研究了浓度对壳聚糖聚合物光谱和光学性能的影响

Q1 Engineering

Periodicals of Engineering and Natural Sciences Pub Date : 2023-02-20 DOI:10.21533/pen.v11i1.3435

S. Abdulrazzaq

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引用次数: 0

摘要

由于其值得注意的物理化学行为，壳聚糖（CS）生物聚合物是传统生物材料的一种引人注目的替代品。通过在分光荧光光度计上测量不同浓度（1x10-4、1x10-5和1x10-6）M的发射光谱，获得了CS聚合物的光谱特性。通过X射线衍射（XRD）分析测定了CS聚合物的结晶度，其显示只有一个主峰指向正交结构。随着溶液浓度的下降，出现了向更短波长的转变，量子产率下降。用紫外-可见分光光度计研究了CS聚合物的光学性能，包括折射率、吸收系数、能带隙、消光系数和介电常数。结果表明，光学参数与浓度呈线性关系。与光学能隙相反，光学能隙随着浓度的增加而减小。

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Studying the effect of concentration on spectral and optical properties of chitosan polymer

Due to its noteworthy physico-chemical behaviors, the chitosan (CS) biopolymer presents a compelling alternative to conventional biomaterials. By measuring the emission spectra at a spectrofluorophotometer in different concentrates (1x10 -4 , 1x10 -5 , and 1x10 -6 ) M, the spectral characteristics of the CS polymer were obtained. The crystallinity of the CS polymer was determined by X-ray diffraction (XRD) analysis, which shows only one dominant peak indexed to the orthorhombic structure. With a drop in solution concentration, there was a shift toward the shorter wavelength and a decline in quantum yield. Using a UV-Vis spectrophotometer, the optical properties of the CS polymer, including its refractive index, absorption coefficient, energy band gap, extinction coefficient, and dielectric constant, have been studied. It was observed through the results that the optical parameters are linearly dependent with concentration. In contrast to the optical energy gap, which decreases with increasing concentration .

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来源期刊

Periodicals of Engineering and Natural Sciences Engineering-Architecture

CiteScore

1.90

自引率

0.00%

发文量

140

审稿时长

7 weeks

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