Effect of green synthesized Zinc-Polyphenol complex on structural and optical properties of peo based composites

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

In this study, a green chemistry method was used to synthesize polymer composites based on polyethylene oxide (PEO). The remediation of metal complexes applied in this work is environmentally friendly and cost-effective. Zinc metal ion (Zn²⁺)–polyphenol (PPHNL) complexes were synthesized by combining a black tea leaves (BTL) extract solution with dissolved zinc acetate. UV-Vis and FTIR analyses were conducted on the Zn–PPHNL complex in both liquid and solid states. The FTIR spectra show that BTL contains sufficient functional groups (O–H, C–H, C=O, C=C, C–O, C–N, and N–H), as well as PPHNL and conjugated double bonds, which facilitate the formation of metal complexes by capturing Zn²⁺ cations from the zinc acetate salt. Furthermore, the FTIR analysis of both BTL and the Zn–PPHNL complex confirms complex formation through noticeable changes in the intensity of absorption bands. The UV absorption spectra of BTL and Zn–PPHNL also confirm complex formation, as shown by the increased absorbance of the Zn–PPHNL complex (0.1) compared to the extracted tea solution alone (0.01). According to X-ray diffraction (XRD) analysis, the Zn–PPHNL complex is amorphous, and the PEO composite becomes increasingly amorphous as the concentration of Zn–PPHNL increases. Moreover, morphological studies using an optical microscope (OM) show that the size of spherulites, attributed to the crystalline phase, decreases significantly with increasing concentrations of Zn–PPHNL in the PEO polymer matrix. The optical properties of the PEO:Zn–PPHNL films were studied extensively using UV–Visible spectroscopy. The optical band gap (Eg) was calculated by analyzing dielectric loss and found to decrease from 5.5 eV to 0.85 eV as Zn–PPHNL concentration increased. Tauc's method was used to identify the nature of electronic transitions in the films. The influence of crystallinity and morphology on these transitions was discussed, along with fundamental optical dielectric functions used to determine key parameters. Finally, electron transitions were interpreted from the perspective of quantum transport.

روابط وملفات

التعريف والنوع

رقم الوثيقة

0b46f0e5-2dd4-4d71-a24f-2dd3a5a04568

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

0b46f0e5-2dd4-4d71-a24f-2dd3a5a04568_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Daron Qader Muheddin","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Pshko A. Mohammed","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Shujahadeen B. Aziz","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Effect of green synthesized Zinc-Polyphenol complex on structural and optical properties of peo based composites

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

Green Chemistry Polyethylene Oxide (PEO) Polymer Composites Zinc Polyphenol Complex (Zn–PPHNL)

إشراف وإعداد

الإشراف

Pshko A. Mohammed, Shujahadeen B. Aziz

الإعداد

Daron Qader Muheddin

الاقتباسات الببليوغرافية