 10.12461/PKU.DXHX202405018
10. [10]
  Yuyao Wang , Zhitao Cao , Zeyu Du , Xinxin Cao , Shuquan Liang . Research Progress of Iron-based Polyanionic Cathode Materials for Sodium-Ion Batteries. Acta Physico-Chimica Sinica, 2025, 41(4): 100035-. doi: 10.3866/PKU.WHXB202406014
11. [11]
  Qin Li , Kexin Yang , Qinglin Yang , Xiangjin Zhu , Xiaole Han , Tao Huang . Illuminating Chlorophyll: Innovative Chemistry Popularization Experiment. University Chemistry, 2024, 39(9): 359-368. doi: 10.3866/PKU.DXHX202309059
12. [12]
  Xuzhen Wang , Xinkui Wang , Dongxu Tian , Wei Liu . Enhancing the Comprehensive Quality and Innovation Abilities of Graduate Students through a “Student-Centered, Dual Integration and Dual Drive” Teaching Model: A Case Study in the Course of Chemical Reaction Kinetics. University Chemistry, 2024, 39(6): 160-165. doi: 10.3866/PKU.DXHX202401074
13. [13]
  Yanting HUANG , Hua XIANG , Mei PAN . Construction and application of multi-component systems based on luminous copper nanoclusters. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2075-2090. doi: 10.11862/CJIC.20240196
14. [14]
  Xian BI , Sisi WANG , Jinyue ZHANG , Yujia PENG , Zhen SHEN , Hua LU . Discovery, development, and perspectives of circularly polarized luminescent materials based on β-isoindigo skeletons. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1049-1057. doi: 10.11862/CJIC.20240456
15. [15]
  Tianyun Chen , Ruilin Xiao , Xinsheng Gu , Yunyi Shao , Qiujun Lu . Synthesis, Crystal Structure, and Mechanoluminescence Properties of Lanthanide-Based Organometallic Complexes. University Chemistry, 2024, 39(5): 363-370. doi: 10.3866/PKU.DXHX202312017
16. [16]
  Borong Yu , Huijiao Zhang , Xinyu Zhang , Xiaoying Li , Shuming Chen , Zhangang Han . The Blue Elf in the Dark: Gradient Science Popularization Experiments on Chemiluminescence. University Chemistry, 2024, 39(9): 295-303. doi: 10.12461/PKU.DXHX202403107
17. [17]
  Zishuo Yi , Peng Liu , Yan Xu . Fluorescent “Chameleon”: A Popular Science Experiment Based on Dynamic Luminescence. University Chemistry, 2024, 39(9): 304-310. doi: 10.12461/PKU.DXHX202311079
18. [18]
  Xiaxue Chen , Yuxuan Yang , Ruolin Yang , Yizhu Wang , Hongyun Liu . Adjustable Polychromatic Fluorescence: Investigating the Photoluminescent Properties of Copper Nanoclusters. University Chemistry, 2024, 39(9): 328-337. doi: 10.3866/PKU.DXHX202308019
19. [19]
  YanYuan Jia , Rong Rong , Jie Liu , Jing Guo , GuoYu Jiang , Shuo Guo . Unity is Strength, and Independence Shines: A Science Popularization Experiment on AIE and ACQ Effects. University Chemistry, 2024, 39(9): 349-358. doi: 10.12461/PKU.DXHX202402035
20. [20]
  Hongxia Yan , Rui Wu , Weixu Feng , Yan Zhao , Yi Yan . Innovation Inspired by Classical Chemistry: Luminescent Hyperbranched Polysiloxanes. University Chemistry, 2025, 40(4): 154-159. doi: 10.12461/PKU.DXHX202409010

Get Citation

PDF

XML

Metrics

PDF Downloads(2308)
Abstract views(2250)
HTML views(17)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return