A Study on the Fluorescence Properties of New Laser Material-n-B18H22 in SDS Aqueous Solution

Lin-Na Zhang,Chun-Hua Tan,Xu-Guang Huang,Jie Chen,Hong-Yun Meng

doi:10.1155/2019/5160381

Abstract

The effect of anionic surfactant sodium dodecyl sulfate (SDS) on the fluorescence of n-B18H22 was studied. The experimental result revealed that the fluorescence of n-B18H22 was obviously enhanced with the increase of the concentration of SDS, mainly due to the hydrophobic protection of n-B18H22 by SDS. Under the optimum conditions, the fluorescence intensity was proportional to the concentration of n-B18H22 in the range of 0-8.0×10−3 mol·L−1 and 8.0×10−3 mol·L−1-3.3×10−2 mol·L−1, respectively. It was observed that a break appeared in the curve of fluorescence intensity with surfactant concentration. The critical micelle concentration (CMC, 7.9×10−3 mol·L−1) of SDS was obtained from this break point in a good agreement with the reported value. The fluorescence intensity increased initially with time and gradually stabilized. The results form the basis for further study of the properties and application of n-B18H22 in SDS solutions.

Highlights

Micelles are observed when the concentration of the surfactant is above the critical micelle concentration (CMC)
In February 2015, in a stimulation of n-B18H22 cyclohexane solution with a nitrogen laser under λ = 337.1 nm carried out by scientists from Czech Republic and Spain, an efficient and anti-laser light source was discovered to radiate under λ = 406 nm [15]
The fluorescence intensity of n-B18H22 increased as the sodium dodecyl sulfate (SDS)

Summary

Introduction

Micelles are observed when the concentration of the surfactant is above the critical micelle concentration (CMC). Since Ishibashi first introduced the surfactant into fluorescence analysis, its action mechanism between fluorescence materials and surfactant has been attracting widespread attention because of versatile practical applications of such systems [6,7,8,9] In recent years, such reports about the fluorescence behaviors of fluorescent materials in surfactant aqueous solution have been increasing. In February 2015, in a stimulation of n-B18H22 cyclohexane solution with a nitrogen laser under λ = 337.1 nm carried out by scientists from Czech Republic and Spain, an efficient and anti-laser light source was discovered to radiate under λ = 406 nm [15] This led to the development of the first borane laser based on n-B18 H22, which laid the foundation for this new material that evolved into a more environmentally friendly and economical modern laser. On the basis of the above considerations and the synthesis of n-B18H22, the investigators expect to discover appropriate surfactant

Methods

Results

Conclusion